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Class 123/403 - Throttling (e.g., volume varying using throttle valve)


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter in which the flow of fuel, oxidant, or combustible
No. of patents: 147
Last issue date: 05/01/2012


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NumberTitleIssue Date
8166950Variable ratio throttle control
A variable ratio throttle control is disclosed for an off road utility vehicle. The variable ratio throttle control includes a butterfly throttle on a throttle shaft pivotably mounted to a throttle body, a bell crank on the throttle shaft, and a lever extension exte...
05/01/2012
8161940Spark ignition type internal combustion engine
Provided is a spark ignition type internal combustion engine comprising a variable compression ratio mechanism (A) capable of changing a mechanical compression ratio, and a variable valve timing mechanism (B) capable of controlling the closing timing of an intake va...
04/24/2012
8087397Method and system for controlling vacuum
An engine with a two vacuum sources is disclosed. In one example, a valve position is adjusted in when engine load is low and intake manifold pressure is low to arbitrate vacuum between the two vacuum sources. The approach may increase engine operating efficiency du...
01/03/2012
8051834Method for controlling the EGR and the throttle valves in an internal combustion engine
A method and system are provided for controlling a throttle valve and an EGR valve in internal combustion engine. The method includes, the steps of measuring an actual fresh mass air flow value entering the engine, determining an exhaust oxygen concentration set poi...
11/08/2011
8051833Throttle valve control apparatus of an internal combustion engine
The invention provides a throttle valve control apparatus of an internal combustion engine having at least a first cylinder group (B1) and a second cylinder group (B2). A first throttle valve (S1) is arranged in an intake passage (31) of ...
11/08/2011
7942127Vehicle stability and surge control
A system and method are described for operating an engine of a vehicle, the engine having a combustion chamber. In one example, the method may include controlling a stability of the vehicle in response to a vehicle acceleration; and adjusting dilution in the combust...
05/17/2011
7779812Vehicle stability and surge control
In one example, a method is described for operating an engine of a vehicle, the engine having a combustion chamber. The method may include controlling a stability of the vehicle in response to a vehicle acceleration; and adjusting dilution in the combustion chamber ...
08/24/2010
7721708Control system for general-purpose engine
In a system for controlling a general-purpose air-cooled internal combustion engine having two cylinders each equipped with a throttle valve and a fuel injector, and a cooling fan that selectively directs air onto the cylinders, a throttle driver selectively drives ...
05/25/2010
7654247Method and device for controlling starting of gas engine
A gas engine has a starting operation mode in which fuel gas flow is controlled based on actual mixture flow rate and adequate excess air ratio prescribed for each of detected values of operating conditions of the engine and then mixture flow is controlled so that e...
02/02/2010
7469677Throttle valve device
A butterfly valve device (1), particularly an electrically actuated butterfly valve device (1) e.g. for use in an intake manifold of an internal combustion engine is designed in such a way that the effort required for assembling the intake manifold can...
12/30/2008
7418945Fresh gas system and operating method for a piston engine
A fresh gas system for a piston engine has a collecting line for supplying fresh air to multiple individual lines. The fresh gas system has the collecting line which is unthrottled and a control unit for actuation of the additional valves is designed so that it subd...
09/02/2008
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
7380538Reverse operation of a vehicle
A vehicle has a vehicle body, a seat, an engine, an ECU, a throttle body, a throttle valve, a throttle valve actuator, a throttle operator, and a throttle operator position sensor. A shifter is disposed on the vehicle in proximity to the seat for selecting a vehicle...
06/03/2008
RE40350Fail safe throttle positioning system
A fail-safe throttle positioning device is disclosed for an engine induction system. A throttle body is provided having a fluid passage. A movable throttle valve is disposed within the fluid passage for at least idle speed control. An actuator mechanism is connected...
06/03/2008
7370621Intake manifold with air vessel for an internal combustion engine
An intake manifold for an internal combustion engine having a number of cylinders; for each cylinder, the intake manifold has a respective intake pipe connecting the intake manifold to the cylinder and regulated by an intake valve; and the intake manifold also has a...
05/13/2008
7367314Governor system for gasoline powered vehicles
A governor system is provided for limiting a degree of throttle travel of a throttle as a function of rotational speed of a drive axle. The governor system includes a governor shaft rotatably supported by the drive axle and operably interconnected to internal compon...
05/06/2008
7360514Method for operation of an internal combustion engine
A process for operating an internal combustion engine with a charging device such as a turbocharger and with an intake valve drive mechanism which is variable with respect to its intake valve control times and/or its intake valve stroke. Upon recognition of a positi...
04/22/2008
7360515Control apparatus for an internal combustion engine
A variable valve mechanism performs a valve lift switching operation for an intake valve. ECU defines valve lift switching characteristics corresponding to the engine operating region and executes the valve lift switching operation based on the switching characteris...
04/22/2008
7347183Control apparatus and control method for engine
For accurately estimating an air quantity flowing into a cylinder at the time of operating an intake control valve, a control apparatus for an engine according to the present invention is provided with an intake control valve which can open/close an intake passage i...
