Showing papers on "Reducer published in 2004"

Exhaust gas purification device of engine

Abstract: [PROBLEMS] To provide an exhaust gas purification device using urea as a reducer capable of being properly operated, capable of stably detecting the concentration of the reducer and stably supplying the reducer in a cold season, and capable of preventing ammonia gas from being produced in a hot season [MEANS FOR SOLVING PROBLEMS] This exhaust gas purification device of an engine (1) supplies urea water in a storage tank (20) to a reduction catalyst (3) disposed in an exhaust system In the exhaust gas purification device, a concentration detection device (60) is installed in the storage tank (20), and the detected concentration of the urea water is adopted as basic information for controlling the supply of the urea water to the reducer Also, a heating device to heat the reducer in the storage tank (20) and a cooling device cooling the reducer are installed to heat, desirably, the reducer near the detection part (61) of the concentration detection device and the suction port (12) of a reducer supply tube (13)

Speed reducer for use in yaw drive apparatus for wind power generation apparatus, and yaw drive method and apparatus for wind power generation apparatus using the speed reducer

Abstract: A yaw drive method of a wind power generation apparatus, in which a second gear engaged with a first gear attached to one of tower or a wind power generation unit supported to the upper end of the tower so as to be capable of yawing and supported to a tower or to the upper end of the tower is rotated by a drive motor attached to the other of the tower or the wind power generation unit for yawing the wind power generation unit. A drive energy, which is supplied to the drive motor for a predetermined time from when the supply of the drive energy to the drive motor begins to start, is made to be smaller than the drive energy supplied to the drive motor in a common yawing.

Drive unit for electric vehicle

Abstract: A drive unit for an electric vehicle is comprised of a motor, an inverter which supplies alternating current electric power to the motor, a speed reducer which is connected to the motor, and a cooling system which cools the motor, the inverter and the speed reducer. The speed reducer reduces a revolution speed of a mechanical output of the motor. The cooling system comprises a heat exchanger at which first refrigerant for receiving heat of at least one of the motor and the inverter receives heat of second refrigerant for receiving heat of at least one of the motor and the speed reducer.

Double crank ring-plate type cycloid pinwheel planetary speed reducer

Abstract: The reducer of the utility model is a double crank circular plate type needle swing planetary reducer and is characterized in that a needle wheel is arranged on the link rod of the double crank parallel linkage. The linkage is combined with a swing wheel that the rotary center centers on the link middle point of the double-crank return center into a small gear difference circular plate type needle swing planetary reducer. As shown in figure, the structure of the utility model adopts four circular plate type needle swing planetary reducers of the double crank driven by a pair of motors, including crank shafts 1 and 3 consisting of each crank shaft separately equipped with two double-eccentric sleeves (10) and equipped with two pieces of inside annular plates (2) and two lateral annular plates (2')with phase shift different 108 degree, the needle wheel is combined with the swing wheel (5)fixed to the output into a small gear difference mesh for the driving, which have the advantages of large range of and high efficient driving, great loading capability and high reliability and whole running under the state of the dynamic balance and is applied to the reducing speed and increasing torque device in the various mechanical equipments. With one motor drive, two crank shafts can be linked by the synchronized belt or three gears, but the running speed of the two crank shafts must be guaranteed to be the same.

Tube-type vortex reducer with retaining ring

Abstract: A tube-type vortex reducer for the conduction of cooling air in a compressor ( 1 ) of a gas turbine, with radial secondary air tubes ( 2 ) being arranged in a disk interspace ( 5 ) and attached to a compressor disk ( 3 ) with their radial outward end section, wherein the end section of the secondary air tubes ( 2 ) are attached to a separate carrier ring ( 6 ), which is connected to a compressor disk ( 3 ).

Coaxial unmanned crane vertical lifting machine

Abstract: A coaxial robot helicopter for lifting and transporting goods features that its lower rotor is equipped with a power system composed of two or more engines, clutch, speed reducer and active gear, its upper rotor is driven by a gear engaged with said active gear, and the reactive force of upper rotor can drive the lower rotor to rotate in different direction, generating lifting force. Said helicopter can be remotely controlled.

