Showing papers on "Reducer published in 2002"

Vortex reducer in the high-pressure compressor of a gas turbine

Abstract: A tube-type vortex reducer for the conduction of cooling air in a compressor 1 of a gas turbine with at least one radial secondary air tube 2 arranged in a disk interspace 3 , includes a deflector arranged in a discharge area of the secondary air tube for the deflection of the secondary air flow into an axial direction or away from an axial direction.

Gas turbine electric powerplant

Abstract: A gas turbine electric powerplant, preferably driven by an aeroderivative turbine engine of split shaft design. The gas turbine engine is coupled to a speed reducer, which is in turn coupled to an electric generator. An engine mount is provided that ensures that the gas turbine engine will remain in proper alignment with the speed reducer and generator, even during the thermal expansion or contraction thereof. Preferably, the components comprising the powerplant are mounted to a common, transportable base, so that the powerplant can be delivered to various locations. An overspeed control system is provided for ensuring that a runaway condition of the gas turbine engine does not occur should the gas turbine engine become disconnected from the speed reducer or generator. Sensors are used to monitor multiple operating conditions of the powerplant. A microprocessor-based control system communicates with the sensors, and is further adapted to activate the overspeed control system if an overspeed condition is detected.

Motorized bogie for a low-floor railway vehicle

Abstract: The powered bogie comprises a chassis (1) resting on four wheels (2) by means of a primary suspension (3). The chassis supports a motor (5) connected to a wheel by a transmission. Each wheel comprises an individual wheel shaft supported by an axle box. The transmission comprises a reducer (7) directly coupled to the wheel shaft and a double cardan joint telescopic transmission (6) located between the reducer and the motor. The reducer is placed outside the wheel and comprises a casing integrating the wheel shaft axle box. The reducer casing supports the primary suspension.

Reducer fitting for routing system

Abstract: A fitting for routing cables between first and second ducts in a raceway system, the first duct having a first cross-sectional dimension and the second duct having a second and different cross-sectional dimension from the first cross-sectional dimension, the fitting including a first end for attaching to the first duct, a second end for attaching to the second duct, and an insertable reducer disposable generally between the first and second ends of the fitting, the reducer for adapting the fitting to transition between the first and second cross-sectional dimensions, the reducer including a barb for bitingly engaging at least one of the ducts and retaining the at least one duct to said fitting.

Tunnel pipe transporting mounting vehicle

Abstract: The tunnel pipe trasporting installation vehicle is formed from tractor truck, pipe-carrying vehicle and electric and hydraulic control system. The tractor truck in cludes chassis, driven wheel groupand driving wheel group, power device and speed reducer, cabin, track-cleaning device, warning signal light and headlight; the pipe-carrying vehicle includes front wheel group, front platform, pipe-carrying vehicle beam, lifting wheel group, lifting tyre group, supporting device, pipe-carrying carriage on the pipe-carrying vehicle beam and pipe-carrying lifting device; the described hydraulic control system includes tractor truck static pressure transmission system and hydraulic control system of pipe-carrying vehicle. Said vehicle is compact in structure, stable in operation, can transport, lift and install large-diameter PCCP pipe.

Adjustable speed reducer assembly

Abstract: An speed reducer assembly is provided along with a method and apparatus for adjusting the speed reducer assembly to achieve zero backlash. The speed reducer assembly includes a split worm with a fixed worm segment and a floating worm segment which mesh with the teeth of the gear. The position of the worm relative to the gear can be precisely and accurately adjusted without disassembly of the speed reducer or removal of the speed reducer assembly from the housing. Elimination of a constant spring force on the floating worm segment of the split worm also provides for the elimination of drag which results in a speed reducer assembly with increased efficiency. The elimination of drag also reduces the wear on the elements of the speed reducer assembly.

Electric power steering device

Abstract: PROBLEM TO BE SOLVED: To solve the problem on an electric power steering device using resin teeth for a reducing gear mechanism (a worm reducer) that the resin property of the resin teeth is lowered as it is used because the glass transition temperature of a resin is within a vehicle operating temperature range, to increase the backlash of the reducing gear mechanism and impair steering feeling or cause unusual noises (grinding of the teeth). SOLUTION: This electric power steering device comprises a reducing gear mechanism (a worm reducer 99) having a driven gear (a worm wheel 2) with resin teeth 2b, the resin teeth 2b being formed of a radiation crosslinking resin. Therefore, the good electric power steering device can be obtained without increasing the backlash of the gear reducing mechanism as it is used.

