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Class Information
Number: 123/574
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > Crankcase vapor used with combustible mixture > Specific control valve (e.g., pcv valve)
Description: Subject matter wherein said means include a valve having a specifically disclosed construction.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8695339 Blowby flow control system for a turbocharged engine Apr. 15, 2014
8683987 Light turbo compound engine variant Apr. 1, 2014
8651093 Sludge adhesion inhibiting structure for internal combustion engine Feb. 18, 2014
8627809 Engine lubrication method Jan. 14, 2014
8607768 System for improving engine crankcase ventilation Dec. 17, 2013
8517002 Apparatus for anti-freezing PCV Aug. 27, 2013
8511291 Positive crankcase ventilation system, cylinder head used for positive crankcase ventilation system, internal combustion engine including positive crankcase ventilation system, and positive cr Aug. 20, 2013
8505522 PCV valve Aug. 13, 2013
8499750 Oil mist separator for internal combustion engine Aug. 6, 2013
8499749 Aerosol separator; components; and, methods Aug. 6, 2013
8495994 Separator for crank housing ventilation of an internal combustion engine Jul. 30, 2013
8485145 Breather air--oil seperator Jul. 16, 2013
8485164 Oil mist separator Jul. 16, 2013
8439022 Ventilation device for a forced induction internal combustion engine May. 14, 2013
8439013 Wound hydrocarbon trap May. 14, 2013
8434434 Crankcase blow-by gas treatment assembly and method of treating blow-by gas May. 7, 2013
8393306 Internal combustion engine oil tank arrangement Mar. 12, 2013
8393315 Crank case ventilator Mar. 12, 2013
8381706 Head cover of an internal combustion engine Feb. 26, 2013
8371279 Crankcase pressure regulator for an internal combustion engine Feb. 12, 2013
8370048 Pollution control system Feb. 5, 2013
8360037 Oil separation apparatus for blow-by gas Jan. 29, 2013
8360038 Pollution control system Jan. 29, 2013
8356587 PCV valve guide Jan. 22, 2013
8347865 System and method for returning oil separated from engine crankcase gases Jan. 8, 2013
8336529 Vapor-liquid separating structure Dec. 25, 2012
8333179 Method for taking the outgassing of fuel from the engine oil of an internal combustion engine into account Dec. 18, 2012
8316831 Control device for internal combustion engine and control method for internal combustion engine Nov. 27, 2012
8307815 Crankcase ventilation filter assembly Nov. 13, 2012
8297264 Adaptive pressure control valve with variable switching point Oct. 30, 2012
8205447 Intercooler deicing Jun. 26, 2012
8205604 Crankcase vent nozzle for internal combustion engine Jun. 26, 2012
8191539 Wound hydrocarbon trap Jun. 5, 2012
8191537 Crankcase ventilation system with variable blower for increased efficiency Jun. 5, 2012
8181635 Breather device for engine May. 22, 2012
8171923 Cylinder head lubricating structure for engine May. 8, 2012
8151775 High vacuum crankcase ventilation Apr. 10, 2012
8123829 Gas-liquid separation device of engine Feb. 28, 2012
8118013 Resonator and crankcase ventilation system for internal combustion engine Feb. 21, 2012
8087403 Heating apparatus of electromagnetic PCV valve Jan. 3, 2012
8047185 Variable venturi system and method for engine Nov. 1, 2011
7992548 Crankcase vapor management system Aug. 9, 2011
7918196 Vertical type engine Apr. 5, 2011
7900612 Valve and cylinder head cover for crankcase ventilation of an internal combustion engine Mar. 8, 2011
7886727 Variable venturi system and method for engine Feb. 15, 2011
7842115 Oil separator arrangement and cylinder head cover for an internal combustion engine Nov. 30, 2010
7799109 Device for separating a gas-liquid mixture Sep. 21, 2010
7779794 Breather device and engine Aug. 24, 2010
7775198 Two-way PCV valve for turbocharged engine PCV system Aug. 17, 2010
7757680 Closed crankcase ventilation apparatus Jul. 20, 2010

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