Modular imbibition rate reducer for use with implantable osmotic pump

Abstract: An osmotic pump system includes a capsule having at least one delivery port, a membrane plug retained at an open end of the capsule remote from the delivery port, the membrane plug providing a fluid-permeable barrier between an interior and an exterior of the capsule, and a removable imbibition rate reducer attachable to the capsule. The imbibition rate reducer comprises one or more flow controllers selected from the group consisting of an orifice having a selected size smaller than a surface area of the membrane plug and a membrane having a selected thickness, surface area, radial compression, and permeability. The imbibition rate reducer allows customizable delivery of medicaments.

Exhaust emission control device of internal combustion engine

Abstract: PROBLEM TO BE SOLVED: To provide a technology capable of reducing NOx with excellent fuel economy even when the NOx held on an NOx catalyst is reduced by supplying a reducer in an exhaust emission. SOLUTION: This exhaust emission control device comprises the NOx storage/reduction type catalyst 7, an air flow passage including the NOx catalyst 7 and formed in a loop shape, an inlet side cutoff valve 11 cutting off the inflow of the exhaust emission into the air flow passage, and outlet side cutoff valve 12 cutting off the outflow of the exhaust emission from the air flow passage, a reducer supply means 8 supplying the reducer to the air flow passage, an air flow generating means 10 generating air flow in the air flow passage, and an NOx reduction treatment means 20 closing both cutoff valves 11 and 12 and generating the air flow by the air flow generating means 10 and supplying the reducer from the reducer supply means 8. COPYRIGHT: (C)2006,JPO&NCIPI

Belt speed reducer for electric power steering device, and electric power steering device

Abstract: A belt speed reducer for an electric power steering device, having a drive pulley with first helical teeth, a follower pulley with second helical teeth, and a drive belt with third helical teeth. A helix angle (β) of each of the helical teeth and friction coefficient (μ) between the first or second helical teeth and the third helical teeth has a relationship of tanβ < μ. In an electric power steering device, a backlash between meshing gears of a speed reducer is adjusted or tension of a belt of a speed reducer is adjusted.

Cantilever type screen-printing machine with double platform

Abstract: The present invention discloses a cantilever type screen-printing machine with double platforms that possess a gear reducer motor with a hollow shaft to rotate a screw of a threaded screw unit and further drive a threaded rod to move upward and downward without rotation inside the hollow shaft thus make a transverse sliding assembly move vertically and synchronously with the threaded rod. Moreover, by a rectangular frame and two sets of horizontal micro adjustable chase clamping mechanism transversely fixed on the rectangular frame, the relative position between the chase and the print materials is adjusted directly. The upper and the lower platforms are driven and powered by two gear reducer motors and a homocentric coaxial-type driving mechanism respectively. By the simplified driving mechanism, the printing efficiency and productivity are enhanced.

Internal combustion engine starter comprising a cylinder head and speed reducer centring means on the case

Abstract: The invention relates to a starter comprising an electric engine (11) which is connected to a starter drive assembly (30) with a planetary gear speed reducer (45) inserted therebetween. According to the invention, the reducer is housed inside a fixed ring gear (46) which comprises a centring ring (73) having a first support face (70) which is located in the same plane as the connection interface between the support (16) and the cylinder head (15). The invention is suitable for a motor vehicle starter.

Supporting apparatus for a vehicular power unit

Abstract: The invention relates to a supporting apparatus for a vehicular power unit (P) including a power source (E) and a speed reducer (T) which are connected in series. The power unit (2) is provided transversly. The supporting apparatus comprises a power source side mount (16) and a speed reducer side mount (17) for sharing a static load of the power unit (2); and a torque rod (58;67) connecting portion of the power unit (2) remote from a principal axis of inertia (C) to the vehicle body frame (F). The power source side mount (16) is disposed substantially on the principal axis of inertia (C) at one end portion of the power unit (2), and the speed reducer side mount (17) is disposed upward than the principal axis of inertia (C) at another end portion of the power unit (2). The speed reducer side mount (17) includes a speed reducer side member (42) and a vehicle body frame side member (23), a front elastic stopper (52) abutting on the vehicle body frame side member (23) when the speed reducer side member (42) is displaced frontward by a first distance (L1) relative to the vehicle body frame (F) and a rear elastic stopper (53) abutting on the vehicle body frame side member (23) when the speed reducer side member (42) is displaced rearward by a second distance (L2) relative to the vehicle body frame (F), wherein the second distance (L2) is longer than the first distance (L1).

