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| Number | Title | Issue Date |
| 7156376 | Carburetor electronic control system A carburetor electronic control system includes: transmission devices coupled to valves for opening and closing an intake path of a carburetor; electric motors that make the valves open and close via the transmission devices; and an electronic control unit for contr... | 01/02/2007 |
| 7036198 | Method of assembling an actuator arrangement A method of assembling a piezoelectric actuator arrangement comprises providing a piezoelectric element having first and second ends and arranging the piezoelectric element within a sleeve member such that the inner surface of the sleeve member defines, together wit... | 05/02/2006 |
| 6971369 | Pressure assisted governor A governor for an internal combustion engine having an intake passageway and an engine throttle valve movable between an open position and a closed position, a throttle arm connected to the engine throttle valve to control movement of the engine throttle valve. A pr... | 12/06/2005 |
| 6951199 | Vacuum generator in combustion engine A vacuum generator is provided wherein the intake vacuum of a combustion engine is led to a negative pressure device such as a vacuum booster of a brake booster device through a check valve. An idling air passage is connected to a suction pipe of the combustion engi... | 10/04/2005 |
| 5722367 | Engine idle speed air control A control device for bypassing intake air around a closed throttle valve of an operating engine while it is idling. The device has a main flow control valve controlling bypass air flow in the bypass air passageway of the device and movable to closed and o... | 03/03/1998 |
| 5188073 | Fluid control valve, valve support member therefor and idling air amount control apparatus for automobile using the fluid control valve A fluid control valve which regulates a flow rate of a liquid and, more particularly, which controls a fluid by axially moving a valve body fixed to a valve shaft. The fluid control valve comprises a device for absorbing vibrations of the valve shaft in a... | 02/23/1993 |
| 5042448 | Idle air bypass A valve assembly of novel configuration is associated with the main air induction passage of a fuel-injected, spark-ignited, automotive internal combustion engine for the purpose of regulating the idle air flow. The valve assembly has an inlet connected u... | 08/27/1991 |
| 4977878 | Carburetor idler assist system A device for interacting with a throttle of a carburetor to produce a second, constant idle speed having a ram arm with a first end engaging the throttle when the ram arm is in a forward position; a vacuum-operable diaphragm attached to the ram arm for mo... | 12/18/1990 |
| 4944267 | Electropneumatic displacement device for a throttle valve of an internal combustion engine A displacement device for a throttle valve of an internal combustion engine in idling condition, has a housing, a diaphragm which is arranged in a chamber in the housing and is operatively connected to the throttle valve, a spring in the chamber, which sp... | 07/31/1990 |
| 4873955 | Idle air flow shutoff valve The present invention is an idle fluid flow shutoff assembly including a throttle body having a longitudinal axis with a throttle plate disposed transversely to the longitudinal axis. The throttle body includes a secondary passageway having an inlet and a... | 10/17/1989 |
| 4829960 | Engine idle control system for internal combustion engine In order to ensure that idling control is assuredly provided when the engine is subject to cold starts and the like, a solenoid which controls the modulation of a pressure signal via which a vacuum operated servo unit is controlled, is arranged to be fed ... | 05/16/1989 |
| 4823750 | Automotive engine idle speed control device Automotive engine idle speed control device meters the flow rate of air supplied to the engine bypassing an intake pipe thereof during engine idle operation to thereby control the engine idle speed. An actuating vacuum is produced in accordance with an el... | 04/25/1989 |
| 4787351 | System for controlling idle speed of an engine An engine has a bypass around a throttle valve and a solenoid operated idle speed control valve provided in the bypass. The control valve is driven by driving pulses duty ratio of which is dependent on a coolant temperature and an old learning correction ... | 11/29/1988 |
| 4774920 | Idling speed control system for internal combustion engines An idling speed control system for controlling idling rotational speed of an internal combustion engine. A vacuum-operated actuator having a diaphragm defining a vacuum chamber controls opening and closing of a throttle valve in response to pressures supp... | 10/04/1988 |
| 4753202 | Idling speed control system for internal combustion engines An idling speed control system for controlling idling rotational speed of an internal combustion engine. A vacuum-operated actuator having a diaphragm defining a vacuum chamber controls opening and closing of a throttle valve in response to pressures supp... | 06/28/1988 |
| 4750461 | Idling speed control system for internal combustion engines An idling speed control system for controlling idling rotational speed of an internal combustion engine. A vacuum-operated actuator having a diaphragm defining a vacuum chamber controls opening and closing of a throttle valve in an intake passage of the e... | 06/14/1988 |
| 4738237 | Idling control for an otto engine An idling control for an Otto engine comprises a throttle valve positioned in a suction pipe of an engine intake manifold; a pneumatic cylinder unit operably engaged with said throttle valve by means of a positioning leg; a three-way flow control valve in... | 04/19/1988 |
| 4736720 | Idling speed control system for internal combustion engines An idling speed control system for controlling idling rotational speed of an internal combustion engine. A vacuum-operated actuator having a diaphragm defining a vacuum chamber controls opening and closing of a throttle valve in response to first and seco... | 04/12/1988 |
| 4693220 | Idling speed control system for internal combustion engines A vacuum-operated actuator controls opening and closing of a throttle valve in an intake passage of an internal combustion engine in response to pressure in a vacuum chamber thereof. A change-over control valve supplies the vacuum chamber, selectively, wi... | 09/15/1987 |
| 4614184 | Single solenoid control of sequential multiple actuators A flow control system (10) responsive to fluid pressure comprising means (12, 20) for varying the magnitude of said pressure within a plurality of different pressure ranges; a plurality of pressure responsive valves (30, 32) communicated with said pressur... | 09/30/1986 |
| 4573441 | Valve arrangement An improvement is disclosed for a valve arrangement for adjusting the idling speed of an engine of the type having an intake manifold and a throttle valve in the manifold. In this arrangement there is a bypass of the throttle valve, and an electromechanic... | 03/04/1986 |
