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| Number | Title | Issue Date |
| 7918656 | Suction throttle valve of a compressor A suction throttle valve of a compressor has a compressor housing having a suction chamber and a crank chamber. The suction throttle valve includes a suction passage formed in the housing, a suction port provided at an inlet of the suction passage, a valve body mova... | 04/05/2011 |
| 7399169 | Compressor The invention provides a compressor that can reduce occurrence of vibration and noise due to self-induced vibration of an suction valve at the time of a low flow rate surely with an inexpensive structure. In the compressor according to the invention, an opening regu... | 07/15/2008 |
| 7318709 | Pump valve assembly A valve assembly is disclosed generally comprising first and second valve plates mounted between the housing for a pump mechanism and a cover, the first plate having flexing flaps corresponding to apertures in the second plate, and the second plate having flexing fl... | 01/15/2008 |
| 7314351 | Fuel supply pump capable of lubricating cam bearings A fuel supply pump uses a low-pressure supply pump for pumping up a low-pressure fuel, and a pump element having a plunger for increasing pressure of the low-pressure fuel supplied by the low-pressure supply pump. Part of the low-pressure fuel discharged from the lo... | 01/01/2008 |
| 7303379 | Horizontal type compressor and automobile air conditioner equipped with the same An object is to execute sure oil supplying to a second rotary compression element in a horizontal type compressor equipped with the second rotary compression element in which pressure becomes higher than that in an airtight container. A horizontal type rotary compre... | 12/04/2007 |
| 7293966 | Variable capacity rotary compressor A variable capacity rotary compressor including a housing, the housing including two compression chambers, the two compression chambers having different capacities; a rotating shaft rotatably provided in the two compression chambers; two eccentric units respectively... | 11/13/2007 |
| 7237474 | Reciprocating pump A piston pump for an electronically controllable vehicle brake system including a particularly simple, inexpensive, and space-saving throttle, and a filter hydraulically upstream of it, which prevents the throttle from becoming clogged with impurities. The pressure ... | 07/03/2007 |
| 7153106 | Air compressor unit inlet control A portable electric motor driven reciprocating air compressor unit has a compression cylinder having a piston that reciprocates in the cylinder. The piston is driven by an electric motor that is attached to an electrical circuit having a predeterminable current capa... | 12/26/2006 |
| 7144230 | Pulse fuel pump for a diaphragm carburetor A device that corrects with ease and high precision any deviation of the fuel flow rate due to variation in the constituent components of a carburetor, and to improve the exhaust condition and operability of an engine. A carburetor in which the delivery channel 2... | 12/05/2006 |
| 7118350 | Radial piston pump The invention relates to a radial piston pump unit for a high pressure injection system with a pump housing in which a driveshaft with an eccentric section is mounted. A reciprocating ring sits on the above section and drives at least one spring-loaded piston which ... | 10/10/2006 |
| 7086841 | Air compressor with inlet control mechanism and automatic inlet control mechanism An automatic inlet control mechanism and air compressor unit include a valve cavity and valve outlet. The valve cavity includes a valve control chamber and valve inlet chamber. A valve piston assembly is positioned between the valve control chamber and the valve inl... | 08/08/2006 |
| 7059838 | Control device for positive displacement pumps A control device for a positive displacement pump includes a throttle device and a flow control valve. The flow control valve includes a flow control piston and is configured to regulate an unrequired excess flow of the pump at an increased speed. The throttle devic... | 06/13/2006 |
| 7052243 | Pressure regulating valve A pressure maintenance assembly for a domestic water well system. The assembly comprises a pressure maintenance valve having an inlet side and an outlet side, a pressure tank in fluidic communication with the outlet side, and a calibrated bypass. When the valve is c... | 05/30/2006 |
