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Class Information
Number: 123/510
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > Fuel flow regulation between the pump and the charge-forming device
Description: Subject matter having regulator means located in a fuel flow path between a pump discharge and a charge-forming device (e.g., carburetor) to modify or control the fuel pressure or rate of flow to said device.


Sub-classes under this class:

Class Number Class Name Patents
123/516 Air or fuel vapor purging system 625
123/517 Carburetor float bowl drain 8
123/514 Excess fuel returned to tank 597
123/515 Regulator controls flow of a plurality of fuels 20
123/511 Regulator means adjusts fuel pressure 88


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
7617814 Fuel pump module having a direct mounted jet pump and methods of assembly Nov. 17, 2009
7594499 Fuel feed apparatus and accumulator fuel injection system having the same Sep. 29, 2009
7578283 System for selectively increasing fuel pressure in a fuel injection system Aug. 25, 2009
7568468 Method for operating an internal combustion engine Aug. 4, 2009
7549410 Fuel injection system suitable for low-viscosity fuels Jun. 23, 2009
7527043 Liquid fuel system with anti-drainback valve and engine using same May. 5, 2009
7523746 Fuel delivery module for low installation height applications Apr. 28, 2009
7513243 Fuel supply apparatus for motor cycle Apr. 7, 2009
7506637 Fuel feed apparatus Mar. 24, 2009
7487759 Flow damper Feb. 10, 2009
7481203 Pump space/dampening structure for fuel delivery system Jan. 27, 2009
7448364 Fuel cutoff valve and breather pipe Nov. 11, 2008
7444995 Fuel line check valve system for relief of diurnal pressure Nov. 4, 2008
7410022 Fuel pickup return line and separator Aug. 12, 2008
7406954 Fuel pump check valve Aug. 5, 2008
7404388 System for automatically changing fuel passages Jul. 29, 2008
7383822 Fuel pump module for electronic returnless fuel system Jun. 10, 2008
7370640 Fuel feed unit May. 13, 2008
7318414 Constant-speed multi-pressure fuel injection system for improved dynamic range in internal combustion engine Jan. 15, 2008
7318846 Mixture formation means for a reformer of a fuel cell system or for a heater Jan. 15, 2008
7306715 Pump module Dec. 11, 2007
7303378 Apparatus for delivering fuel from a tank to an internal combustion engine Dec. 4, 2007
7299791 Pump spacer/dampening structure for fuel delivery system Nov. 27, 2007
7281524 Device for delivering fuel from a reservoir to an internal combustion engine Oct. 16, 2007
7278408 Returnless fuel system module Oct. 9, 2007
7246607 Three position fuel line check valve for relief of diurnal pressure Jul. 24, 2007
RE39599 Fuel supply apparatus May. 1, 2007
7210465 Fuel supply device for fuel returnless system May. 1, 2007
7210463 Pump, especially for a fuel injection device for an internal combustion engine May. 1, 2007
7201153 Fuel injection system for an internal combustion engine Apr. 10, 2007
RE39507 Fuel supply system Mar. 13, 2007
7185682 Fuel flange assembly for a vehicle fuel system Mar. 6, 2007
7178511 Apparatus for controlling a pressure in a fuel inflow line Feb. 20, 2007
7163003 Fuel system Jan. 16, 2007
7150270 Arrangement for handling the fuel supply in a common rail fuel injection system Dec. 19, 2006
7150269 Fuel pump module having a fuel filter water drain Dec. 19, 2006
7128054 Fuel injection system for an internal combustion engine Oct. 31, 2006
7121266 Fuel pump cutoff shuttle valve Oct. 17, 2006
7117855 Diesel reservoir ice bypass valve Oct. 10, 2006
7086388 Combination valve for fuel system Aug. 8, 2006
7077108 Fuel injection apparatus Jul. 18, 2006
7069912 Fuel filter and fuel supply system Jul. 4, 2006
7040299 Fuel system May. 9, 2006
7013872 Fuel injector for internal combustion engine Mar. 21, 2006
7007678 In-tank fuel filter Mar. 7, 2006
6997168 Fuel supply system for internal combustion engines with improved filling of the fuel line Feb. 14, 2006
6983762 Pressure regulator for a fuel supply system of an internal combustion engine Jan. 10, 2006
6966305 Fuel delivery assembly for vehicles Nov. 22, 2005
6964266 3/2 Directional-control valve Nov. 15, 2005
6964265 Connecting structure of fuel filter and fuel pump Nov. 15, 2005

1 2 3 4 5 6


 
 
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