Mounting system for speed reducers

Abstract: A mounting system for a speed reducer having a housing with a rotatable input drive coupled with the housing and a gear train coupled with the input to drive an output. The mounting system has a cylinder having an inner and outer surface and two ends. The outer surface includes a portion adapted to couple with the drive train. The outer surface at both ends may have a threaded portion or another securement portion. The inner surface may be tapered from both the ends such that the tapers are substantially symmetrical about the cylinder. A bushing ring, with an internal diameter, may include threads to threadily connect with either threaded end of the output cylinder, or another type of securement may be used. A bushing, which includes a flange and a cylindrical portion, is adapted to couple with the bushing ring. The flange portion couples with the bushing ring on either side of the output cylinder. The cylindrical portion may have an outer tapered surface complementary to the inner tapered surface of the cylinder. The bushing secures the speed reducer with a shaft so that the speed reducer may be secured to the shaft from either end of the cylinder.

Power transmission device for motor-driven two-wheeled vehicle

Abstract: PROBLEM TO BE SOLVED: To provide a power transmission device for a motor-driven two- wheeled vehicle capable of realizing thinning of an electric power unit. SOLUTION: This motor-driven two-wheeled vehicle is constituted by incorporating the electric power unit comprising an electric motor 39 and a planetary gear speed reducer (gear speed reducer) 40 for transmitting rotation of the electric motor 39 to a rear axle 47a by reducing the speed of the rotation into a rear arm 24 and mounting a rear wheel 26 at an end part of the rear axle 47 projecting outward from a rear part of the rear arm 24. The electric motor 39 is constituted of an axial gap type motor provided with a rotor 39A rotating together with a rotary shaft 42 coaxial with the rear axle 47a. The planetary gear speed reducer 40 is arranged into a recessed part formed at the center of rotor 39A to partially overlap the planetary gear speed reducer 40 and a magnet 39b fixed to the rotor 39A in a vehicle width direction. COPYRIGHT: (C)2003,JPO

Reducer feeding device

Abstract: PROBLEM TO BE SOLVED: To provide a reducer feeding device capable of efficiently removing nitrogen oxides from exhaust gases by using urea as a reducer. SOLUTION: In an exhaust gas pipe allowed to communicate with a combustor, a through-hole 11 is formed at the tip of a nozzle 7 feeding urea water in a direction parallel to or perpendicular to the flow direction of combustion exhaust gas passed through the inside of the pipe. The nozzle 7 is disposed with the tip thereof facing downward, and a urea water upward spattering prevention board 15 is installed at a position higher than a position where the through-hole 11 is provided. COPYRIGHT: (C)2004,JPO

Virtual Ground Circuit

Abstract: Methods and systems for improving a logic circuit are described. By using a voltage reducer for connecting a power-supply to a virtual ground, the voltage reducer reduces the voltage supplied by the power-supply to the virtual ground during one phase of the clock, thereby increasing the speed and efficiency of the logic circuit.

Speed reducer and electric retractable rearview mirror equipped with the speed reducer

Abstract: A speed reducer including a gear box having a first frame and a second frame combined together, an input gear fixed on an input shaft being rotated by a driving force, an output gear fixed on an output shaft, an intermediate shaft, intermediate gears fixed on the intermediate shaft to reduce a speed of rotation of the input gear for being transmitted to said output gear, wherein the input shaft and the intermediate shaft are rotatably supported by the first frame for always maintaining the length between each core of the input shaft and the intermediate shaft as a predetermined length.

Flared butt reducer for logs (ii)

Abstract: A butt reducer machine is provided to remove excess wood from the swelled butt ends of logs. Cutting heads supported on pivoting arms, carried in turn within a rotating frame, are caused to oscillate circumferentially about the portion of the log to be removed. This butt-removal process may be carried out while a log is in motion longitudinally, either before or after the log enters a de-barking machine. The process may also be effected on a stationary log.

Process for preparing chiral desubstituted carbinol with high selectivity

Abstract: A high-selectivity process for preparing chiral desubstituted carbinol features that the potential chiral ketone is reduced by boron hydride as reducer under the action of lewis acid and catalytic chiral ligand. Its advantages are high selectivity, high output rate and low cost.

Pressure reducer with adjustable flow restrictor

Abstract: A pressure reducer has a housing comprising an inlet and an outlet in which a flow-around body is arranged in a flow channel connecting inlet and outlet. A flow restrictor is adjustably mounted relative to the flow-around body for varying a flow rate and is movably connected with an adjusting means comprising a recirculating ball nut and a rotating spindle wherein the rotating spindle is movably connected with said flow restrictor. To improve such a pressure reducer that a corresponding flow restrictor with a facilitated construction is reliable and can exactly be adjusted in position, the recirculating ball nut is detachably fastened to a turning sleeve rotatably mounted in the flow-around body and the recirculating ball nut is connected with a driving toothed wheel in a rotation-resistant manner, which is rotatable by an electric drive for the movable connected with recirculating ball nut.