| 7048801 | Chemical pump and method of discharging chemical solution A chemical pump includes a pressure chamber, a partition member for dividing the pressure chamber into a cleaning pressure chamber and a discharging pressure chamber, a filter part disposed on the primary side of the discharging pressure chamber, and a single drive ... | 05/23/2006 |
| 7011507 | Positive displacement pump with a combined inertance value of the inlet flow path smaller than that of the outlet flow path A pump according to the present invention has a circular diaphragm 4 placed at the bottom of a casing 2. At the bottom of the diaphragm 4, a piezoelectric element 6 is installed in contact with the diaphragm 4. A narrow space betwe... | 03/14/2006 |
| 6976977 | Vacuum setting and indication system for a drainage device A drainage device comprising an improved vacuum regulator assembly is disclosed which includes an adjustable knob for indicating the degree of vacuum being applied to the device from a number of incident viewing angles. Similarly, a vacuum indicator assembly is prov... | 12/20/2005 |
| 6971857 | Fuel injection pump A fuel injection pump prevents the uninterrupted supply of fuel through an orifice to a cam chamber. An orifice inlet is formed on the same plane as a wall surface of a discharge fuel chamber. As a result, foreign substances, which are carried with the flow of the f... | 12/06/2005 |
| 6960180 | Valve obturator An obturator prevents the tips or flaps of a duck-bill valve from self-adhering during storage or during sterilization procedures. The obturator holds the tips apart until the end-user is ready to use the valve. The duck-bill valve is used as an air outlet valve in ... | 11/01/2005 |
| 6942472 | Head pressure relief assembly A head pressure relief assembly for relieving pressure in the head assembly of an air compressor may include an exhaust valve post formed in the head assembly and an exhaust valve assembly comprised of a flapper valve. An aperture may be formed through the exhaust v... | 09/13/2005 |
| 6874997 | Pump system using a control fluid to drive a switching valve mechanism for an actuating fluid There is provided a pump system excellent in a maintenance ability and compatibility. The pump system comprises a pump (1) for transferring a liquid by alternately supplying air to air chambers (17a, 17b) to extend and contract a p... | 04/05/2005 |
| 6866490 | Water-injected screw compressor The invention relates to a water-injected screw compressor which comprises a compressor element (1) with an interior space (3), a suction conduit (7) which connects to an inlet part (6), situated at the top of this interior space (3 | 03/15/2005 |
| 6846164 | Multi-cylinder compressor having plural intake ports in a bearing plate and a cover member forming a sealed space over the bearing plate The purpose of the present invention is to provide a multi-cylinder compressor permitting to increase a gas inflow into the housing without enlarging the intake ports of the bearing plate. The bearing plate 12 bearing the crankshaft 9 is provided with ... | 01/25/2005 |
| 6814553 | Dual reciprocating bellows pump, with a pair of interlocking shafts passing through a common pump head and dual pump chambers The present invention is to provide a dual reciprocating bellows pump which can facilitate size reduction design of the whole pump, permit pump manufacture at low cost, and permit reducing the dead spaces in pumping chambers to provide improved self-suction performa... | 11/09/2004 |
| 6796778 | Fuel injection pump having throttled fuel path for fuel lubrication In a fuel path through which fuel is supplied to a pump-cam chamber accommodating a drive shaft and a cam for lubrication, an annular throttle fuel path is formed between an inside wall of a cylindrical body and an outside wall of a sphere, when the sphere is in con... | 09/28/2004 |
| 6769449 | Water booster methods and apparatus Water is first caused to flow through a first passage and rotate a first impeller. Rotation of the first impeller is linked to rotation of a second impeller, which is in fluid communication with a second, discrete passage. Vanes on the second impeller are constraine... | 08/03/2004 |
| 6755625 | Inlet throttle valve An inlet throttle valve for supplying liquid to a high-pressure pump has a fully open start position and an operating range where flow through the valve is determined by a pressure balance of a valving member independent of the pressure of oil supplied to the inlet ... | 06/29/2004 |
| 6725844 | High-pressure pump with an on-off valve for feeding fuel to an internal combustion engine The pump has a body including at least a fuel compression chamber and an actuating chamber enclosing the actuating members of the pump. The on-off valve has a shutter sliding inside a hole in the body to close a fuel feed conduit. The shutter is held in the closed p... | 04/27/2004 |