03/25/2008
7334566Method and device for monitoring a pulse charging valve of an internal combustion engine
The invention relates to an internal combustion engine comprising a manifold, from which an induction pipe leads to an intake of a cylinder of the internal combustion engine. A gas intake valve is located at the intake of the cylinder. A pulse charging valve is posi...
02/26/2008
7314028Control apparatus for internal combustion engine
A control apparatus for an internal combustion engine for controlling the engine while compensating for a deviation of an intake air amount from the proper value, caused by the thermal expansion and contraction of a variable intake mechanism thereof, which makes it ...
01/01/2008
7311083Engine method
A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention ach...
12/25/2007
7305967Control apparatus for an internal combustion engine
In throttle control, a throttle opening is set with sufficient control accuracy in accordance with the operating state of an engine despite variations in a throttle body and various kinds of sensors. A target effective opening area is calculated from a target amount...
12/11/2007
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
7282170Thermoplastic throttle body
The invention relates to a process of making a throttle body comprising injection-moulding of a reinforced thermoplastic composition, wherein a polyethylene terephthalate composition containing a nucleating agent and 25-60 mass % of glass-fibres is used as the reinf...
10/16/2007
7281368Nodischarge quantity estimation method for internal combustion engine
In an NOx discharge quantity estimation method for an internal combustion engine equipped with an EGR apparatus, the gas components (e.g., oxygen molecules and NOx) of intake gas taken into a combustion chamber are assumed to be uniformly distr...
10/16/2007
7275459Spring loaded device assembly
A spring loaded device assembly includes a spring loaded device for use with hydraulic systems, the spring loaded device including: a spring mechanism disposed in an outer tubular member; an inner tubular member movably disposed in one end of the outer tubular membe...
10/02/2007
RE39851Internal combustion engine having a variable valve train
An internal combustion engine is provided with a variable valve train capable of altering opening and closing timings and/or opening amounts of at least one of an intake valve and an exhaust valve of an internal combustion engine. The internal combustion engine is c...
09/25/2007
7246794Carburetor 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
7222603Subunit for an additional control valve device used for an intake pipe of a reciprocating internal combustion engine
Disclosed is a subunit having a hollow cylinder which is provided with an opening on at least one face and in which a spring bearing is arranged on the inside of the face and a first valve spring resting against said spring bearing. A shaft that is guided within the...
05/29/2007
7222594Control apparatus for an internal combustion engine
A variable valve mechanism performs a valve lift switching operation for an intake valve. ECU defines valve lift switching characteristics corresponding to the engine operating region and executes the valve lift switching operation based on the switching characteris...
05/29/2007
7213550Internal combustion engine and valve timing control method
An internal combustion engine includes: a variable valve timing mechanism for changing a valve timing of at least one of an intake valve and an exhaust valve; a pressure for detecting an intake pressure and an exhaust pressure of the internal combustion engine that ...
05/08/2007
7210454Internal combustion engine capable of selectively resting certain cylinders during low-load operation, and method of using same
An internal combustion engine having cylinders capable of selectively resting during engine operation is capable of eliminating step increases in engine output when the number of operative cylinders is changed. The internal combustion engine includes a plurality of ...
05/01/2007
7174877Throttle valve opening and closing device
The invention is intended to simplify a default mechanism of a throttle valve opening and closing device for the purpose of improving mountability of the device to a vehicle. When a motor generate no driving forces, a throttle valve is held in a position (1) ...
02/13/2007
7162999Governor system for gasoline powered vehicles
A governor system is provided for limiting a degree of throttle travel of a throttle as a function of rotational speed of a drive axle. The governor system includes a governor shaft rotatably supported by the drive axle and operably interconnected to internal compon...
01/16/2007
7143743Valve position controller
The throttle position corresponding to the rotational angle of the throttle valve is calculated based on electric signals output from a rotor position detector constituted by three Hall ICs that detect the rotational position of a magnet rotor of a brushless DC moto...
12/05/2006
7137408Universal valve switch
A universal valve switch for signaling the operative state of a valve assembly is disclosed that is attached to the body of the valve assembly using a bracketing arrangement. The valve switch comprises a housing defining a chamber and an aperture formed through the ...
11/21/2006
7107948Engine system and vehicle
An engine system includes an engine and an engine control unit. The engine includes an intake valve that opens and closes the opening of a cylinder, a valve actuator that drives the intake valve and can arbitrarily control the lift amount of the intake valve, an int...
09/19/2006
7100866Control system for a flying vehicle
In one embodiment of the present invention there is described a vehicle having a propeller mechanism for propelling the vehicle in a horizontal direction. The vehicle includes a transmitter positioned on the bottom of the vehicle for transmitting a signal from the v...
09/05/2006
7077103Method for regulating the filling of an internal combustion engine
Disclosed is a method for regulating the filling of an internal combustion engine to which a combustion air mass flow is fed. Said combustion air mass flow is regulated by a first and a second actuator which are triggered regarding the position thereof. The second a...
07/18/2006
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