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Class 123/179.18 - Intake air control


Subclass of Class 123 - Internal-combustion engines
Definition: Apparatus wherein a means regulates the flow of incoming
No. of patents: 217
Last issue date: 02/14/2012


1            
NumberTitleIssue Date
8113166Auto choke device for an engine
An auto choke device for an engine includes a choke valve for varying the opening of an intake passage of the engine, and a starter motor for starting the engine. Upon activation of the starter motor, the choke valve starts valve opening motion from a fully closed p...
02/14/2012
8061322Engine starting system with throttle override
A starting system for a combustion engine including a carburetor with a throttle valve moveable between idle and wide open positions, a throttle control to control movement of the throttle valve during normal operation of the engine, and a linkage between the thrott...
11/22/2011
7997245Fuel injection control apparatus
A fuel injection control apparatus includes: an internal combustion engine; a fuel injection unit provided in the internal combustion engine; an intake state detection unit that detects an intake state value indicating an intake state of the internal combustion engi...
08/16/2011
7975666Quick engine startup system and method
A technique is provided for improved response of internal combustion engines to increased load demands. The engine is equipped with an air storage tank that stores compressed air. The air may be stored at an elevated pressure (e.g., manifold air pressure) during nor...
07/12/2011
7712446Control device and method of controlling an internal combustion engine
A control device of an internal combustion engine includes: a target negative pressure setting section that set a target negative intake pipe pressure during cold acceleration to a negative intake pipe pressure larger than a negative intake pipe pressure prior to th...
05/11/2010
7681544Control device for engine of power equipment apparatus
A control device is configured for use with an engine of a power equipment apparatus. The control device includes a base, a first knob, and a second knob. The first knob is positioned adjacent to the base and is rotatable about an axis with respect to the base while...
03/23/2010
7503301Throttle position control during an engine start
A method for improving engine starting for an engine having a variable event valvetrain is described. According to one aspect of the description, valve timing during a start can be set so that combustion stability and emissions may be improved. ...
03/17/2009
7418946Engine start control apparatus and method
An engine start control apparatus includes an intake air amount control device for controlling an amount of air supplied to a combustion chamber, a fuel supply device for injecting fuel to be fed into the combustion chamber, and an igniting device for igniting the f...
09/02/2008
7406937Method for operating an internal combustion engine
A method for operating an internal combustion engine having at least one triggerable intake valve and at least one triggerable discharge valve, in which the internal combustion engine is directly started in a start-up operating mode and, following the start, is oper...
08/05/2008
7401579Valve timing control device
An intake port of an internal combustion engine 10 is provided with a fuel injection valve 22. An intake adjustment mechanism 30 for varying the valve timing of an intake valve 24 and an exhaust adjustment mechanism 32 for varying ...
07/22/2008
7401606Multi-stroke cylinder operation in an internal combustion engine
A method for starting an internal combustion engine of a hybrid-electric vehicle having a controller, the engine having a plurality of cylinders, each with at least an intake and exhaust valve, each of which may be held in a position for a cycle of a cylinder, the m...
07/22/2008
7395811Choke device for an internal combustion engine intake system
A choke device for an intake system of an internal combustion engine; the choke device has at least one choke body fitted movably inside an intake conduit, and an actuating device for moving the choke body to and from a work position in which the choke body reduces ...
07/08/2008
7377496Carburetor for two-cycle engine
An interlocking lever having first and second cam faces is mounted on a throttle valve stem, and a throttle valve is arbitrarily opened to perform start-up in a state in which the first cam face makes contact with the choke valve lever and the interlocking lever is ...
05/27/2008
7369932System and method for turbine engine fault detection using discrete event system modeling
A system and method is provided for fault detection in a turbine engine. The fault detection system and method uses discrete event system modeling to provide improved fault diagnosis and prognosis. The fault detection system and method receives sensor taken at multi...
05/06/2008
7357109Internal combustion engine and control method thereof
Embodiments are disclosed to reliably carry out engine starting without cranking. Using an internal combustion engine 1, when an idle stop condition is established, a third path switching valve 28 that is provided at the connection of the compressed ai...
04/15/2008
7341044Method and control device for regulating the air-fuel mixture provided to an engine
A method and device is provided for regulating the air-fuel mixture provided to an engine of a stand-by electrical generator during the exercise thereof. The engine is exercised at a predetermined speed less than the normal operating speed of the engine and each cyl...
03/11/2008
7337757Carburetor arrangement for an internal combustion engine
A carburetor (1) for an internal combustion engine has an intake channel section (3) wherein a throttle element and a choke element are supported to pivot about respective rotational axes (34, 35). The carburetor (1) has a starter unit wh...
03/04/2008
7334551Combustion engine pull cord start system
A pull-cord start system has a recoil pulley coupled to a crankshaft of a combustion engine and a pull-cord wound about the recoil pulley which is pulled by an end user to rotate the recoil pulley and thereby start the engine. A throttle override device of the pull-...
02/26/2008
7331326Carburetor automatic control system in engine
A carburetor automatic control system in an engine includes, a temperature-sensitive operating device for operating a choke valve so that the choke valve is opened with a temperature increase of the engine and a governor for opening and closing a throttle valve to m...
02/19/2008
7325532Method for the torque-oriented control of an internal combustion engine
A method for the torque-oriented control of an internal combustion engine, in which a sum torque (MSUM) is calculated from a set torque value (MSW) and a friction torque (MF). A set injection quantity (mSL) for driving the internal combustion engine is calculated fr...