Hybrid motorcycle and its power transmission device

Abstract: PROBLEM TO BE SOLVED: To provide a power transmission device for a hybrid motorcycle capable of performing an engine start, an assist and a battery charging using a small-type rotating electric machine. SOLUTION: The power transmission device consists of a first power transmission part 10A which transmits the rotation of a rotating shaft 2a of the rotating electric machine 2 to a crank shaft 1a of an engine 1 through a reducer 11 and a one-way clutch 12, and a second power transmission part 10B which transmits the rotation of the rotating electric machine 2 to the crank shaft 1a through an electromagnetic clutch 14 and a power transmission mechanism 13 having a smaller reduction ratio than the reducer 11 which are provided between the rotating shaft of the rotating electric machine and the crank shaft of the engine. The electromagnetic clutch 14 is set to be in an OFF state at the time of engine start, and the electromagnetic clutch 14 is set to be in an ON state after the engine start. COPYRIGHT: (C)2004,JPO

Unstrained spirits turnover machine

Abstract: The utility model discloses a fermented turnover machine, which relates to a brewing processing appliance for vinegar and soya sauce. The fermented turnover machine takes a machine frame as a main body which is supported by four movable wheels at left and right, the movable wheels are arranged on both side column guide rails of a fermented pool to walk along the length direction automatically, a worm reducer is adopted as a drive electric motor, and the move wheels with synchronous and automatic walk are realized. The utility model is provided with a fermented material scarifying mechanism of material bucket group fermented turnover, and a thickness adjusting mechanism for a fermented turnover mater layer, and the fermented material scarifying mechanism and the thickness adjusting mechanism are operated and controlled in a centralized way by an electrical control box. The utility model has the advantages of simple structure, convenient operation, high automation degree, thorough fermented turnover, good fermented turnover ventilation property, etc. The utility model overcomes the defects of the original technology with uneven fermented turnover quality, poor stability, etc. The utility model is a fermented turnover machine with practicality, reliability and high efficiency.

Hydraulic motor driven speed reducer

Abstract: The utility model discloses a hydraulic motor driven speed reducer, consisting of a hydraulic motor, a hydraulic control valve unit, a reducer and a brake The reducer is two planetary differential devices Drive mechanism is simple with convenient manufacture and repair and a reduction of half price In Particular, the four sections of the reducer are divided into two assemblies, coupling with screw, thus, the hydraulic motor driven speed reducer is further to be improved in simplicity and convenience The utility model is great in equal load performance and steady in transmission

Electric driving unit and electric vehicle

Abstract: The present invention discloses an electric driving unit comprising a casing with a motor storage space, an electric motor and a speed reducer, wherein the electric motor and the speed reducer are supported by and arranged coaxially to each other in the casing, and wherein a controlling means for controlling the electric motor is provided being disposed close to the electric motor within the motor storage space formed in the casing, and an electric vehicle with such an electric driving unit.

Variable roller spacing straightening machine for medium plate

Abstract: The utility model provides a straightener for straightening variable roller spacing of medium and thick steel plates The machine tool of the straightener comprises a main motor, a reducer, a gear distribution box, a universal-joint spindle, a straightener body, an inlet pinch roll, an outlet pinch roll and a changing rig The straightener body consists of an upper roll device, a lower roll device, an upper walking beam, a screwdown cylinder, a balanced cylinder and a rotary bracket Motors, worm gear reducers, screw rods and nuts are separately installed on the upper roll device and the lower roll device; a wedge is mounted below a back-up chock in a straightener roll; screwdown cylinders are respectively positioned on the inlet side, the outlet side, the driving side and the changing side on the upper part of the upper roll device; the pinch rolls on the inlet side and the outlet side are provided with hydraulic cylinders, motors and reducers; a frame on the driving side is mounted with the rotary bracket; spigots with adjustable gaps are provided on both ends of the straightener roll and are linked with an upper roll frame and a lower roll frame The utility model requires strong capability of straightening steel plates, wide range of the straightened steel plates thickness and high intensity steel plates and effectively overcomes the defect of straighteners with constant roller spacing

The Virtual Shared Memory Performance of a Parallel Graph Reducer

Abstract: This paper assesses the costs of maintaining a virtual shared heap in our parallel graph reducer (GUM), which implements a parallel functional language. GUM performs automatic and dynamic resource management for both work and data. We introduce extensions to the original design of GUM, aiming at a more flexible memory management and communication mechanism to deal with high-latency systems. We then present measurements of running GUM on a Beowulf cluster, evaluating the overhead of dynamic distributed memory management and the effectiveness of the new memory management and communication mechanisms.

