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| Number | Title | Issue Date |
| 7464694 | Variable flow control method and device between air intake and throttle A variable flow control method and device between an air intake and a throttle comprise at least one one-way valve with suitable restoring function between the air intake and the throttle, especially for a fuel-injected car. Corresponding functions can be generated ... | 12/16/2008 |
| 7246794 | Carburetor throttle valve control system A carburetor valve control system for stabilizing engine warm-up operating conditions by automatically controlling the degree of opening of a throttle valve so as to be larger than a normal degree of opening for idling, without carrying out a special operation of ap... | 07/24/2007 |
| 7223205 | Method for controlling engine and/or transmission temperature The method of the present invention is adapted to control transmission oil temperature. According to a preferred embodiment, the engine coolant temperature may be controlled in addition to or regardless of transmission oil temperature. To maintain transmission and/o... | 05/29/2007 |
| 7073469 | Intake system for an internal combustion engine An intake system for an internal combustion engine is provided which comprises a variable valve control apparatus capable of variably and continuously controlling the amount of intake air of an internal combustion engine by varying valve lift characteristics of an i... | 07/11/2006 |
| 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 |
| 6882929 | NOx emission-control system using a virtual sensor A method and system may be provided to perform a process for controlling NOx emissions of an target engine. In one embodiment of the invention, the process may include determining predicted NOx values based on a model reflecting a predetermined... | 04/19/2005 |
| 6868327 | Device for estimating an amount of intake air of an internal combustion engine A device for estimating the amount of intake air of an internal combustion engine comprising intake pipe pressure calculation means for calculating an intake pipe pressure, at this time, downstream of the throttle valve, and intake air amount calculation means for c... | 03/15/2005 |
| 6424905 | Vacuum actuated vehicle speed control system A method and system adjusts powertrain controls to avoid significant deviations from set speed during speed control operation. Low vacuum conditions of a reservoir vacuum resulting from high load conditions are detected and eliminated through the initiati... | 07/23/2002 |
| 6338330 | Device for moving a valve flap An apparatus for moving a valve flap, especially in the air intake duct of an internal combustion engine, including a vacuum box (20) which executes a longitudinal movement in dependence on the application of a negative pressure or vacuum, and the longitu... | 01/15/2002 |
| 5947085 | Method and device for automatically controlling the fluid intake of an engine A device for automatically adjusting fluid flow into an engine intake includes a body member adapted to mount upstream of the engine intake and having a fluid passage therethrough and an aperture therein intersecting the fluid passage, a plate slidably in... | 09/07/1999 |
| 5823163 | Intake air-flow control device for an internal combustion engine An intake air-flow control device for an internal combustion engine is disclosed. The device comprises an intake air-flow control valve provided for every cylinder of the engine, a negative pressure actuator for opening the intake air-flow control valve f... | 10/20/1998 |
| 5816217 | Diesel engine air/fuel ratio controller for black smoke reduction A controller for mechanically setting a diesel engine's air/fuel ratio at a stoichiometric value to reduce black smoke emissions by regulating the quantity of fuel injected into a diesel engine's combustion chamber in response to the quantity of air flow ... | 10/06/1998 |
| 5791313 | Pulse sensing speed control for internal combustion engines An idle speed control for an internal combustion engine has a crankcase adapted to be connected to a fuel metering device used to selectively deliver fuel to the engine in response to pressurized air pulses generated in the engine. The idle speed control ... | 08/11/1998 |
| 5656918 | Apparatus for controlling a load connected to an engine Apparatus for controlling a load connected to an internal combustion engine during operation is disclosed and claimed. The apparatus comprises a suction switch (12) which is sensitive to a decrease in vacuum in the manifold (16) of the vehicle when more m... | 08/12/1997 |
| 5542388 | Air-flow control device for engine An air-flow control device, for an engine having an intake passage and a fuel injector arranged in the intake passage for injecting fuel into the intake passage, includes an air-flow control valve, and a driving apparatus for driving the air-flow control ... | 08/06/1996 |
| 5279270 | Governor for internal combustion engine The piston actuator for a governor valve in a carburetor is coupled through an electromagnetically operable selector valve to either atmospheric pressure in the air filter or to vacuum in an intake manifold. The selector valve is controlled by engine spee... | 01/18/1994 |
| 5130502 | Vacuum-controlled switch means responsive to engine load A vehicle switch means includes an electric switch operatively closed or opened as driven by a central spindle controlled by a vacuum controller communicated with an inlet manifold of a car engine, whereby when the car is subject to a heavy load, the weak... | 07/14/1992 |
| 5065719 | Actuating device for a throttle valve arranged in an intake pipe of a diesel internal combustion engine The invention relates to an actuating device for a throttle valve arranged in an intake pipe in a diesel internal combustion engine, having a mechanical adjusting linkage for the load-dependent adjustment of the throttle valve, the adjusting linkage havin... | 11/19/1991 |
| 5010866 | Nonlinear feedback control method and apparatus for an internal combustion engine A nonlinear feedback control method and apparatus for an internal combustion engine in which a model of the engine is formulated, and load torque is estimated as a variable representing the operating state of the engine. Deviations of the engine from the ... | 04/30/1991 |