02/05/2008
7318407Governor with low droop having opposed spring
A governor for an engine including a speed sensor, a throttle member, a linkage, a primary spring, and a secondary spring. The speed sensor moves in response to changes in a speed of the engine. The linkage is coupled between the speed sensor and the throttle member...
01/15/2008
7302929Air bypass device in multiple throttle body
To improve an air bypass device in bypass air flow and designing freedom, a locking stepped part 3, a bush inserting hole 4, and a valve body drive mechanism inserting hole 5 are provided above an upper end 2a of a valve body guidi...
12/04/2007
7296550Starting an engine having a variable event valvetrain
A method for improving engine starting for an engine having a variable event valvetrain is described. According to one aspect of the description, valve timing during a start can be set so that combustion stability and emissions may be improved. ...
11/20/2007
7287500Start controller for internal combustion engine
At an intake timing of an initial combustion cylinder, an actual intake valve timing is adjusted to a target intake valve timing corresponding to a target intake air flow rate of the initial combustion cylinder. At intake timing of the other cylinders which contribu...
10/30/2007
7284522Automatic choke
A choke valve is controlled finely suited to the running state of an engine. A throttle valve 8 and a choke valve 9 are provided in series on an intake pipe 6, and the opening degree of the choke valve 9 is controlled by a stepping motor ...
10/23/2007
7278395Manually operated implement driven by an internal combustion engine
A manually guided implement driven by an internal combustion engine having a carburetor that is actuated by a throttle lever arrangement, which includes a throttle lever that is mounted in the implement so as to be pivotable about a pivot axis, and also includes a t...
10/09/2007
7280909Valve control for an engine with electromechanically actuated valves
A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled to improve engine fuel economy. Further, the method can adjust valve operation to provide air-fuel charge motion and increase combustion stab...
10/09/2007
7275508Combustion engine pull-starter
A pull-starter for a combustion engine of an engine-powered apparatus having a startup element automatically actuated upon initial pulling of a pull-cord. The pull-cord is attached to and wound around a recoil pulley, routed at least partially around a portion of a ...
10/02/2007
7267104Internal combustion engine start-up control
A variable valve mechanism (12a, 12b) varies a lift amount and an opening/closing timing of an intake valve (10) of an internal combustion engine (1). During a first period in an engine start operation, wall flow is suppress...
09/11/2007
7255081Method and device for improving the starting response of an internal combustion engine
The present invention relates to methods for charging at least one combustion chamber (12) of a spark-ignition combustion engine (10) with fuel and air. At least one combustion chamber charge is produced during a shutoff phase of the internal-combustio...
08/14/2007
7252063Engine generator
A front panel of an engine generator can have a recess including an upper area and a lower area, separated from each other by a partition. A cock operating portion and a choke operating portion can be laterally aligned with each other in the upper area, and a recoil...
08/07/2007
7246591Automatic choke control system for general-purpose engine
In an auto-choke system for a general-purpose engine, it is determined whether the operator has operated a combination switch to enable ignition in the engine and based on the result of this determination, the operation of a choke motor (actuator) is controlled to r...
07/24/2007
7213555Automatic choke
A choke valve is controlled finely suited to the running state of an engine. A throttle valve 8 and a choke valve 9 are provided in series on an intake pipe 6, and the opening degree of the choke valve 9 is controlled by a stepping motor....
05/08/2007
7213554Valve timing control apparatus for internal combustion engine
A valve timing control apparatus for controlling an opening and closing timing of a valve of an internal combustion engine includes a driving side rotational member synchronously rotated with a crankshaft, a driven side rotational member provided coaxially with the ...
05/08/2007
7204232Carburetor electrically-operated automatic choke system
An electrically-operated automatic choke system of a carburetor includes a choke valve connected to a choke valve closure spring that urges the choke valve in a direction to close it. A wax-type temperature sensitive actuating device is coupled to the carburetor to ...
04/17/2007
7204235Method of managing engine torque upon loss of engine coolant
An engine torque management system of a V-style engine utilizes a cylinder head metal temperature sensor in each cylinder head to detect a temperature. When the sensor temperature rises above a threshold value for a particular time period, the response software shut...
04/17/2007
7201144Operating apparatus of engine in portable working machine
An operating apparatus of an engine in a portable working machine improves an operability of a throttle lever while preventing a Run-on phenomenon or the like. The operating apparatus is provided with a first operating device for operating a throttle valve of the en...
04/10/2007
7191755Idle air control valve stepper motor initialization technique
A system for controlling idle air flow for an engine. The system includes an idle air control valve, a stepper motor, and a controller. The idle air control valve has a first hard stop and a second hard stop. The stepper motor is coupled to the idle air control valv...
03/20/2007
7191746Engine start control apparatus
An engine start control apparatus includes a crank angle sensor, and a stroke discrimination device that discriminates which of engine cylinders is in intake or compression strokes in an engine stopped state. A crankshaft is temporarily reverse-rotated in a reverse-...
03/20/2007
7174871Mechanical compression and vacuum release mechanism
Mechanical compression and vacuum release mechanisms which are of simple construction and which significantly reduce the effort required to start an internal combustion engine. In several embodiments, the compression and vacuum release mechanisms include a centrifug...
02/13/2007
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