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Class 123/532 - Air is bled from the cylinder on the compression stroke in that cylinder


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter in which means is provided to bleed a small
No. of patents: 33
Last issue date: 04/10/2012


NumberTitleIssue Date
8151770Engine fuel supply system
An engine fuel supply system is provided at a reduced cost by using a HC dosing pump that supplies fuel into an exhaust pipe also as a pump for a cylinder fuel supply device. When a signal is generated to command air removal from a cylinder fuel supply passage, the ...
04/10/2012
6988477Control apparatus for an internal combustion engine and control method thereof
An engine is cranked by a motor generator at a start time of the engine. An engine ECU opens an intake valve or an exhaust valve during a compression stroke using a valve control mechanism during a period from when cranking is started until when a predetermined cran...
01/24/2006
6959699Injection of fuel vapor and air mixture into an engine cylinder
One strategy for reducing undesirable emissions from internal combustion engines relates to finding ways to better mix fuel and air prior to combustion. One such method is commonly referred to as homogenous charge compression ignition (HCCI); however, that strategy ...
11/01/2005
6298825Method for igniting a multi-cylinder reciprocating gas engine by injecting an ignition gas
An ignition method for a multi-cylinder reciprocating gas engine wherein, in order to start a combustion cycle, a compressed, substantially homogeneous and not self-igniting combustion gas-air mixture contained in the corresponding cylinder chamber to be ...
10/09/2001
6071096Pneumatic cylinder, in particular for actuating fume extraction valves in fume and heat extraction plants
A pneumatic cylinder for actuating fume extraction valves in fume and heat extraction plants has a piston (2) that may be actuated from both sides with at least one working surface and that can be made to slide by pressurised air in a cylinder (1) with at...
06/06/2000
5870998Mixture preparation in a spark ignited engine
An internal combustion engine is described having one or more combustion chambers 10 each having an intake port 16, a fuel injector assembly 30 for injecting fuel into the intake port 16 and means 20, 22, 24, 26 for supplying pressurised gas to assist in ...
02/16/1999
5647336Device for introducing fuel into a combustion chamber of an internal combustion engine
A device for introducing fuel into the combustion chamber of an internal combustion engine, includes a unit for fuel delivery and an injection valve for withdrawing compressed gas from the cylinder and injecting the gas together with the delivered fuel in...
07/15/1997
5590635Device for introducing fuel into the combustion chamber of an internal combustion engine
A device for introducing fuel into the combustion chamber of an internal combustion engine, includes an injection valve for withdrawing compressed gas from the cylinder and injecting the gas together with the fuel into the cylinder, a mixing chamber in th...
01/07/1997
5390647Air charging valve for an air forced fuel injector
A air charging valve for use with a air forced fuel injection system. The charging valve admitting and storing compressed air from the engine cylinder and releasing it into the fuel injector to force out the air/fuel mixture into the engine cylinder. The ...
02/21/1995
5215064Method for the pneumatic injection of fuel into a two stroke engine and corresponding two stroke engine
An engine including at least one cylinder in which a piston moves delimiting a combustion chamber and a housing, with at least one opening for allowing fresh air to enter the combustion chamber and one pneumatic injection device. The fuel is atomized or s...
06/01/1993
5119779Method and device for feeding fuel into the combustion chamber of an internal combustion engine
In a method and device for feeding fuel into a combustion chamber of a cylinder of an internal combustion engine the following steps are discerned to withdraw a small amount of compressed hot gas via a valve opening into the combustion chamber of the cyli...
06/09/1992
5095881Cylinder injection type internal combustion engine
A fuel air injection system for a two cycle crankcase compression internal combustion engine wherein a pressure accumulator is provided in the injector and the accumulator is charged with a compressed charge from the combustion chamber into which the inje...
03/17/1992
5048489Hydraulically operated valve with controlled lift
A hydraulically operated valve with controlled lift, in particular a fuel/gas injection valve for internal combustion engines, has a stop face fixed on the valve stem. For accurate control of the opening of the valve a stop cam is provided, which is drivn...
09/17/1991
5027765Method of pneumatic injection of fuel into a cylinder of a reciprocating internal combustion engine and a corresponding injection device
Scavenging a cylinder of an engine with fuel-free fresh air and injection with atomized liquid fuel by a pressurized gas are accomplished independently, at specific moments during by the operating cycle of the engine. The fuel is atomized and injected int...
07/02/1991
5025769Device for feeding fuel into a combustion chamber of an internal combustion engine
For control of the injection rate of a device for feeding fuel into the combustion chamber of an internal combustion engine, comprising an injection valve opening into the combustion chamber, which is used for taking compressed gas from the cylinder and i...
06/25/1991
5020494Method and device for feeding fuel into the combustion chamber of an internal combustion engine
In a method and device for feeding fuel into a combustion chamber of a cylinder of an internal combustion engine the following steps are discerned to withdraw a small amount of compressed hot gas via a valve opening into the combustion chamber of the cyli...
