Matches 101 - 150 out of 204 < 1 2 3 4 5 >
Match Document Document Title
5278762 Engine control apparatus using exhaust gas temperature to control fuel mixture and spark timing  
An engine control apparatus for changing the air/fuel ratio of an air-fuel mixture supplied to the engine to a richer value each time the exhaust gas temperature exceeds a target value while the...
5243949 Diagnostic device for exhaust gas recirculation device  
A diagnostic device for an exhaust gas recirculation device comprising an exhaust gas recirculation control valve. When the temperature of the engine cooling water exceeds a predetermined...
5241940 Automotive EGR system  
An automotive exhaust gas recirculating (EGR) system contains a pressure sensor responsive to the changes in exhaust manifold gas pressure to control the movement of an EGR valve. A water vapor/ice...
5239965 Fuel injection control apparatus for internal combustion engine  
A fuel injection control apparatus includes a detection part for detecting whether or not an internal combustion engine is operating in prescribed high load conditions, a fuel injection control...
5216881 Arrangement for determining the engine speed and an additional operating characteristic variable of an internal combustion engine by means of a sensor  
The invention relates to an arrangement which permits operating characteristic variables such as the crankshaft rotational speed and the content of exhaust gas components to be determined in the...
5215068 Two cycle internal combustion engine with multple cylinder fuel injection  
In a fuel injected internal combustion engine, the fuel injection is based on computation rather than direct measurement of air intake. To correct for air intake volume changes caused by external...
5203312 Exhaust gas recirculation system for internal combustion engine  
An exhaust gas recirculation system for an automotive internal combustion engine includes an exhaust gas recirculation control valve disposed in an exhaust gas recirculation passage connecting...
5193513 Misfire detection in an internal combustion engine using exhaust pressure  
Misfiring of individual cylinders in an internal combustion engine is detected based on sensing exhaust pressure during each operating cycle of the engine. A pressure signal is sampled and...
5190017 Exhaust gas recirculation system fault detector  
The method for determining a fault in an exhaust gas recirculation system includes comparing the measured exhaust gas flow of the EGR system to an expected exhaust gas recirculation flow. If the...
5158063 Air-fuel ratio control method for internal combustion engines  
An air-fuel ratio control method for an internal combustion engine. The air-fuel ratio of an air-fuel mixture supplied to the engine is feedback-controlled to a predetermined value in response to...
5131371 Method and arrangement for controlling a self-igniting internal combustion engine  
The invention is directed to a method and arrangement for controlling a self-igniting internal combustion engine. The arrangement includes at least one measured-value sensor, electronic control...
5115780 Arrangement for restricting the temperature of combustion engine exhaust gases  
Device for limiting the exhaust gas temperature in an internal combustion engine consisting of a thermoelement (2) protruding into the engine exhaust manifold (1) and an electronic control unit (3)...
5107432 System for protection of automotive exhaust gas combustion devices  
A system for protecting the catalytic exhaust gas combustion devices of an automotive engine featuring two sets of cylinders, which system has, for each set of cylinders: a first sensor housed in...
5103791 Fuel supply control system for internal combustion engine with feature of exhaust temperature responsive enrichment  
A fuel supply control system for an internal combustion engine sets an amount of heat generated within a combustion chamber at least based on an engine load condition, and a reference temperature...
5050551 System for controlling ignition timing and fuel injection timing of a two-cycle engine  
A temperature sensor is provided for detecting temperature of exhaust gas in an exhaust passage of a two-cycle engine. The temperature is compared with a reference temperature for activating a...
5036470 Method and apparatus for determining high temperature state of air-fuel ratio sensor  
In an internal combustion engine having an air-fuel ration sensor, a lean-side extreme value of the output of the air-fuel ration sensor is calculated when the air-fuel ratio is lean, and a...
5002031 Fuel control apparatus for an internal-combustion engine  
A fuel control apparatus for an internal-combustion engine, capable of accurately determining fuel injection quantity according to exhaust gas recirculation rate regardless of bypass air flow rate...
4986232 Arrangement for recognizing misfirings in internal combustion engines with externally controlled ignition  
An arrangement for the recognition of misfirings of internal combustion engines with externally supplied ignition in which for the recognition of misfirings, the cylinders are combined into two...
4971010 Method and apparatus for misfiring detection and control in an internal combustion engine  
A control apparatus for an internal combustion engine has a misfiring sensor 1 which senses the number of cylinders which are not firing based on the exhaust gas temperature of the engine. When the...
4953351 Combustion control  
A method for controlling the combustion air ratios for IC engines using a three way catalyst. In known systems the control operation has been impaired by several factors, one being the aging of the...
4890593 Fuel injection control system for an internal combustion engine  
A fuel injection system for an internal combustion engine utilizing output signals from existing "dual magneto" ignition system to produce output pulses in synchronism with the revolution of the...
4879986 Malfunction detection of an engine exhaust gas recirculation system  
Malfunctions in an exhaust gas recirculation system, particularly on manual transmission vehicles which may be accelerated during a startup period with a rapid succession of upshifts during which...
4870942 Diagnosis device for exhaust gas recycling device of internal combustion engine  
A diagnosis device for an exhaust gas recycling device diagnoses whether or not an exhaust gas recycling device is operating normally; the temperature of an exhaust gas recycling passage is...
4870941 Exhaust gas recirculation system for internal combustion engine  
An automotive vehicle is equipped with an exhaust gas recirculation system in which a part of exhaust gas is recirculated back to the combustion chambers of the engine. The exhaust gas...
4834054 Method of detecting a fault of an exhaust gas recirculation system  
A method of detecting a fault of an exhaust gas recirculation system of an internal combustion engine, comprising detecting a temperature relating to a temperature of a gas recirculating through...
