| Patent Number |
Title Of Patent |
Date Issued |
| 5491976 |
Vehicle emission air injection |
February 20, 1996 |
| A valve for an automotive vehicle emission system is provided which includes a valve housing with an inlet communicating the valve housing with an air pump; an outlet fluidly communicating the valve with a catalytic converter, the outlet having a check valve preventing flow from an e |
| 5353591 |
Exhaust heating control |
October 11, 1994 |
| Control of a fuel rate and an air rate delivered to an exhaust gas heater over successive control periods by determining and periodically updating a desired heater air quantity and a desired heater air/fuel ratio, by commanding an air rate in accord with the desired heater air quantity, |
| 5353590 |
Exhaust heating control |
October 11, 1994 |
| Control of a fuel quantity and an air quantity delivered to an exhaust gas heater is provided by determining a desired heater air quantity and a desired heater air/fuel ratio both of which may vary over multiple control states, by commanding an air rate in accord with the desired heater |
| 5234024 |
Differential pressure regulator |
August 10, 1993 |
| A fuel pressure regulator controls the pressure differential across a nozzle which is subject to variations in exhaust gas backpressure having a solenoid actuated valve member which is actuable in response to signals from a controller to establish a predetermined fuel pressure across the |
| 5163706 |
Electro-hydraulic pressure regulating valve assembly for a hydraulic damper |
November 17, 1992 |
| A pressure regulating valve assembly includes a valve body mounting an electric solenoid assembly. The solenoid assembly controls the fluid pressure in a chamber defined in the valve body. Fluid in the chamber is biased against a deflectable disc which controls fluid flow through the |
| 5150696 |
Adaptive memory control for normalized dilution |
September 29, 1992 |
| An internal combustion engine air-fuel ratio control method and apparatus wherein a most favorable parameter selected from the group consisting of air, fuel, and recirculated exhaust gas is adjusted in response to detected deviation of the air-fuel ratio away from the desired ratio. |
| 5119793 |
Fuel injection |
June 9, 1992 |
| A single fuel metering valve directs fuel to a plurality of charge delivery injectors. |
| 5082184 |
Fuel injection |
January 21, 1992 |
| In a fuel injection system for a multi-cylinder internal combustion engine, a plurality of injection nozzles discharge fuel adjacent the engine inlet ports, and a single injector meters the fuel to all of the injection nozzles. The injector may include an annular valve surface, a plurali |
| 5029570 |
Exhaust gas recirculation control |
July 9, 1991 |
| A method for recalibration of parametric relationships used in exhaust gas recirculation EGR control. When such recirculation would typically be inactive, relationships between parameters are measured, such relationships being normally measurable only with inactive EGR. New informati |
| 5013930 |
Remote control lever module |
May 7, 1991 |
| A remote control lever module comprising a support including a bearing and a lever including a shaft pivotably supported by the bearing for oscillation about the shaft axis between a nonactuating position and actuating positions. The lever further includes an actuating arm extending |
| 5004162 |
Solenoid actuated valve assembly |
April 2, 1991 |
| In an injector adapted to deliver a charge of fuel and air directly into the combustion chamber of a two-stroke cycle engine, a single solenoid coil has an armature mechanism that sequentially opens both a fuel metering valve and a charge delivery valve. |
| 4958773 |
Fuel injection |
September 25, 1990 |
| An injector has a single tapered valve controlling fuel flow to a plurality of outlet passages. The entrance to each outlet passage has an orifice surrounded by a raised valve seat. Each valve seat is separated from the other valve seats by a recessed space. The valve pivots as it is dis |
| 4721176 |
Vehicle traction control system |
January 26, 1988 |
| This invention relates to a traction control system for a vehicle that combines the control of both air and fuel delivered to the vehicle engine for limiting the slip of the vehicle driven wheels. |
| 4693275 |
Electro-hydraulic pressure regulating valve |
September 15, 1987 |
