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.

Car washing apparatus adapted for mounting on the vehicle to be washed

Abstract: A high pressure pump, such as a gear pump or small piston pump, is connected by means of a clutch to be driven by the engine; a collapsible water bag, of thermoplastic material and capable of holding in the order of 8 to 10 gallons of water, is located in the car, for example in the trunk space; a thin flexible tubing is spooled on a reel, located in the car (for example under the hood), and hydraulic interconnections are provided to take water from the water bag through the pump and to the tubing, so that a self-contained car washing system is provided capable of applying a water stream under pressure When not in use, the plastic water bag is collapsed, and can fold flat against the inner wall of the trunk

Methodology based on best practice rules to design a new-born trochoidal gear pump:

Abstract: The trochoidal gear pump, also known as gerotor, owing to its remarkable advantages compared to other hydraulic pumps is chosen for many engineering applications. As each application is unique, the...

Full meshing gear type variable speed transmission for electric cars

Abstract: Disclosed herein is a full meshing gear type variable speed transmission using interlocked gear pairs of the driving and driven gears to transmit power from the mainshaft to the auxiliary axle housing. The mainshaft can only drive the first driving gear through the spiral springs to drive the rest of the other driving gears indirectly. Each spiral spring of the different gear is normally disengaged, when the rotational speed of the auxiliary axle housing is exceeding a set limit, the spiral spring will be engaged with its gears change shift by the automatic gravity type shifting assembly. Each driven gear will also transmit its own power thru the transmission mechanism. Each transmission mechanism allows the driven gear of the higher shift to rotate faster than the driven gear of the lower shift, thus the interlocked pair of gears will not disengage during shifting.

Rotodynamic pump design

Abstract: This book provides a brief but thorough account of the basic principles of good pump design. The first three chapters present the basic hydraulic equations, including cavitation, and discuss the principles that underlie the correct performance of the impeller and casing of centrifugal pumps and the blading of axial machines. The fourth chapter outlines analytical methods for flow calculations, including special techniques used in computer aided design. The following two chapters work through two examples: the impeller and casing of a simple volute type centrifugal pump; and an axial flow pump impeller. Shafts, bearings, seals and drives are discussed in a separate chapter. The last two chapters deal with design for difficult fluids, and codes and practices.

Two-speed transaxle for electric vehicle

Abstract: A two-speed transaxle for an electric vehicle has an input shaft receiving power from an electric motor, and two output shafts delivering power to drive the vehicle. At least one epicyclic gear set is used. Each epicylic gear set has only an outer gear member, each of which meshingly engage a plurality of planet gears supported on a common carrier. The two-speed transaxle produces its first forward speed ratio when a first caliper brake system and a second caliper brake system are disengaged and a one-way clutch connects the first sun gear to the transaxle casing. Second forward speed ratio results when the second hydraulic brake is engaged to fix the second sun gear. Reverse drive and regenerative operation result when the first hydraulic brake fixes the first sun gear and the direction of power flow is reversed.