Movable chamfering machine

Abstract: The utility model discloses a movable chamfering machine, which comprising a soleplate, a gripping holder, a knife rest, a headstock which consists of a principal axis, a gearwheel, a pinion wheel, a speed reducer and a box body in addition to a feeder which consists of a screw mandrel, a worm wheel, a worm, a worm-gearing and a shell; and the knife rest is fixed on the principal axis of the headstock. The gripping holder, the headstock and the feeder are fixedly arranged on the soleplate; and the utility model is mainly used in the industry of petrochemical machinery, boiler making and architecture heating, with the aim of processing the metallic conduit end into various groove-welds, screeding the surface of the conduit end and boring the inside diameter. Specific conduit end processing device or fixed base of the boring lathe is not necessary in the installation of the utility model. Therefore, the utility model has the advantage of simple structure, flexible and convenient operation, unlimited position and convenient processing in conduit end grooves of all types.

Belt roller bed conveyer

Abstract: The utility model relates to a belt roller bed conveyer which consists of a driving gear consisting of a direct motor reducer (2) arranged on the bedstead (1) and a driving pulley (3) and an actuating mechanism consisting of a driving-belt (4) and a power roller assembly, wherein the power roller assembly comprises a transfer roller (6), a driven pulley (7), a supporting shaft (8) and a locating pipe (9). Compared with a chain roller bed conveyer, the utility model has the advantages of a simple and compact structure, great noise reduction, stable and reliable operation, convenient manufacture and installation and low cost.

Gas turbine power generation facility

Abstract: A planetary gear speed reducer (10) is installed between a gas turbine (1) and a generator (5). The planetary gear speed reducer has an elastic deformation means (12) on its output side, the elastic deformation means having its strain energy within elastic limit set so that it is greater than the variation torque energy of the generator at the time of instantaneous voltage drop. The elastic deformation means (12) comprises an elastic member that elastically connects the output shaft (10a) and outer ring (10b) of the planetary gear speed reducer. Therefore, when a short-time excessive torque is produced in the generator due to instantaneous voltage drop, power failure or the like, it is possible to maintain the operation of the generation facility and secure the power source of the important load and to reduce the installation length to make the apparatus compact.

Motor-operated flow regulating valve and refrigerating cycle device

Abstract: PROBLEM TO BE SOLVED: To miniaturize a driving motor, to miniaturize the whole constitution, and to reduce an arranging space SOLUTION: This motor-operated flow regulating valve 11 has an almost cylindrical pipe 12, a rotor 17, a speed reducer 22 and a moving mechanism 28 are arranged inside of this pipe 12, a valve element 32 is arranged in a tip part of a moving member 30 of the moving mechanism 28, a valve seat 33 having a hole 33b blocked up when fitting the valve element 32 is arranged inside one end part of the pipe 12, and a stator 34 is arranged outside the pipe 12 This constitution can set torque of the driving motor 37 small, and can be mininaturized

Saddle riding vehicle

Abstract: A saddle riding vehicle including an engine mounted at the center of the vehicle body frame, a saddle seat mounted above the engine, and rear wheels mounted on both sides of the rear portion of the vehicle body frame. The power of the engine is transmitted to the rear wheels via a propeller shaft and a final speed reducer, and the propeller shaft is provided with a rising gradient from the engine toward the final speed reducer. As a result, the final speed reducer can be disposed in our upper position. In other words, the final speed reducer can be disposed at a high position from the ground, so that a sufficient suspension stroke is obtained. As a consequence, the design freedom or layout freedom of the vehicle is expanded.

Flange friction reducer and method

Abstract: PROBLEM TO BE SOLVED: To improve traveling stability of a railroad vehicle in a turnout with large curvature. SOLUTION: This flange friction reducer 1 is disposed on a side face of a head part of a rail 2 in a longitudinal direction of the rail 2, and provided with a container 5 which can store water W at a water level where at least a part of a flange of a wheel rolling on the rail 2 can be submerged. COPYRIGHT: (C)2004,JPO

Research Progress of Drives Used in Robot Joint

Abstract: The research progress of drives used in robot joint is reviewed The research actuality, characteristics and theory of the most advanced RV reducer are introduced in detail

Infinitely variable transmission for vehicle, has composite train to connect engine to vehicle wheels, simple train to realize branching of power and another composite train to realize operation mode changing system

Abstract: The transmission has a composite train (TA) to connect a thermal engine (230) to wheels of a vehicle based on a main path of power branch. A simple train (TB) realizes the branching of power and a composite train (TC) to realize a system that changes mode between two operating modes of the transmission. The simple train has an epicyclical train (238) connected to a reducer (239) and the engine. The output of the reducer is connected with driving rods of the vehicle and with a satellite door of an epicyclical train (237). A planetary (P2) of the train is connected to a satellite door (ps) of the train (TB) whose planetary (p) is connected to a tree of electric rotation of a machine (232). A machine (231) is connected to a reducer (240) by an output shaft.