Exhaust emission control system

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control system in which effective use of a reducer is achieved, while preventing deposition of its components SOLUTION: The exhaust emission control system comprises a NO x -reduction catalyst 20, a hot plate 28, an electric heater, a supply nozzle 18, and a control unit 24 The NO x -reduction catalyst 20 is provided to an exhaust pipe 14 of an engine 10 so as to exert NO x -reduction control by a liquid reducer such as urea aqueous-solution The hot plate 28 is placed on a lower part of the exhaust pipe 14 positioned upstream of the exhaust gas of the NO x -reduction catalyst 20 The electric heater is incorporated in the hot plate 28 The supply nozzle 18 supplies the liquid reducer on the top face of the hot plate 28 The control unit 24 controls the electric heater so that plate temperature of the hot plate 28 reaches at least a melting point of the reducer component The liquid reducer supplied on the top face of the hot plate 28 is actively evaporated and hydrolyzed to prevent deposition of the reducer component, and its effective use is achieved COPYRIGHT: (C)2006,JPO&NCIPI

An exhaust emission reduction system

Abstract: The present invention involves thermal management of an integrated emission reduction system for the removal of particulate matter (PM) and nitrogen oxides (NOx) from diesel engine exhaust streams (17). The inventive integrated emission reduction system (10) may include a diesel particulate filter (DPF) (70), a heat source (80) for adjusting the temperature of the exhaust stream (17) entering the DPF (70), at least one selective catalytic reducer of NOx (60), a heat exchanger (50) for adjusting the temperature of the exhaust stream entering the NOx reducer (60), and a computing device (100) for monitoring the temperature and/or pressure of the exhaust stream (17) entering the DPF (70) and the NOx reducer (60), and for controlling the operation of the heat exchanger (50) and heat source (80), thereby improving the efficiency of the DPF (70) and the NOx reducer (60).

Power assembly of light micro mixed power electric car

Abstract: The utility model provides a power assembly of the slight hybrid power electric automobile which is simple in structure and is convenient for entire car arrangement The utility model comprises an internal combustion engine, a main motor, a clutch and a gear box; a bent axle of the internal combustion engine is connected with one end of an input shaft of the gear box through the clutch; the main motor is arranged on the shell of the gear box; a rotor shaft is connected with the other end of the input shaft of the gear box in coaxial transmission; the input shaft of the gear box is connected with the input shaft of the gear box in transmission through a gear pair and a synchronizer The rotor shaft is better to be connected with the other end of the input shaft of the gear box in transmission through a spline pair The power assembly can reach the purpose that two power sources can output power and mixedly output power respectively, through a main reducer is added in the gear box, the power can be transmitted to a differential gear train and a transmission shaft, finally to the wheels

Enveloping speed reducer

Abstract: A speed reducer is provided with housing having bearing support for a shaft of an enveloping worm and a shaft of a face gear. The enveloping worm placed into meshing engagement with the face gear. They have crossing, intersected or parallel axes. The enveloping worm face gears are used for mechanical power transition while reducing the noise and the weight of the speed reducer.

A grey-based Taguchi method to optimize design of muzzle flash restraint device

Abstract: A grey-based Taguchi method is proposed to discover the optimal design of the rifle muzzle flash reducer. According to existing research and following interviews with specific domain experts, the critical design factors which influence the reducer’s performance have been ascertained. They are: (1) existence of the front cover, (2) diameter of the outside exhaust hole, (3) location of the exhaust hole on the extension tube, (4) diameter of the outside tube and (5) length of the outside tube. Based on these factors and their different levels, the L18 (21*37) orthogonal array was chosen for experimental combinations. Analyses of the S/N ratio and grey matrix are presented to conduct verification through the obtained raw data from test firing. The proposed methodology confirms the stability of the optimal combination. Moreover, verification results boost one’s confidence that the optimal reducer’s parameters can achieve optimal quality. Under α=0.05, the most significant factor for reducing muzzle flash is the existence of the front cover. Using such a reducer, with a combination designed in accordance with the Taguchi method, the muzzle flash with the reducer decreased the pixels from 94322 to 341, a 99.64% improvement. This is an extemely significant amelioration.

