Patents in subclass Pumps/Biasing Means Effects Eduction Stroke Of Abutment Driven, Pressure Producing Pumping Member

Parent class: Pumps

Number Patent title Issue Date
07048521 High pressure fuel supply pump with an intake valve member and a discharge valve member aligned along a plunger axis

In a high pressure fuel supply pump, a housing is provided with a through-hole having a step. A plunger is slidably accommodated in the through-hole on an axial end side thereof. An intake valve member is positioned in the through-hole on...		 05/23/2006
07021911 Reverse-ported pump

A pump used in vehicle controlled braking systems provides a reverse direction of flow through a cylinder bore of the pump and utilizes an inlet check valve located outside of the piston at the end of the cylinder bore opposite the...		 04/04/2006
06991438 Radial piston pump with piston rod elements in rolling contact with the pump pistons

In a piston pump for providing high-pressure fuel in a common-rail fuel injection system including a camshaft (2), which is mounted rotatably in a pump housing (1) and which has at least one eccentric cam 93) for operating a pump piston...		 01/31/2006
06764286 Piston pump with pump inlet check valve

A piston pump comprises cylinder attached within a cavity of a pump housing. An outlet check valve seat is defined about an outlet of the cylinder. A piston is slidably received in a bore of the cylinder and has a first passageway formed...		 07/20/2004
06722866 Pump system for delivering cryogenic liquids

A pump system for delivering cryogenic liquids is proposed that is suitable, for example, for refueling motor vehicles with H.sub.2. It consists of a container for receiving the cryogenic liquid, in which at least one pump is arranged...		 04/20/2004
06655933 CAM operated fuel pump with split function follower springs

In order to provide a fuel pump in which a piston spring arrangement can be made of inexpensive material, knocking noises of a piston are reduced, and components related to the piston are protected against breakdown, a piston-following...		 12/02/2003
06499974 Piston pump

A piston pump having a piston axially movable against the force of a spring within an operating chamber connected via check valves to an operating cylinder and a hydraulic medium supply. A section of the piston that extends into the...		 12/31/2002
06350107 Radial piston pump for supplying a high fuel pressure

A radial piston pump for supplying high fuel pressure in fuel injection systems of internal combustion engines that include a common rail. Pistons, which are disposed in a respective cylinder chamber, each of the pistons have a plate...		 02/26/2002
06176348 Multiple-pump system for lubricating

A lubricating system has a housing formed with an intake passage, a drive shaft extending longitudinally in the housing and carrying a plurality of longitudinally spaced worm gears, and respective pumps juxtaposed with the worm gears in...		 01/23/2001
6089141 Plunger pump for water jet loom

The straightness of the piston of a water jet loom plunger pump for discharging water under a high pressure is maintained to allow its smooth movement with respect to the cylinder. For this, a roller guide is arranged at a reciprocal...		 07/18/2000
5752430 High pressure fuel supply pump for engine

A high pressure fuel supply pump which is driven by a cam connected to an engine is composed of a cylinder, a plunger slidably disposed in the cylinder, a tappet linked to the cam, a coil spring biasing the tappet against the cam, a...		 05/19/1998