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| Number | Title | Issue Date |
| 7358632 | Motor which performs a rotational-to-linear motion conversion A sliding hole is formed so that a screw portion can pass therethrough. Also, a seal member is provided at a portion, through which the screw portion placed in the sliding hole can pass and in which a sliding portion does not slide. ... | 04/15/2008 |
| 7290531 | Integrated fuel supply system for internal combustion engine An electronic fuel injection system is combined with a carburetor in a carbureted internal combustion engine. The resulting air/fuel induction system comprises a carburetor air/fuel induction system in combination with an electronic fuel injection system which uses ... | 11/06/2007 |
| 7273040 | Air-fuel ratio control apparatus for internal combustion engine At the time of start-up, fuel supply is made excessive. When air-fuel ratio feedback control is started while the fuel is excessive, the control is put into a state of overshoot or hunting, and it takes a long time to converge to the target air-fuel ratio. In an air... | 09/25/2007 |
| 7228843 | Internal combustion engine having a carburetor and a starting device A two-stroke engine has an intake channel via which the engine (1) is supplied with an air/fuel mixture prepared in a carburetor (12). The engine also has a starting device (19, 40) for enrichment of the air/fuel mixture during the start operati... | 06/12/2007 |
| 7205690 | Motor for rotational-to-linear conversion with shaft seal A sliding hole is formed so that a screw portion can pass therethrough. Also, a seal member is provided at a portion, through which the screw portion placed in the sliding hole can pass and in which a sliding portion does not slide. ... | 04/17/2007 |
| 7128309 | Automatic choke system for carburetor An automatic choke system includes: a wax-type temperature sensing section; and an output section which opens a choke valve of a carburetor in response to heat receiving operation of the temperature sensing section. Temperature sensing section includes: a bottomed c... | 10/31/2006 |
| 7069919 | Method and apparatus for controlling the ratio of ambient air to recirculated gases in an internal combustion engine A method and apparatus for controlling the ratio of ambient air to recirculated gases in an internal combustion engine, wherein an gas injector includes a intake air conduit defining a ambient air flow path, an actuator connected to the intake air conduit, a recircu... | 07/04/2006 |
| 6932058 | Carburetor arrangement for an internal combustion engine A carburetor arrangement is provided for an internal combustion engine that is to be started with a pull cord. A fuel channel that is connected with a fuel-filled storage space opens into and supplies fuel to an intake channel portion as a function of the underpress... | 08/23/2005 |
| 6901919 | System for controlling flow of intake air during start-up period of engine A system for controlling a flow of intake air in a secondary intake air passage during a start-up period of an internal combustion engine. A main intake air passage extends to an intake port of the engine. A throttle valve is located in the main intake air passage. ... | 06/07/2005 |
| 6505616 | Starting mechanism A starting mechanism is provided for an internal combustion engine, and includes a diaphragm carburetor. A butterfly valve is disposed in the intake channel of the carburetor and has a pivot range into which at least one fuel nozzle opens. A starter valve... | 01/14/2003 |
| 5819712 | Air and fuel system for carburetor and fuel injection systems An air and fuel system for carburetor and fuel injection engines that regulates the temperature of air and fuel that is mixed in the carburetor or fuel injector prior to introduction to the cylinders of the engine. A heater and associated filter located a... | 10/13/1998 |
| 5730110 | Bi-modal air assist injection system The present invention provides an apparatus for controlling air flow within an internal combustion engine comprising a secondary air passage. The secondary air passage system includes an air inlet channel directing air flow to the air assist valve and an ... | 03/24/1998 |
| 5501204 | Assist air control apparatus for internal combustion engine To inhibit an air pulsating sound resulting from the opening and closing of the air control valve in a cold engine and to improve controllability of ISC functions in an assist air supply apparatus. When an engine is cold based on a cooling water temperatu... | 03/26/1996 |
| 5460148 | Assist air control system for internal combustion engine An assist air control system for an internal combustion engine introduces, via an assist air passage bypassing a throttle valve, a portion of intake air flowing in an intake pipe upstream of the throttle valve to an area where fuel is injected from a fuel... | 10/24/1995 |
| 5299548 | Carburetor with lagging bypass air valve An improved carburetor useful for reducing emissions of small gasoline powered engines commonly used to power lawnmowers and the like has a bypass air inlet and valve for venting amounts of fresh air into the fuel/air mixture to lean the mixture prior to ... | 04/05/1994 |
| 5211148 | Method of and an apparatus for controlling assist air in an internal combustion engine An apparatus supplies assist air toward an injection nozzle of a fuel injection valve of an internal combustion engine, to atomize an injected fuel. The apparatus starts and stops supplying the assist air according to engine operating conditions while cor... | 05/18/1993 |
| 5207207 | Carburetor metering and hot air dilution system A carburetor metering system is provided comprising a fuel valve including a valve member movable with respect to a valve seat to vary the fuel flow, the valve member and the valve seat having substantially parallel inclined surfaces and which define ther... | 05/04/1993 |
| 5086667 | Intake system for automobile engine An intake system for an automobile engine with a manual transmission or an automatic transmission has a throttle valve disposed in an intake passage for distributing air into cylinders of the engine. A supplementary air distributor provided in association... | 02/11/1992 |
| 5081978 | Auxiliary air control valve for engines An auxiliary air control valve for engines wherein the valve has an intermediate peripheral portion enlarged to present a small gap to the valve seat port, and the front side of the intermediate peripheral portion and the rear side thereof formed to have ... | 01/21/1992 |