Motorized wheel driving device

Abstract: PROBLEM TO BE SOLVED: To provide a motorized wheel driving device improving the durability of a wheel bearing device, decreasing the size/weight of the device, and improving traveling performance of a vehicle SOLUTION: The motorized wheel driving device comprises a wheel bearing device 1; a planetary speed reducer 2 installed to the wheel bearing device 1; and a driving portion 4 composed of a rotor 21 adhered to a rotating member 20, and an electric motor 22 having a stator opposite to the rotor 21 Rotations of the electric motor 22 are transmitted to a hub ring 5 by the planetary speed reducer 2 The planetary speed reducer 2 comprises a sun roller 17, a plurality of planetary rollers 15 rolling along an inner peripheral surface of an outward member 8, and carrier pin 14 rotatably supporting these planetary rollers 15 to a hub ring 7 The driving portion 4 comprises a stator housing 18 including the stator 19, and a rotating member 20 rotatably supported to the stator housing 18 A disc brake 24 is integrally installed to the rotating member 20 COPYRIGHT: (C)2005,JPO&NCIPI

Cooling structure for motorized roller

Abstract: A cooling structure for a motorized roller is provided, which has a simple construction, and is capable of effectively reducing temperature increases inside the apparatus. Such a motorized roller includes a motor and a reducer which are disposed inside a roller body. Rotations of the motor are reduced by the reducer and transmitted to the roller body, and a reaction force to the driving force of the roller body is able to be received, via casings that house the motor and the reducer, by an external member that fixes the casings so that rotations of the casings are prevented. In this cooling mechanism for the motorized roller, an air passage for guiding air in an axial direction from one end of the reducer to the other end is formed in an outer peripheral surface of the casing for the reducer.

Apparatus for deploying and retrieving water sampler

Abstract: An apparatus includes a bi-directional DC motor; a gear reducer connected to the DC motor; a pulley mounted on an output of the gear reducer; an anti-back drive brake mounted on the output of the gear reducer; a reel wound with cable; a second pulley attached to the reel wound with cable; a belt for connecting the pulley and the second pulley; a water measuring device attached to an end of the cable wound on the reel; at least one shaft encoder attached to the motor for measuring the speed and direction of the motor; a DC power source connected to the DC motor; a microprocessor control electronics module connected to the at least one shaft encoder and the DC motor; and a remote control in communication with the microprocessor control electronics module

NOx REMOVAL EQUIPMENT AND NOx REMOVING METHOD

Abstract: PROBLEM TO BE SOLVED: To provide NOx removal equipment, improving reliability in exhaust gas cleaning performance and exhaust gas cleaning efficiency. SOLUTION: In an SCR system 1, NOx contained in exhaust gas 8 from an engine 2 is cleaned in an SCR catalyst 3 by a reduction action of reducer supplied from a reducer adding nozzle 5. At an optimum temperature wherein hydrolysis reaction is promoted by a heater 18, a urea water is hydrolyzed by a hydrolysis catalyst 17, and the generated ammonium carbonate is used as a reducer. COPYRIGHT: (C)2006,JPO&NCIPI

Vibration suppressing device of molded product ejector

Abstract: PROBLEM TO BE SOLVED: To provide the vibration suppressing device of a molded product ejector which is constituted so as to perform the transfer to next operation for a short time by causing vibration for negating residual vibration in a simple constitution to efficiently absorb the residual vibration to shorten an ejection time and replacing a dynamic vibration reducer at the time of stage replacement by preparing the dynamic vibration reducer corresponding to an ejection condition when the alteration of the ejection condition occurs by the alteration of an acceleration/deceleration time band or a chuck plate to efficiently suppress the residual vibration of an arm with respect to the alteration of the ejection condition of every kind. SOLUTION: The dynamic vibration reducer for causing vibration for negating the residual vibration of a movable body at the time of stop of movement is provided to at least either one of a chuck or the movable body for moving the chuck in the molded product ejector for controlling the movement of the chuck for holding the molded product between predetermined positions to eject the molded product from a resin molding machine. COPYRIGHT: (C)2004,JPO&NCIPI

