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Class Information
Number: 123/506
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > With fuel pump > Having pressure relief valve
Description: Subject matter wherein valve means is provided to relieve the pump output pressure under certain conditions.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8701631 Pressure relief valve and high pressure pump with such valve Apr. 22, 2014
8677977 Direct injection pump control strategy for noise reduction Mar. 25, 2014
8656892 High-pressure pump Feb. 25, 2014
8608456 High pressure pump Dec. 17, 2013
8555861 Fuel pump apparatus Oct. 15, 2013
8442745 Fuel supply apparatus for internal combustion engine and control method thereof May. 14, 2013
8430081 Direct-injection system fuel pump with a maximum-pressure valve Apr. 30, 2013
8333178 Control valve arrangement Dec. 18, 2012
8136508 Selective displacement control of multi-plunger fuel pump Mar. 20, 2012
8091530 High pressure fuel pump control for idle tick reduction Jan. 10, 2012
8079345 High pressure fuel supply control system for internal combustion engine Dec. 20, 2011
8033268 Asynchronous control of high-pressure pump for direct injection engines Oct. 11, 2011
8015964 Selective displacement control of multi-plunger fuel pump Sep. 13, 2011
8011350 High pressure fuel pump control apparatus for an internal combustion engine Sep. 6, 2011
8006673 Fuel injection pump Aug. 30, 2011
7909023 Fuel supply systems Mar. 22, 2011
7878181 Fuel delivery module regulator valve Feb. 1, 2011
7877194 Diagnosis method for solenoid valve based on noise detection Jan. 25, 2011
7827967 Low noise fuel pump with variable pressure regulation Nov. 9, 2010
7814890 Injection means for a combustion engine Oct. 19, 2010
7793642 Fuel supply apparatus Sep. 14, 2010
7762238 Sleeve metered unit pump and fuel injection system using the same Jul. 27, 2010
7757673 Three position fuel line check valve for relief of diurnal pressure Jul. 20, 2010
7740006 Fuel-feeding devices Jun. 22, 2010
7726284 Fuel supply system of internal combustion engine Jun. 1, 2010
7717089 High pressure pump having solenoid actuator May. 18, 2010
7707996 High pressure fuel supply pump for internal combustion engine May. 4, 2010
7690361 System and method for metering fuel in a high pressure pump system Apr. 6, 2010
7634986 Fuel supply system having fuel filter installed downstream of feed pump Dec. 22, 2009
7574995 Fuel injection system Aug. 18, 2009
7559314 Method for controlling a fuel injector Jul. 14, 2009
7552720 Fuel pump control for a direct injection internal combustion engine Jun. 30, 2009
7549410 Fuel injection system suitable for low-viscosity fuels Jun. 23, 2009
7546832 Control device of high-pressure fuel pump of internal combustion engine Jun. 16, 2009
7546831 Fuel injection apparatus for engines and method of operating the engine equipped with the apparatus Jun. 16, 2009
7540274 High pressure fuel supply pump for internal combustion engine Jun. 2, 2009
7520266 Fuel injector control system and method Apr. 21, 2009
7517200 Variable discharge fuel pump Apr. 14, 2009
7509948 Variable displacement pump with an anti-stiction device Mar. 31, 2009
7490592 Fuel injection apparatus for engine and method of operating the engine equipped with the apparatus Feb. 17, 2009
7451741 High-pressure pump Nov. 18, 2008
7451038 Method for detecting the opening of a passive pressure limiting valve Nov. 11, 2008
7444988 Accumulation-volume fuel injection system for an internal-combustion engine Nov. 4, 2008
7444989 Opposed pumping load high pressure common rail fuel pump Nov. 4, 2008
7428894 Fuel pressure controller Sep. 30, 2008
7415973 Fuel injection pump equipped with rotary deflector Aug. 26, 2008
7412969 Direct needle control fuel injectors and methods Aug. 19, 2008
7413160 Method for determining a closing time of a closing element and circuit arrangement Aug. 19, 2008
7406949 Selective displacement control of multi-plunger fuel pump Aug. 5, 2008
7398768 Electromagnetic drive mechanism and a high-pressure fuel supply pump Jul. 15, 2008

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