| An electro-hydraulic pressure regulating valve including a control pressure chamber, an annular supply pressure port connected to the control pressure chamber and having a first seat area, an annular exhaust port connected to the control pressure chamber and having a second seat area equ |
| 4676273 |
Electro-hydraulic pressure regulating valve |
June 30, 1987 |
| An electro-hydraulic pressure regulating valve including a tubular valve body, a partition in the valve body dividing the latter into a valve chamber and a solenoid chamber, a valve sleeve in the valve chamber with a piston slidable in the sleeve and defining a bias pressure chamber betw |
| 4640248 |
Failsafe drive-by-wire engine controller |
February 3, 1987 |
| A drive-by-wire engine control system in which the engine is set to an idle operating mode when the force applied to the accelerator pedal is zero even though the accelerator pedal is in an off-idle position. |
| 4621772 |
Electromagnetic fuel injector with thin orifice director plate |
November 11, 1986 |
| An electromagnetic fuel injector has a thin orifice director plate, mounted downstream of the orifice passage defined when the solenoid actuated valve of the injector is in the open position relative to its associated valve seat, for controlling static flow from the injector. The thin or |
| 4572436 |
Electromagnetic fuel injector with tapered armature/valve |
February 25, 1986 |
| An electromagnetic fuel injector is provided with a tapered armature valve plate operatively positioned by means of a locator so that it is arranged so as to, in effect, pivot from a spring biased position at which it seats against a valve seat associated with a plurality of orifice disc |
| 4513775 |
Pressure regulator |
April 30, 1985 |
| A pressure regulator assembly, suitable for controlling the flow of compressed natural gas to fuel an internal combustion engine, has a small primary valve positioned by a regulator diaphragm to control the flow at high supply pressures and a large secondary valve to provide additional |
| 4499879 |
Fuel supply system for an internal combustion engine |
February 19, 1985 |
| A system for providing the fuel requirements of an engine based on an estimated value of the temperature of the intake region of the engine. |
| 4474150 |
Valve assembly |
October 2, 1984 |
| Induction air flow to an internal combustion engine is controlled or measured by a butterfly valve which extends into undercut recesses on opposite sides of the valve bore. The valve member rotates in excess of 90.degree. between its minimum air flow position and its maximum air flow |
| 4463735 |
Dual fuel supply system |
August 7, 1984 |
| A dual fuel supply system for an automotive engine has a fuel tank adapted to contain both methane and propane at pressures up to 17,000 kPa. A switching valve assembly directs methane to the engine fuel metering apparatus when the fuel tank pressure exceeds 1400 kPa and directs propane |
| 4462259 |
Pressure transducer |
July 31, 1984 |
| A pressure transducer of the manometer type comprises two interconnected columns of liquid with means for applying differential pressure across the columns. The liquid is a magnetic liquid and a magnetic field is impressed on the columns to attract the liquid by magnetic force to a refer |
| 4445369 |
Hot film sensor for air flow meter |
May 1, 1984 |
| To measure the mass air flow in the induction passage of an engine, a small venturi located centrally in the passage serves as an air sampling tube. A slotted aperture in the wall of the tube at the venturi throat allows a hot film sensor to extend into the venturi throat from a support |
| 4421083 |
Engine air flow regulator |
December 20, 1983 |
| A balanced dual valve member is positioned by a pressure responsive diaphragm and a solenoid reference device to provide an air flow through an engine throttle bypass passage which does not vary with changes in engine manifold pressure. |
| 4399798 |
Exhaust gas recirculation control |
August 23, 1983 |
| In an internal combustion engine, recirculation of exhaust gases is controlled to maintain the control pressure in a zone of the recirculation passage proportional to a reference pressure and thus to provide exhaust gas recirculation as a proportion of induction air flow. A duty cycle |
| 4397289 |
Self-calibrating exhaust gas recirculation system |
August 9, 1983 |
| 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 a control pressure on the other as determined by an EGR valve. A pressure transducer compa |
| 4359031 |
Engine air flow responsive control |