| 6676388 | Gas compression apparatus for reciprocating compressor A gas compression apparatus for a reciprocating compressor includes a reciprocating motor generating a linear reciprocal driving force, a compressing cylinder positioned within a predetermined distance from the reciprocating motor, a position controlling ... | 01/13/2004 |
| 6668863 | Throttle element with gap filter A throttle element with a gap filter for use in a fuel pump is proposed, which is press-fitted into a conduit in the housing of an injection pump. By means of the press fitting, a good sealing action and at the same time low-cost production and mounting a... | 12/30/2003 |
| 6582209 | Fuel injection system for internal combustion engines A fuel injection system for internal combustion engines essentially has a high-pressure injection pump, supplied with fuel from a low-pressure region, and a magnetic piston valve serving to control the injection pump. The magnetic valve having two coaxial... | 06/24/2003 |
| 6558130 | Two-way manually operated pump structure A two-way manually operated pump structure consisting of a pump body, a nozzle mount, a control ring mount, and other structural components that are assembled together, in which rotating the control ring mount shifts the air direction between them and the... | 05/06/2003 |
| 6553971 | High-pressure pump with an on-off valve for feeding fuel to an internal combustion engine The pump has a body including at least a fuel compression chamber and an actuating chamber enclosing the actuating members of the pump. The on-off valve has a shutter sliding inside a hole in the body to close a fuel feed conduit. The shutter is held in t... | 04/29/2003 |
| 6533556 | Pressure balanced hydraulic pumps A hydraulic pump has a pair of inlets each with a pair of outlets. The inlets and outlets are arranged to balance the forces on the motor. The flow from the outlets of each pair may be combined to maximize flow or separated to reduce power consumption by ... | 03/18/2003 |
| 6520756 | Piston pump The invention relates to a piston pump for a vehicle brake system, in particular a slip-controlled hydraulic vehicle brake system. For damping pressure pulsations, the invention proposes proving a throttle, as a place of narrowed cross section, in an outl... | 02/18/2003 |
| 6481986 | Vacuum adjustment mechanism particularly adapted for a breastpump An improved vacuum adjustment mechanism for controlling airflow into a chamber which is subject to negative pressure, such as the chamber of a diaphragm pump which is generating vacuum for a breast shield assembly, has an air inlet conduit communicating w... | 11/19/2002 |
| 6450146 | High pressure pump with a close-mounted valve for a hydraulic fuel system This invention provides a pump with a close-mounted valve for a hydraulic fuel system in an internal combustion engine. The hydraulic fuel system may have a high pressure pump connected to a low pressure side and high pressure reservoirs. The pump has a d... | 09/17/2002 |
| 6443887 | Switch based spontaneous inflation inhibitor in a pump for an inflation prosthesis A pump assembly for a penile implant is provided having a mechanism that prevents spontaneous inflation of the cylinders implanted within the patient. The preventative mechanism includes a switching mechanism for moving a valve into either a closed or an ... | 09/03/2002 |
| 6406278 | High-pressure pump with a removable on-off valve for feeding fuel to an internal combustion engine The pump has a body including at least a fuel compression chamber and an actuating chamber enclosing the actuating members of the pump; the on-off valve is defined by an independent operating assembly insertable in fluidtight manner inside a hole in the b... | 06/18/2002 |
| 6379131 | Scroll type compressor A scroll type compressor includes a fixed scroll member and an orbital scroll member disposed within a housing for defining a compression pocket compressing refrigerant gas, an open portion provided on the fixed scroll member at a position corresponding t... | 04/30/2002 |
| 6367961 | Apparatus for making an emulsion An apparatus for making a sterile emulsion, comprising a fluid pathway, a pumping bore, a reciprocable (reciprocal) member, and a valve body. The pumping bore being in fluid communication with the fluid pathway and having a reciprocable member reciprocabl... | 04/09/2002 |