| 5003949 | Governor assist mechanism An apparatus for assisting a primary governor device (20) on an engine at certain load conditions or during transient loading is disclosed. The primary governor device has a control arm (12) which is moved by a primary governor spring (15) via a primary g... | 04/02/1991 |
| 4721085 | Varying area fuel system for combustion engine A fuel injection apparatus in which a closed fuel circuit is pressurized, and the amount of fuel injected is determined by varying the area switching on/off time of a solenoid in the injector, thereby allowing variance in the area factor of the equation Q... | 01/26/1988 |
| 4590896 | Two-stroke engine The invention is directed to a control system for a two-stroke engine for limiting a control quantity thereof such as the rotational speed. For this purpose, a pressure line including a valve is connected to the crankcase and leads to a pneumatic controll... | 05/27/1986 |
| 4565166 | Intake system for an internal combustion engine An intake system for an internal combustion engine, the system having an air tank of a predetermined volume. The tank is connected to a intake pipe of the engine via a first connecting pipe. The tank is connected to an air cleaner via a second connecting ... | 01/21/1986 |
| 4561517 | Cruise control modulator A modulated vehicle cruise control system includes a source of vacuum, a servo transducer or control unit connected to the source of vacuum, an engine throttle position servo connected to the servo, a speed sensor and a logic circuit or command module. A ... | 12/31/1985 |
| 4512304 | Method and apparatus for controlling air to gas ratio in gas engines Apparatus for controlling the air to gas ratio of fuel being supplied to a gas engine that utilizes the pressure in the inlet of the carburetor and the pressure in the intake manifold of the engine to control a regulator that is used to supply gas to the ... | 04/23/1985 |
| 4485782 | Constant speed control devices for vehicles A constant speed driving device has an ejector for supplying negative pressure to an actuator which controls the engine's throttle valve. The ejector includes a diffuser communicating with the engine intake manifold downstream of the throttle valve and a ... | 12/04/1984 |
| 4411244 | Air flow measuring device for internal combustion engines An air/fuel ratio compensating device is provided for association with an internal combustion engine having a fuel control valve, air suction pipe means and pedal accelerator means, the compensating device including an area flow metal system made up of a ... | 10/25/1983 |
| 4407385 | Cruise control modulator A modulated vehicle cruise control system includes a source of vacuum, a servo transducer or control unit connected to the source of vacuum, an engine throttle position servo connected to the servo, a speed sensor and a logic circuit or command module. A ... | 10/04/1983 |
| 4391246 | Throttle opener device for vehicle engines A throttle valve opener for a throttle valve in the intake passage of a vehicle engine is actuated by suction pressure from the intake passage, the suction pressure being weakened by introduction of atmospheric air during certain operating conditions of t... | 07/05/1983 |
| 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 |
| 4385604 | Method and device for operation of an internal combustion engine in particular for a vehicle Controls are provided to directly or indirectly avoid operation of the internal combustion engine of a motor vehicle in a range of speed and output power which is detrimental to engine efficiency. The controls become operative upon attainment of a predete... | 05/31/1983 |
| 4380418 | Vacuum pressure selection and generation device An aspirator using positive pressure from a suitable source generates a vacuum pressure when the primary source of vacuum pressure, typically the engine intake manifold, prodcuces insufficient vacuum pressure to operate a device such as a road speed contr... | 04/19/1983 |
| 4373485 | Carburetor for an internal combustion engine A carburetor for an automotive internal combustion engine has primary and secondary barrels, each of which contains an air intake passage, a venturi and a throttle valve arranged in the air intake passage. The secondary throttle valve is adapted to open i... | 02/15/1983 |
| 4357917 | Variable valve timing system for induction control of an internal combustion engine The present invention relates to a variable valve timing system for an internal combustion engine which cyclically opens and closes a port providing fluid communication between a combustion chamber and a conduit leading thereto and which delays the closur... | 11/09/1982 |
| 4358414 | Fuel delivery system for combustion devices An air-fuel mixture is delivered at a certain predetermined velocity through a pressure-regulated gate to a dual screen atomizer consisting of a first comparatively coarse mesh screen in contact with a finer mesh screen close to the throat of the gate. Th... | 11/09/1982 |
| 4354465 | Diesel throttle valve control system An intake air throttle valve control system for a diesel engine which greatly reduces vibration and noise and rough engine running at idling speeds. A throttle valve is provided in an intake passage in series with the intake air manifold of the engine wit... | 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 |
| 4346775 | Vehicle speed control A pneumatically operated speed governor (26) for moving an engine throttle member (10) for controlling the speed of a vehicle includes a pneumatically operated actuator having an output connected to the engine throttle member. A pivotally mounted valve me... | 08/31/1982 |
| 4343277 | Throttle valve opening controller A throttle valve opening controller for applying varying retarding forces against the closing force of the throttle valve at the time of quick closing thereof depending on the operating condition of the engine, comprising: a first diaphragm device consist... | 08/10/1982 |
| 4337743 | Throttle pedal feedback apparatus for economical engine operation An apparatus is disclosed whereby a sudden perceptible resistance is applied to the accelerator pedal of an automobile vehicle when the intake manifold vacuum pressure level decreases below a preselected pressure. A pneumatic motor is operated by a thrott... | 07/06/1982 |
