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Class Information
Number: 123/434
Name: Internal-combustion engines > Charge forming device (e.g., pollution control)
Description: Subject matter including means for forming a mixture of fuel and an oxidant, or an accessory therefor not provided for elsewhere.










Sub-classes under this class:

Class Number Class Name Patents
123/704 Air/fuel ratio prior to combustion responsive means 74
123/443 Alternate or simultaneous lean-rich 133
123/531 Auxiliary air or gas used to inject fuel 254
123/585 Auxiliary air or oxygen added to combustible mixture 520
123/437 Auxiliary control of carburetor fuel metering 75
123/590 Charge-mixing device in intake (e.g., device which insures the atomization of the combustible mixture) 299
123/525 Combined liquid and gaseous fuel 326
123/536 Combustible mixture ionization, ozonation, or electrolysis 213
123/530 Constant flow fuel supply 11
123/540 Cooling of combustible mixture 46
123/572 Crankcase vapor used with combustible mixture 623
123/575 Diverse fuel supply 478
123/568.11 Exhaust gas used with the combustible mixture (e.g., emission control exhaust gas recirculation (egr) valve) 370
123/510 Fuel flow regulation between the pump and the charge-forming device 338
123/445 Fuel injection system 229
123/527 Gaseous fuel and air mixer 467
123/444 Having fluidic logic control means 13
123/518 Having fuel vapor recovery and storage system 378
123/543 Heating of combustible mixture 111
123/435 Including cylinder pressure or temperature responsive means 698
123/672 Including exhaust gas condition responsive means 247
123/436 Including means responsive to instantaneous change in engine speed 617
123/442 Injection or carburetion system having a series of throttle valves 106
123/523 Liquid fuel evaporating by extended fuel film 64
123/522 Liquid fuel evaporating by submerged air supply 49
123/579 Multiple carburetors 48
123/567 Oxidant is solely oxygen 17
123/559.1 Supercharger 471
123/495 With fuel pump 248


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8706383 Distributed fuel delivery system for alternative gaseous fuel applications Apr. 22, 2014
8683976 Spark plug degradation detection Apr. 1, 2014
8682566 Engine idle speed and turbocharger speed control Mar. 25, 2014
8613272 Spark-ignited gas engine Dec. 24, 2013
8578909 Control device for internal combustion engine Nov. 12, 2013
8573183 System and method for fuel tank tube routing and valve placement to prevent fuel leaks into evaporative emissions system Nov. 5, 2013
8560208 Inter-cylinder air-fuel ratio imbalance determination apparatus for internal combustion engine Oct. 15, 2013
8527182 Fuel injection amount control apparatus for internal combustion engine, control system for power unit, and fuel injection amount control method for internal combustion engine Sep. 3, 2013
8452521 Inter-cylinder air-fuel ratio imbalance determination apparatus for an internal combustion engine May. 28, 2013
8439013 Wound hydrocarbon trap May. 14, 2013
8434455 Control system for internal combustion engine May. 7, 2013
8433497 Fuel injection control apparatus for internal combustion engines Apr. 30, 2013
8428848 Combustion control systems and methods Apr. 23, 2013
8406983 Engine idle speed and turbocharger speed control Mar. 26, 2013
8352158 Method and system for compensating engine thermal conditions Jan. 8, 2013
8335630 Method and device for correlating cylinder charge and maximum intake valve lift of internal combustion engine Dec. 18, 2012
8335631 Method for accommodating extraneous loads during idle operation Dec. 18, 2012
8315778 Electronic control unit for controlling electrically driven loads in enhanced fail safe manner Nov. 20, 2012
8302581 Air-fuel ratio imbalance among cylinders determining apparatus of a multi-cylinder internal combustion engine Nov. 6, 2012
8306721 Internal combustion engine system, method of controlling internal combustion engine system, and vehicle Nov. 6, 2012
8214131 Method for controlling an internal combustion engine Jul. 3, 2012
8131446 Engine idle speed and turbocharger speed control Mar. 6, 2012
8122869 Air-fuel ratio control system of a multi-cylinder internal combustion engine Feb. 28, 2012
8126632 Engine idle speed and turbocharger speed control Feb. 28, 2012
8118009 On-board fuel vapor separation for multi-fuel vehicle Feb. 21, 2012
8108123 Sliding mode control system for internal combustion engine Jan. 31, 2012
8060292 Cetane number detection means and engine having the cetane number detection means Nov. 15, 2011
8050847 Method for operating an exhaust gas mass flow sensor Nov. 1, 2011
7987043 Fuel injection control apparatus for internal combustion engine Jul. 26, 2011
7983832 Control method of direct injection engine, controller for implementing the control method, and control circuit device used for the controller Jul. 19, 2011
7975672 Method for controlling engine intake airflow Jul. 12, 2011
7966992 Combustion control using ion sense feedback and multi-strike spark to manage high dilution and lean AFR Jun. 28, 2011
7958864 Compression ignition engines and methods Jun. 14, 2011
7962275 Control device and control method for internal combustion engine Jun. 14, 2011
7946280 Method for the operation of an internal combustion engine May. 24, 2011
7941263 Engine controller for work vehicle May. 10, 2011
7894972 Method and device for operating an internal combustion engine Feb. 22, 2011
7882822 Method for driving an electromagnetic actuator in a diaphragm carburettor for control of air/fuel ratio Feb. 8, 2011
7869912 Controlling device of hybrid vehicle Jan. 11, 2011
7853398 Fuel pressure control apparatus for an internal combustion engine Dec. 14, 2010
7831372 Fuel injection control method of engine and fuel injection control device for same Nov. 9, 2010
7805235 System and method for controlling a flow of intake air entering an internal combustion engine Sep. 28, 2010
7793638 Low emission high performance engines, multiple cylinder engines and operating methods Sep. 14, 2010
7785548 Apparatus and method for storing and releasing sulfur containing aromatic compounds from a fuel stream of an internal combustion engine Aug. 31, 2010
7788018 Method for controlling an internal combustion engine Aug. 31, 2010
7765983 Method and device for controlling an internal combustion engine Aug. 3, 2010
7761218 Air-fuel ratio control method of engine and air-fuel ratio control apparatus for same Jul. 20, 2010
7753029 Multi-cylinder internal combustion engine with independent cylinders Jul. 13, 2010
7748363 Multi-cylinder internal combustion engine with independent cylinders Jul. 6, 2010
7721711 Engine control system including means for learning characteristics of individual fuel injectors May. 25, 2010

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