4825841 Diagnosis device for an internal combustion engine exhaust gas recycling device  
A diagnosis device of an exhaust gas recycling device of an internal combustion engine checks operating conditions of the engine and determines whether the engine is operating with performance of...
4793318 Diagnostic system for exhaust gas recirculation device  
A diagnostic system of an EGR device comprising an EGR control valve in an EGR passage, and a temperature sensor arranged in the EGR passage downstream of the EGR control valve. A counter which is...
4683854 Electronic and mechanical fuel supply system  
An electronic and mechanical fuel feeding system comprises a mechanical fuel induction system coupled with an electronic fuel injection system through a diverter valve in fluid communication with a...
4643147 Electronic fuel injection with fuel optimization and exhaust pressure feedback  
An electronically controlled fuel-injection system for an internal combustion engine, wherein fuel injection control pulses drive associated fuel injectors for delivering fuel to the internal...
4561403 Air-fuel ratio control apparatus for internal combustion engines  
A control apparatus includes an air-fuel ratio sensor for detecting an oxygen content over a wide range of operating conditions from a light load operation to a high load operation of an engine and...
4509485 Method and device for back pressure-dependent correction of air/fuel ratio for internal combustion engines  
A method comprising correcting the air/fuel ratio of a mixture being supplied to an internal combustion engine, by the use of a correction coefficient determined as a function of detected values of...
4462376 Method and apparatus for determining and controlling the exhaust gas recirculation rate in internal combustion engines  
A method and an apparatus are proposed for determining and controlling an exhaust gas recirculation rate in internal combustion engines (Diesel engines), wherein an adjusting member in the exhaust...
4453379 Exhaust gas recirculation system for an internal combustion engine  
An exhaust gas recirculation system is applied to an internal combustion engine having a combustion chamber and an exhaust passage conducting exhaust gas from the combustion chamber to the...
4452207 Fuel/air ratio control apparatus for a reciprocating aircraft engine  
A fuel/air ratio control apparatus for a reciprocating engine used in light aircraft including a fuel metering apparatus (32) and a fuel/air ratio controller (40). The controller (40) generates an...
4433654 Knock control device for internal combustion engine  
A knock control device having a knock detecting means and an ignition timing control means is provided with a temperature sensor for detecting the temperature of the exhaust system of an internal...
4408585 Fuel control system  
A fuel control system for a spark ignition internal combustion engine of the type having a source of fuel and a pump for supplying the fuel from the fuel source and to the engine at variable flow...
4400944 Air-fuel ratio control method and apparatus for internal combustion engines  
The temperature and air-fuel ratio of the exhaust gases of an internal combustion engine are sensed to generate signals indicative thereof and the amount of fuel to be injected into the engine is...
4397289 Self-calibrating exhaust gas recirculation system  
A motor vehicle combustion engine has an exhaust gas recirculation system in which the flow of recirculated exhaust gas is controlled through an orifice having exhaust back pressure on one side and...
4393838 Thermal and vacuum tracking carburetor jet with electronic control  
A Thermal and Vacuum Tracking Carburetor With Jet Electronic Control System which allows the continuous monitoring of the temperature of the exhaust gas and the manifold vacuum of an internal...
4392470 Temperature responsive open/closed loop switching for lambda control  
A regulating device is described for regulating or adjusting the composition of the operating mixture of an internal combustion engine. When the engine or exhaust gas probe is still cold, the...
4364364 Air-fuel ratio controller  
An air-fuel ratio controller adjusts the pressure of gaseous hydrocarbon fuel delivered to an internal combustion engine in order to minimize the emission of undesirable gases, specifically carbon...
4319451 Method for preventing overheating of an exhaust purifying device  
A method for preventing overheating of an exhaust purifying device by means of an air-flow sensor for sensing the amount of air drawn into an engine to generate an analog voltage corresponding to...
4318385 Exhaust gas recirculation control system  
An exhaust gas recirculation control system for an internal combustion engine comprises a pressure detector responsive to exhaust gas pulsations for detecting pressure in an exhaust gas...
4303613 Gas sensing apparatus  
A gas sensing apparatus for sensing the air-fuel ratio in an internal combustion engine has two sinter elements fixed to the tip of a tubular ceramic body and both of the sinter elements are made...
4294214 Engine combustion control system  
The system comprises a zirconium sensor interposed in the exhaust conduit of a gas-fueled engine for sensing both oxygen content and temperature of the exhaust gases, and for emitting electrical...
4269156 Air/fuel ratio management system with calibration correction for manifold pressure differentials  
An air fuel ratio management system having a calibration correction for the pressure differentials between the exhaust and intake manifolds of the engine is disclosed. The differential calibration...
4248186 Exhaust gas recirculation control system  
An E.G.R. control system includes a pressure modulator operative to modulate the magnitude of the port vacuum as applied to a diaphragm type actuator of an E.G.R. valve. The modulator comprises a...
4242997 Exhaust gas recirculation system for internal combustion engines  
In an exhaust gas recirculation system for an internal combustion engine, a flow control valve is disposed within a recirculation pipe and operatively connected to a pneumatically operated...
4232643 Charge forming system for maintaining operation of an internal combustion engine at its lean limit  
A charge forming system is disclosed which monitors a parameter of engine combustion efficiency, such as power output, and derives a signal indicating the sense of power change. A fuel mixture...
4231333 Single point fuel dispersion system using a low profile carburetor  
This invention relates to a computer controlled fuel system for an internal combustion engine including a low profile carburetor for permitting engine operation on very lean fuel/air ratios without...
Matches 101 - 150 out of 204 < 1 2 3 4 5 >