| 5040505 | Intaking rate control device of internal combustion engine A method and apparatus for controlling the air intake rate of an internal combustion engine, which internal combustion engine includes a deceleration control system responsive to actuation of an idle switch during deceleration for bypassing an intake thro... | 08/20/1991 |
| 4987871 | Operation control system for internal combustion engines at and after starting An operation control system for internal combustion engines at and after starting has an engine temperature sensor, a control valve for controlling the amount of intake air to be supplied to the engine, and a valve opening determining device responsive to... | 01/29/1991 |
| 4928659 | Apparatus for supplying air-fuel mixture in internal combustion engine An apparatus for supplying an air-fuel mixture through a collecting passage of an intake manifold to a cylinder of an internal combustion engine. The flow of the air-fuel mixture from the intake passageway of a throttle body is discharged transversely int... | 05/29/1990 |
| 4895126 | Flow rate control system A flow rate control system for controlling the idling rpm of an engine of a vehicle to a predetermined level in accordance with the temperature of cooling water or outdoor air, so as to eliminate hunting occurring in the flow rate of air supplied to the e... | 01/23/1990 |
| 4886035 | Air-fuel ratio control method for an internal combustion engine An air-fuel ratio control method which controls the amount of the intake side secondary air in accordance with either the engine temperature or both of the engine temperature and the intake air temperature upon the engine re-start under a high engine temp... | 12/12/1989 |
| 4879982 | Method of and apparatus for controlling engine revolution speed A method of and an apparatus for controlling the revolution speed of an engine, suitable for use in an automobile having an automatic transmission. Flow rate of auxiliary intake air by-passing a throttle valve is controlled by an auxiliary air control val... | 11/14/1989 |
| 4870944 | Auxiliary air control valve for engine An auxiliary air control valve for an engine, comprising a valve casing which has an air inlet port and an air outlet port, and a valve seat having a valve port of prescribed diameter; a valve element which is disposed in the face of the valve seat to con... | 10/03/1989 |
| 4825829 | Idle speed control system for an automotive engine A cold-engine operation detector is provided for producing a cold-engine signal when engine temperature is lower than a predetermined temperature, and an idle engine speed detector is provided. A dead zone for input of engine speed with respect to desired... | 05/02/1989 |
| 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 |
| 4739739 | Fuel-injection control system for an internal combustion engine A fuel-injection control system for an internal combustion engine capable of ensuring the stable and proper backup operation of the engine in case of a failure of an intake-air sensor without suffering from any substantial influence from the amount of int... | 04/26/1988 |
| 4727850 | Secondary air control device for internal combustion engines A secondary air control device for an internal combustion engine wherein the secondary air is introduced into the engine intake downstream of the carburetor in response to sudden increases in vacuum, such as upon rapid deceleration of the vehicle and in t... | 03/01/1988 |
| 4724818 | Intake air control system for an internal combustion engine A bypass is provided around a throttle valve of an engine, and a solenoid operated on-off control valve provided in the bypass so as to control flow of intake air. When the engine is accelerated in the coasting of a vehicle, an acceleration signal is prod... | 02/16/1988 |
| 4724808 | Idle revolution control device for internal combustion engine An idle revolution control device includes a water temperature sensor, a filter means and a control means which is constituted with a central processing unit and an interface connecting the water temperature sensor and the central processing unit. The fil... | 02/16/1988 |
| 4716871 | Intake system for engine In an intake system having a bypass passage for introducing auxiliary air to the engine, a base amount of auxiliary air is first determined according to the engine operating condition. A target idling speed is calculated according to the engine temperatur... | 01/05/1988 |
| 4690121 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation An air intake side secondary air supply system for an internal combustion engine having an air intake side secondary air supply passage and an O2 sensor controls a duty ratio of opening and closing of an open/close valve disposed in the air int... | 09/01/1987 |
| 4688534 | Idling speed control device of an internal combustion engine An idling speed control device in an internal combustion engine comprising an idling speed control valve arranged in a bypass bypassing the throttle valve of the engine. The valve is fully opened at the start of the engine and closed to a controlled rate ... | 08/25/1987 |
| 4672936 | Intake air control system for an automotive engine A system for controlling the amount of intake air of an engine at cold engine operation. A control valve is provided in a bypass around a throttle valve of the engine. The opening degree of the control valve is determined by the opening degree of the thro... | 06/16/1987 |
| 4648374 | Air intake side secondary air supply system for an internal combustion engine The so called air intake side secondary air supply system for an internal combustion engine having a choke valve in an intake air passage supplies an air intake side secondary air into the intake air passage so that the air-fuel ratio is feedback controll... | 03/10/1987 |
| 4561394 | Air intake side secondary air supply system for an internal combustion engine An air intake side secondary air supply system for an internal combustion engine equipped with an automatic choke valve and a fast idle system is provided with a detection means for detecting an operating condition of the engine in which the fast idle sys... | 12/31/1985 |
| 4557234 | Method and system for controlling idle speed in an internal combustion engine A bypass passage bypassing a throttle valve and communicating a portion upstream of the throttle valve with a portion downstream of the throttle valve is blocked when an engine speed is increased to the upper limit value or more of a predetermined range o... | 12/10/1985 |
| 4549512 | Intake air amount control apparatus of internal combustion engine An intake air amount control apparatus of an internal combustion engine controls an air control valve provided at a by-path formed with respect to a throttle valve which is provided in an intake air path of the engine. When the open-loop control mode of t... | 10/29/1985 |