November 16, 1982 |
| An engine charge forming device controls the fuel metering orifice area in proportion to the throttled air flow area of the induction passage and controls the pressure drop across the fuel metering orifice in proportion to a vacuum signal which is substantially independent of the com |
| 4346555 |
Exhaust air flow proportioning valve |
August 31, 1982 |
| A valve controlling the rate of air flow from a supply pump to an engine exhaust system directs the air flow to the exhaust system through an orifice in a diaphragm valve which is associated with a valve seat separating the air supply from an excess air discharge port. The pressures |
| 4321902 |
Engine control method |
March 30, 1982 |
| During operation of an internal combustion engine at low temperatures, the carburetor choke is closed to the extent necessary to provide the fuel which will maintain the mean effective pressure of combustion equal to the mean effective pressure occurring during operation at normal temper |
| 4318869 |
Carburetor |
March 9, 1982 |
| In a carburetor, a linear motor assembly urges the metering apparatus against a biasing spring with a force related to the linear motor current, and an adjusting screw grounds a portion of the active turns of the biasing spring to vary its spring rate and thereby establish the position |
| 4286562 |
Engine charge forming apparatus |
September 1, 1981 |
| An engine charge forming device controls the fuel metering orifice area in proportion to the throttled air flow area of the induction passage and controls the pressure drop across the fuel metering orifice in proportion to a vacuum signal which is substantially independent of the com |
| 4275697 |
Closed loop air-fuel ratio control system |
June 30, 1981 |
| A command signal drives a carburetor metering valve to provide the carburetor fuel flow which will establish a desired air-fuel ratio; simultaneously, the command signal drives a control unit which purges fuel vapor from a fuel vapor storage region. The control unit minimizes purge f |
| 4200073 |
Electronic throttle body fuel injection system |
April 29, 1980 |
| An electronic throttle body fuel injection system in which a fuel pump delivers fuel at constant flow and pressure to a jet in a pressure controlled chamber which is continuously ported upstream of the jet discharge to a fuel nozzle in a throttle bore and is periodically ported to by |
| 4196707 |
Exhaust gas recirculation control |
April 8, 1980 |
| A regulating unit senses the pressures in two zones of a recirculation passage to create a control pressure, and a transducer regulates an operating pressure which positions a control valve to provide exhaust gas recirculation at rates which establish the pressures in the zones neces |
| 4186703 |
Exhaust gas recirculation control |
February 5, 1980 |
| A switching member simultaneously establishes a reference pressure and selects the pressure in one of two zones of a recirculation passage to create a control pressure, and a transducer regulates an operating pressure which positions a control valve to provide exhaust gas recirculati |
| 4175103 |
Carburetor |
November 20, 1979 |
| In a carburetor, an electromagnet energized according to a pulse width modulated duty cycle has a stationary pole member which drives a pair of magnetically responsive valves--one or both being permanently magnetic--to control fuel flow through a main metering orifice and air flow throug |
| 4095570 |
Electronic engine control system and method of operation |
June 20, 1978 |
| A system for positioning an engine control element has a sensor measuring a value corresponding to the actual position of the element, a reference providing a command value establishing the proper position for the element, an electronic control which compares the measured value with the |
| 3978175 |
Engine air-fuel ratio control means |
August 31, 1976 |
| An electromagnetic vacuum regulator responds to an electrical signal to supply a regulated vacuum output to vacuum sensitive air-fuel ratio control means in an engine carburetor, the air-fuel ratio control means providing a leaner air-fuel ratio with increasing manifold vacuum. The v |
| 3958604 |
Control valve |
May 25, 1976 |
| A hydraulic position servo system includes a primary control valve moved by a mechanical input which embodies a pintle laterally shiftable in a cylinder to differentially throttle two orifices to establish a variable control pressure. |
