Topic
Gear pump
About: Gear pump is a research topic. Over the lifetime, 7490 publications have been published within this topic receiving 38837 citations. The topic is also known as: Gear pump.
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Patent•
03 Nov 2010
TL;DR: In this article, a modular internal gear pump or a modular motor, comprising a plurality of generalized components such as a shell, an internal gear pair, an input shaft, a fixed shaft tray component, a floating shaft trays, a flange cover component and a rear cover component, is presented.
Abstract: The invention discloses a modular internal gear pump or a modular motor, comprising a plurality of generalized components such as a shell, an internal gear pair, an input shaft, a fixed shaft tray component, a floating shaft tray component, a flange cover component, a rear cover component and the like, so as to form a barbell type combined structure connected in series, thus realizing modularization of functions, combination of structures and universalization of parts The invention has the advantages of good universalization of parts, flexible and simple assembly and excellent adaptability of structures, thus achieving the beneficial effects of reducing inventory of parts, shortening the cycle of production and goods delivery and reducing operation cost of products
11 citations
Patent•
30 Jun 2005
TL;DR: In this article, a motor-integrated internal gear pump and electronic equipment was provided, in which an inexpensive and miniaturized pump is provided, and a high degree of reliability is ensured, while maintaining the inexpensive function.
Abstract: PROBLEM TO BE SOLVED: To provide a motor-integrated internal gear pump and electronic equipment in which an inexpensive and miniaturized pump is provided, and a high degree of reliability is ensured, while maintaining the inexpensive function. SOLUTION: The motor-integrated internal gear pump 80 comprises a pump part 81 for sucking and discharging hydraulic fluid, and a motor part 82 for driving the pump part 81. The pump part 81 comprises an internal rotor 1 with teeth formed on the outside periphery, an external rotor 2 with teeth formed on the inside periphery to be meshed with the teeth of the internal rotor 1, and pump casings 3, 4 for enclosing the internal rotor 1 and the external rotor 2. The motor part 82 comprises a rotor 11 and a stator 12 for rotating the rotor 11. The rotor 11 and the external rotor 2 are formed by sharing a permanent magnet member 112 prepared by adding magnetic powder in a resin. COPYRIGHT: (C)2007,JPO&INPIT
11 citations
Patent•
14 Apr 2000
TL;DR: In this article, a gear pump having shafts mounted with rolling element bearings and having mechanical seals on the face of the gears provides improved "clean-in-place" ability.
Abstract: A gear pump having shafts mounted with rolling element bearings and having mechanical seals on the face of the gears provides improved “clean-in-place” ability. Preferably, washer-like seals are mounted on the face of the gears with a suitable adhesive and the cup-like seals are mounted in end housings. The end housings mate with a central housing enclosing the gears, to provide improved assembly.
11 citations
Journal Article•
TL;DR: Aiming at the function of variable displacement gear pumps and the application of noncircular bevel gears, a kind of new intersection axis variable gear pump named higher order elliptic bevel gear pump was proposed as mentioned in this paper.
Abstract: Aiming at the function of variable displacement gear pumps and the application of noncircular bevel gears,a kind of new intersection axis variable gear pump named higher order elliptic bevel gear pump was proposedThe gear pump is a non-circular bevel gear pump which takes the high-order ellipse bevel gear as working rotorThe gear profile formative method of gear rotor can be provided based on the space engagement theoryTransmission characteristic of the pump was analyzed according to the special kinematic traits of ellipse gearAverage theoretical flow formula,instantaneous flow formula and flow pulsation formula of this pump were deduced base on the differential theory of spherical spaceMeanwhile the impact of eccentricity ratio and exponent number on flow characteristic was also analyzedAverage theoretical flow and instantaneous flow of high-order ellipse bevel gear pump were compared with both cylindrical gear one and noncircular cylindrical gear one under the same work condition and similar model parameter,and which shows that the characteristic of high-order ellipse bevel gear pump owns the features of higher delivery and wider range of variation
11 citations
Patent•
20 Aug 2008
TL;DR: In this paper, a power system of a jumping robot with a brushless direct current motor and a gear pump is described. But the main advantage of this system is that the element amount of the system is reduced; meanwhile, the weight of the brush motor is only one third of the motor with the same power, the jumping energy is cumulated and stored, and the total weight and volume of the robot is reduced.
Abstract: The invention discloses a power system of the jumping robot. A brushless direct current motor is connected with a gear pump, the oil-in of the gear pump is connected with the oil tank, and the oil outlet of the gear pump is connected with the port A of the two-position four-way solenoid directional control valve. The port B of the two-position four-way solenoid directional control valve is connected with the inner of the gasoline tank. The port P of the two-position four-way solenoid directional control valve is connected with the upper chamber port of the hydraulic cylinder, and the port T of the solenoid directional control valve is connected with the lower chamber port of the hydraulic cylinder; wherein, a spring is arranged in the upper chamber of the hydraulic cylinder, one end of the spring is propped on the upper inner wall of the hydraulic cylinder, and the other end of the spring is propped on the upper wall of the piston of the hydraulic cylinder. The power system of the jumping robot has the advantages that the power of motor of the system is reduced; the element amount of the system is reduced; meanwhile the weight of the brushless direct current motor is only one-third of the brush motor with the same power, the jumping energy is cumulated and stored, and the total weight and volume of the system is reduced. The invention is suitable for using in the jumping robot.
11 citations