| 4546744 | Electromechanical and pneumatic device for controlling the throttle position of a carburetor according to engine speed during accelerator release A device for controlling the throttle position of a carburetor during an accelerator release stage, in accordance with the speed of the engine. The device includes a vacuum motor which acts on a control lever associated with the carburetor throttle and wh... | 10/15/1985 |
| 4531490 | Idling speed feedback control method having fail-safe function for abnormalities in functioning of crank angle position-detecting system of an internal combustion engine An idling speed control method which is adapted to detect by detecting means predetermined rotational angle positions of an internal combustion engine having supplementary air supply control means that regulates the quantity of supplementary air being sup... | 07/30/1985 |
| 4522175 | Rotational speed control apparatus for internal combustion engines In a rotational speed control apparatus for an internal combustion engine in which a signal-responsive diaphragm, whose controlling position is determined by a controlled negative pressure signal, is provided with a valve member controlling to negative pr... | 06/11/1985 |
| 4510904 | Vacuum operated idle speed control device A vacuum operated idle speed control device (26) for use on internal combustion engines to regulate the idle speed of the engine at the lowest operating speed. A controlled or sized input orifice (48) to the device (26) permits the basic valve body (38) t... | 04/16/1985 |
| 4491109 | Idling rpm feedback control method having fail-safe function for abnormalities in the functioning of the throttle valve opening detecting means of an internal combustion engine An idling rpm feedback control method for controlling control means that controls the quantity of supplementary air being supplied to an internal combustion engine in a feedback manner, in response to the difference between actual engine rpm and desired i... | 01/01/1985 |
| 4474153 | Idling speed controlling system for internal combustion engine Feedback control is carried out to maintain the rotational speed of an internal combustion engine during idling at a desirable speed determined according to the operating conditions of the engine by controlling an adjusting valve for controlling the amoun... | 10/02/1984 |
| 4474154 | Idling speed control for internal combustion engines Regulation of idling speed involves the production of a first error signal by comparing engine speed with a reference idling speed, and then deriving from the first error signal in an amplifying PI controller, proportional and integral components that are... | 10/02/1984 |
| 4462359 | Pulsed bleed air throttle position controller Apparatus for controlling the idle speed of an internal combustion engine. A contact arm contacts a throttle lever to limit movement of the lever in one direction and to move the lever in the opposite direction so to control the position of a carburetor t... | 07/31/1984 |
| 4457276 | Idling speed control system for internal combustion engine Feedback control is carried out to maintain the idling speed of an internal combustion engine at a desired idling speed determined according to the operating conditions of the engine. When the actual idling speed of the engine significantly falls with res... | 07/03/1984 |
| 4457275 | Idling speed control system for internal combustion engine The difference between the actual idling speed of an internal combustion engine and a desired idling speed determined according to the operating conditions of the engine is integrated and the opening angle of the throttle valve is controlled according to ... | 07/03/1984 |
| 4433661 | Device for the speed-dependent closure limitation of a carburettor main throttle A device for the speed-dependent closing limitation of a selectively adjustable carburettor main throttle, which is prestressed in the closing direction, includes a variably positionable throttle stop for effecting a substantially complete closure of the ... | 02/28/1984 |
| 4425887 | Apparatus for regulating the idling rpm of an internal combustion engine An apparatus is proposed which serves to regulate the idling rpm of an internal combustion engine. To this end, a bypass valve is provided, which is disposed in a bypass around a throttle valve in the intake tube of the engine. A movable wall of the bypas... | 01/17/1984 |
| 4406262 | Engine idling speed control system and method for an internal combustion engine Disclosed is an electronic automatic control method and system for controlling an air flow rate for an internal combustion engine of an automotive vehicle. The system includes an open loop control and a feedback control which are selectively effected corr... | 09/27/1983 |
| 4391245 | Pressure operated three-position throttle stop assembly A throttle stop assembly is shown having a body or housing containing a diaphragm therein which serves to define within such housing a relatively high pressure or atmospheric chamber at one side of the diaphragm and a relatively low pressure or vacuum cha... | 07/05/1983 |
| 4364349 | Method for controlling the operation of the fuel injector in a fuel injection type internal combustion engine during a deceleration condition of the engine An electronic fuel injection control internal combustion engine which is provided with a feedback control system for maintaining a predetermined constant idling speed and a system for controlling the operation of the fuel injector during the deceleration ... | 12/21/1982 |
| 4354464 | Air intake arrangement for diesel engine An improved air intake arrangement for Diesel engine in which an intake air shutter valve is provided in an intake air passage of the engine for closing the intake air passage when the degree of depression of an accelerator pedal is small, especially in e... | 10/19/1982 |
| 4346686 | Idle controller for an internal combustion engine An idle controller for an internal combustion engine which increases the idle setting of the engine and retards the idling timing whenever the heater is operated, so that in a particular embodiment in a vehicle which further includes an air conditioner th... | 08/31/1982 |
| 4312311 | Engine idling correction system for an automotive vehicle An engine idling correction system for an automotive vehicle provided with an air conditioner and an automatic transmission comprises a novel actuator having two vacuum compartments. A vacuum supplied from an intake vacuum outlet on an intake manifold of ... | 01/26/1982 |
| 4300501 | Apparatus for controlling the rotational speed of an I.C. engine in an idling operation Apparatus for controlling the rotational speed of an I.C. engine in an idling operation comprises a constant pressure valve, a solenoid valve, and a control signal generator. A constant vacuum pressure produced by the constant pressure valve is modified b... | 11/17/1981 |
