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| Number | Title | Issue Date |
| 7322804 | Metering pump device for a vehicle heater A metering pump device for a vehicle heater includes an inlet chamber, an outlet chamber, a first valve arrangement between the inlet chamber and the outlet chamber, which permits a fluid exchange substantially only from the inlet chamber to the outlet chamber, a di... | 01/29/2008 |
| 7156623 | Electric oil pump apparatus An electric oil pump apparatus includes a pump housing a drive side communicating portion, a motor housing having a pump side communicating portion communicating with the drive side communicating portion, a bearing portion arranged at one of the drive side communica... | 01/02/2007 |
| 6722866 | 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 H2. It consists of a container for receiving the cryogenic liquid, in which at least one pump is arranged that is designed as a rec... | 04/20/2004 |
| 6186118 | Integrated fuel rail and direct injection fuel pump A vehicle fuel system has an integrated fuel rail and fuel pump that supplies high pressure fuel directly to the injectors mounted on the engine. The pump is a double acting single piston pump that has two pumping chambers formed co-axially in a single ca... | 02/13/2001 |
| 5727930 | Valves and rod assembly A hollow through-bolt is threaded internally and externally, at one end, to receive therein a reciprocable, end-threaded rod. A pair of fluid-control valves, centrally bored, are mounted on the through-bolt in spaced apart disposition. The other end of th... | 03/17/1998 |
| 5577896 | Pump An object of the present invention is to provide a pump which suppresses a decrease in the volumetric efficiency of the pump to a great extent even in case that the kinematic viscosity of a fluid is high with a compact structure of the pump itself. The pr... | 11/26/1996 |
| 5163819 | Asymmetrical suction porting for swash plate compressor A swash plate compressor is disclosed having double acting pistons that reciprocate in aligned sets of horizontally extending bores of a cylinder block to compress gaseous refrigerant. An improved asymmetrical arrangement of suction or intake ports is pro... | 11/17/1992 |
| 5015158 | Gas compressor The compressor is formed of a simple, straight cylinder clamped between end headers by means of tie bolts. Confined within the cylinder are inlet valves--one at each end thereof--and inlet ports formed in the cylinder open onto these valves. A reciprocabl... | 05/14/1991 |
| 4792096 | Hose nozzle with high pressure pump A nozzle with self-contained high pressure booster pump is carried on a pistol grip handle with a small motor to drive the eccentrically-pump. A portion of the water from a conventional hose fitting flows laterally into a pump cylinder and then radially t... | 12/20/1988 |
| 4718836 | Reciprocating completely sealed fluid-tight vacuum pump A completely dry fluid-tight reciprocating vacuum pump comprises one or more pumping chambers defined between two rigid parts which face one another in the axial direction. One is reciprocated in a straight line relative to the other. They are connected t... | 01/12/1988 |
| 4679994 | Piston vacuum pump A piston vacuum pump includes a housing (40) which is extruded from aluminum to form a bore (42) for movably receiving a piston (44). The piston is made from a plastic material to define a sealing interface with the aluminum housing in the absence of addi... | 07/14/1987 |
| 4097203 | Reciprocating piston pump A pump having a body including at least two axially aligned pumping chambers each of which contains an actuator having a main central rigid portion and a peripheral sealing ring retained in a clearance space and under radial compression in non-sliding flu... | 06/27/1978 |
| 4072210 | Compressor A compressor utilizing opposing cylinders and flap valves in which the configuration may be readily modified from compressor to vacuum operation by simple reversal of components. Convertibility is facilitated by a valve plate having apertures which connec... | 02/07/1978 |
