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Class Information
Number: 417/494
Name: Pumps > Expansible chamber type > Pumping member position controlled port > Including plural controlled inlet or outlet flow paths > Having means to selectively effect control at different positions of pumping member stroke
Description: Apparatus including means which may be selectively moved and held in different positions to effect control of said pumping member controlled port at different times in the pumping member stroke.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8656891 Horizontal control surface for a fuel injector Feb. 25, 2014
8435214 Adhesive and peripheral systems and methods for medical devices May. 7, 2013
8297239 Gyroscopic rotary engine Oct. 30, 2012
7819107 Pumping element for a fluid pump and method Oct. 26, 2010
RE40898 Lubricating device for a plurality of lubricating stations Sep. 1, 2009
7412971 Selectively detachable helix ring for a fuel injector Aug. 19, 2008
6634871 Suction-discharge device for fluids comprising a piston within a rotating inner tube and a plurality of suction and discharge holes Oct. 21, 2003
6322336 Lubricating device for a plurality of lubricating stations Nov. 27, 2001
6257052 Pump, sample feed and valving for high performance liquid chromatography (HPLC) Jul. 10, 2001
6065816 Brake control apparatus for a vehicle May. 23, 2000
6009850 High-pressure dual-feed-rate injector pump with grooved port-closing edge Jan. 4, 2000
5603609 Variable delivery swash plate pump having a piston located spill port Feb. 18, 1997
5591021 Fuel-injection pump for internal combustion engines Jan. 7, 1997
5482448 Positive displacement pump with concentrically arranged reciprocating-rotating pistons Jan. 9, 1996
5464334 Fuel injection pump Nov. 7, 1995
5396871 Fuel injection pump for internal combustion engines Mar. 14, 1995
5266014 Prestroke adjustment mechanism for fuel injection pump Nov. 30, 1993
5211549 Fuel injection pump May. 18, 1993
5178110 Fuel injection device for internal combustion engines Jan. 12, 1993
5135367 Fuel injector Aug. 4, 1992
5097812 Sloping-edge-controlled fuel injection pump for internal combustion-engine Mar. 24, 1992
5080564 Prestroke control device for fuel injection pumps Jan. 14, 1992
5044889 Phase adjustable metering pump, and method of adjusting the flow rate thereof Sep. 3, 1991
5032066 Control device for a fuel injection pump Jul. 16, 1991
5000668 Distribution-type fuel injection pump Mar. 19, 1991
4975029 Fuel injection pump for an internal combustion engine having pre-injection and main injection Dec. 4, 1990
4964789 Fuel injection pump for internal combustion engines Oct. 23, 1990
4960241 Diesel engine pump nozzle having a control sleeve Oct. 2, 1990
4957418 Injection pump for internal combustion engines Sep. 18, 1990
4897024 Fuel injection pump for internal combustion engines Jan. 30, 1990
4881506 Injection pump with preinjection Nov. 21, 1989
4757794 Injection system for a valve of a diesel engine Jul. 19, 1988
4741314 Fuel injection pump for internal combustion engine May. 3, 1988
4737085 Fuel injection pump for internal combustion engines Apr. 12, 1988
4712985 Diesel engine fuel injection pump capable of injection timing adjustment Dec. 15, 1987
4708114 Fuel injection pump for internal combustion engines Nov. 24, 1987
4705005 Fuel injection pump for internal combustion engines Nov. 10, 1987
4586480 Electronically controlled distributor type fuel injection pump May. 6, 1986
4528965 Rotor balancing for distribution valve Jul. 16, 1985
4526149 Fuel injection apparatus for internal combustion engines Jul. 2, 1985
4526150 Fuel injection apparatus for internal combustion engines Jul. 2, 1985
4520774 Fuel injection apparatus with pilot injection and main injection in internal combustion engines Jun. 4, 1985
4426198 Fuel-injection pump for internal combustion engine Jan. 17, 1984
4424005 Method and apparatus for controlling the capacity of a reciprocating compressor Jan. 3, 1984
4413600 Distributor type fuel injection pump adapted for partial cylinder operation of an internal combustion engine Nov. 8, 1983
4355961 Controlling means for a fuel valve Oct. 26, 1982
4229148 Fuel injection pump Oct. 21, 1980
4211520 Timing control for sleeve metering fuel system Jul. 8, 1980
4165723 Fuel injection pump for internal combustion engines Aug. 28, 1979
4127366 Fuel injection pump assembly for diesel engine Nov. 28, 1978

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