Steel tube aligning and scaling machine

Abstract: The utility model discloses a steel pipe aligning and scaling machine which comprises a machine frame, an electric motor, a speed reducer, and a roller group which comprises a movable roller and a fixed roller, wherein both ends of each roller have radians with the corresponding size as a steel tube, and the radians are arranged in an upper and a lower lines; the movable roller is driven by power; the input end or the output end of the steel tube is provided with a scaling mechanism The utility model uses the roller group to forcibly align pressure so as to reach the purposes of aligning and rounding, and has the advantages of simple and compact structure, convenient operation, high safety, reliability, high efficiency, etc

Torpedo hot metal mixer can tank body dumper driving system

Abstract: A drive system for tilting the tank of torpedo-type molten iron mixer is composed of the directly linked speed reducer driving mechanism consisting of FM motor and planetary speed reducer with cycloidal pin gear, the tilting mechanism consisting of suspended speed reducer and big gear, and the anti-torsional flexible buffer mechanism consisting of vertical rod, crank and horizontal torsion rod. The motor drives speed reducer, whose small gears drive big ear to tilt the tank. Its advantages are high drive efficiency, high weight and high reliability.

Hinged-vane rotary pump

Abstract: A hinged-vane rotary pump is disclosed. The pump includes a rotor eccentrically disposed within a chamber and having attached thereto at least two vanes movable between a retracted position and an extended position. At least one friction reducer is attached to each vane, wherein the friction reducer contacts the wall of the chamber when its corresponding vane is in the extended position, and also prevents the second end of its corresponding vane from contacting the peripheral wall when the corresponding vane is in the extended position.

Abnormality-determining device of speed reducer and abnormality-determining method of speed reducer

Abstract: PROBLEM TO BE SOLVED: To provide an abnormality-determining device of a speed reducer high in reliability in simple constitution and capable of determining abnormality of the speed reducer. SOLUTION: This abnormality-determining device of the speed reducer has an abnormality-determining part 21 to determine and treat the abnormality of the speed reducer by inputting a speed command commanded to a motor, a speed detection value detected from the motor and a torque detection value, and the abnormality-determining part 21 judges that the speed reducer 14 is abnormal when it satisfies at least one of following conditions. (1) the torque maximum value 1 at the time when the motor 12 is stationary speed Vc>a torque upper limit threshold value Tu, (2) the torque minimum value T2 a torque fluctuation range threshold value Th. COPYRIGHT: (C)2006,JPO&NCIPI

Plasma reactor in liquid, and reaction method and crystal synthetic method by plasma in liquid

Abstract: PROBLEM TO BE SOLVED: To provide a plasma reactor in liquid and a crystal synthetic method which utilize the characteristics that the plasma in liquid has a high reaction speed, safe, and easy to handle, and further which enables the synthesis or the like of the crystal material having a high purity and a high added value. SOLUTION: The plasma reactor in liquid 1 has a vessel 2 to hold a liquid 3, an electromagnetic wave irradiation means 5 for irradiating the liquid 3 with electromagnetic waves, an air-bubble generating means 4 for generating air bubbles in the liquid, and a reducer supplying means 7 for supplying the reducer into the liquid 3. COPYRIGHT: (C)2005,JPO&NCIPI

Ring type automatic multi-story garage

Abstract: The utility model provides a ring type automatic multi-storage garage, which comprises a hoist device, a lifting platform, a rotating platform, a trailer device, a circular construction structure and an automatic control system Steel ropes of the hoist device which are connected with the corner of the lifting platform drive a weight counterbalance which is arranged on the hoist device to move up and down in an upright slide way through a fixed pulley The lifting platform is arranged in a guide bracket in the middle of the circular construction structure; the outer margin of the lifting platform is respectively provided with guide brackets which distribute symmetrically and match the guide way arranged on the circular construction structure; the steel ropes of the hoist device drive the lifting platform to move up and down The middle of the lifting platform is provided with the turning platform which can rotate along the circular track in the middle of the lifting platform; the drive is that: a three-in-one reducer driven by a variable frequency motor drives the gear outside the returning platform to let the gear return, the angle of revolution being the integral multiples of 45 degrees The trailer device is arranged on the returning platform and can do translation along the guide way of the returning platform and the circular construction structure The utility model has the advantages of small floor space, high automatization, large parking quantity, small investment, convenient and fast parking