06/04/1991
4974571Pulsed jet combustion generator for non-premixed charge engines
A device for introducing fuel into the head space of cylinder of non-premixed charge (diesel) engines is disclosed, which distributes fuel in atomized form in a plume, whose fluid dynamic properties are such that the compression heated air in the cylinder...
12/04/1990
4944277Cylinder entrapment system with an air spring
The invention provides an internal combustion engine comprising a cylinder, a piston reciprocal in the cylinder, an accumulation chamber, a supply conduit including a check valve and extending between the cylinder and the accumulation chamber, a supply va...
07/31/1990
4934346Sidewall cylinder entrapment valve for internal combustion chamber
The invention provides an internal combustion engine comprising a cylinder having a head end and adapted to have air and fuel combusted therein and a piston reciprocate therein relative to the head end, an exhaust port adapted to conduct combusted air and...
06/19/1990
4892065Method concerning the delivery of fuel into the combustion chamber of a diesel engine and a device for realizing the method
The delivery of fuel into the combustion chamber of a diesel engine is aided by blowing in an amount of compressed air which is small compared to the stroke volume of the diesel engine after the stream of fuel has been injected into the combustion chamber...
01/09/1990
4865002Fuel supply system for internal combustion engine
Disclosed herein is an internal combustion engine comprising a cylinder, a piston reciprocal in the cylinder, an accumulation chamber, a supply conduit which includes a valve and which communicates between the cylinder and the accumulation chamber for sup...
09/12/1989
4846114Method concerning the delivery of fuel into the combustion chamber of a diesel engine and a device for realizing the method
The delivery of fuel into the combustion chamber of a diesel engine is aided by blowing in an amount of compressed air which is small compared to the stroke volume of the diesel engine after the stream of fuel has been injected into the combustion chamber...
07/11/1989
4771754Pneumatic direct cylinder fuel injection system
A pneumatic direct cylinder fuel injection system for an internal combustion engine includes a pneumatic injector for each cylinder so as to supply a pressurized air/fuel charge to an associate stratified charge chamber forming a part of the associate com...
09/20/1988
4765304Internal combustion engine with compressed air collection system
Disclosed herein is an internal combustion engine comprising a plurality of cylinders respectively including a head end, an exhaust port, and a pressure port located between the head end and the exhaust port, a like plurality of pistons respectively movab...
08/23/1988
4754735Control of fuel injection apparatus for internal combustion engines
A fuel injection apparatus for an internal combustion engine comprising a metering device to adjust the quantity of fuel delivered each cycle of the device in response to conditions in the engine induction passage, a control activating said device to effe...
07/05/1988
4716877Device and method for injecting fuel into an engine, assisted by compressed air or gas
A device and method are provided for the pneumatic injection of fuel into an engine. The device comprises at least one auxiliary duct having two ends one of which is connected to an exhaust pipe and the other to an injection member....
01/05/1988
4406404Diesel fuel injection nozzle
A nozzle for the air injection of fuel into the combustion chamber of a diesel engine cylinder. Included is a plunger reciprocably mounted in a nozzle body to define an air chamber for receiving compressed air from the combustion chamber during the compre...
09/27/1983
4205638Fluid power supply system
A double acting Diesel cycle hot gas engine comprising a plurality of engine cylinders, each having a free piston unit adapted to perform work, providing a continuous flow of compressed air to an energy consumption source and to a storage tank connected t...
06/03/1980
4201160Fuel injection systems
A fuel injection system for supplying fuel to a combustion space of an internal combustion engine includes a fuel injection nozzle having a fuel inlet and outlets which direct fuel into the combustion space. A piston is provided within a cylinder one end ...
05/06/1980
4157084Fuel injection system and method for internal combustion engine
An air and fuel mixing device incorporates a Venturi throat or other mixing means for feeding a highly combustible mixture of fuel and pressurized air to an electrical fuel injector valve or directly to the intake manifold in a system for starting an inte...
06/05/1979
4141329Internal combustion engine fuel injection system
A fuel injection system is disclosed for an internal combustion engine having at least one cylinder and a piston operating therein to define with the cylinder head a combustion chamber wherein air is compressed while the piston is moving to one end of its...
02/27/1979
4108136Internal combustion engine control system
An apparatus and method for improving the combustion process of an internal combustion engine is disclosed. A prechamber containing a combustible mixture is designed to generate a torch eminating therefrom upon ignition; the torch is controlled to extend ...
08/22/1978
3981286Method and apparatus for forming and burning a fuel-air-mixture in an air-compressing piston internal combustion engine
A method for forming and burning a fuel-air-mixture in an air compressing piston type internal type combustion engine. At least a portion of the air compressed in the combustion space of the working cylinder is tapped off. The tapped off portion is passed...
09/21/1976
 
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