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Class 123/76 - Scavenging


Subclass of Class 123 - Internal-combustion engines
Definition: Four-cycle internal combustion engines in which a volume
No. of patents: 22
Last issue date: 01/15/2008


NumberTitleIssue Date
7318314Method of controlling a supercharged internal-combustion engine with at least two cylinders and engine using such a method
A supercharged internal-combustion engine has at least two cylinders with a combustion cycle during which a cylinder (10) of the engine is in the intake phase with burnt gas scavenging in the vicinity of the top dead center (TDC) thereof while another cylinde...
01/15/2008
7314043Turbo-lag compensation system for an engine
A boost system for an engine, comprising an engine having at least a cylinder; a fuel injector coupled to said cylinder; a compression device coupled to said engine; a compressed air storage device coupled to said compression device and configured to deliver compres...
01/01/2008
7275516System and method for boosted direct injection engine
A method for operating and engine having a cylinder with at least an intake and exhaust valve, comprising of performing a combustion cycle in the cylinder in which exhaust valve closing occurs after intake valve opening thereby creating valve overlap, boosting intak...
10/02/2007
7069887Engine valve actuation system
An engine valve actuation system is provided. An intake valve is moveable between a first position to prevent a flow of fluid and a second position to allow a flow of fluid. A cam assembly is connected to move the intake valve between the first position and the seco...
07/04/2006
5448971Internal combustion engine and an improved rotary inlet valve for use therewith
The internal combustion engine includes a working cylinder, a compressed air supply, an injector for supplying a gas and fuel mixture, an exhaust valve and an inlet valve. The inlet valve delivers both gas under pressure and gas and fuel mixture to the wo...
09/12/1995
5140952Method of and apparatus for improving the operation of an engine
A method for improving the operation of an engine including a cylinder space, a piston movable therein, at least one inlet valve having an inlet duct associated therewith, and at least one outlet valve having an outlet duct associated therewith includes p...
08/25/1992
5131354Method of operating a two-stroke-cycle engine with variable valve timing in a four-stroke-cycle mode
Method for operating an engine having a piston reciprocable in a cylinder, an intake port for admitting air, an exhaust valve controlled by a valve actuator independently of crankshaft position, spark ignition, and fuel injection. During a first stroke th...
07/21/1992
5080081Four-cycle heat insulating engine
This four-cycle head insulating engine has combustion chambers which consist of cylinder head lower surface portions and cylinder liner upper portions, and which are formed in a heat insulating manner; exhaust valves provided in exhaust ports formed in th...
01/14/1992
5025765Heat-insulated four-cycle engine with prechamber
A heat-insulated four-cycle engine includes a heat-insulated main combustion chamber, a prechamber having an ejection port communicating with the main combustion chamber and associated with an exhaust valve, a projection mounted on the piston head surface...
06/25/1991
49985134-stroke, stratified gas engine
A 4-stroke, internal combustion engine having two intake valves for each cylinder wherein a single rocker-arm assembly actuates both of the intake valves in a timed sequence to provide a stratified charge to the cylinder....
03/12/1991
4986224Four cycle diesel engine with pressurized air cooling system
An internal combustion engine apparatus includes a cylinder having a head, an intake valve cooperating with the head for selectively allowing passage of fluids into the cylinder and an exhaust valve for selectively allowing passage of fluids out of the cy...
01/22/1991
4809649Four-stroke internal-combustion engine and procedure for operating such an engine
A four-stroke cycle internal combustion engine including a scavenging air system to minimize the emission of oxides of nitrogen. The engine includes a scavenging valve to admit scavenging air into the cylinder, and the scavenging valve is so oriented as t...
03/07/1989
4487172Sleeve valve internal combustion engine
A single-sleeve valve engine has narrow quasi-elliptic sleeve motion which improves exhaust and intake valving and permits the conversion of standard engine blocks. The sleeve is thick walled, and is molded of low density material which permits significan...
12/11/1984
4385598Engine system
An engine system comprises an internal combustion engine and an exhaust gas treatment system, such as a three-way catalytic converter or an oxidation catalytic converter. The engine has an additional intake means, in addition to a main intake means for ad...
05/31/1983
4273083Distribution system for the intake and exhaust of a super charged internal combustion engine
The invention relates to a distribution system for the intake and exhaust in an internal combustion engine. According to the invention, a cylinder is connected to an exhaust manifold by means of a connecting valve 10. An intake mainfold 10 opens into the ...
06/16/1981
4232641Method and device for improving the efficiency of internal combustion engines
A method for improving the efficiency of an internal combustion engine such as a Diesel engine, by ensuring, on the one hand, efficient cylinder scavenging, particularly at light engine loads and/or low speeds, and on the other hand, a reduction of the ef...
11/11/1980
4217866Four-stroke reciprocatory internal combustion engine and method of operating such an engine
A four-stroke reciprocatory internal combustion engine has a scavenging phase in which air is admitted under pressure into the cylinder and has a swirl generating phase in which a high-speed jet of air is admitted under pressure into the cylinder so as to...
08/19/1980
4210109Multi-cylinder internal combustion engine
An internal combustion engine has at least one cylinder acting as an air pump for the admission of scavenging air into the remaining cylinders....
07/01/1980
4194473Four-cycle spark ignition internal combustion engine
In a four-cycle spark-ignition internal combustion engine, knocking under a high compression ratio can be prevented by replacing the burnt gas which remains within the cylinder at the end of an exhaust stroke by a gas, such as exhaust gas, which is at a t...
03/25/1980
4173203Engine system
Disclosed herein is an engine system which comprises an internal combustion engine, an air admission system to admit scavenging air, under pressure, into an engine cylinder through an additional intake valve and an EGR system. The air admission system inc...
11/06/1979
4149493Multi-cylinder internal combustion engine
A method of operating an internal combustion engine having one or a plurality of cylinders with piston means movable therein wherein a controlled quantity of compressed air is introduced into the combustion chamber when the piston is substantially in its ...
04/17/1979
4127162Modular air conditioning apparatus
An improved modular air conditioning apparatus featuring selective panel enclosures, plug-in controls, orientation selection and servicing capability, the apparatus comprising an open box frame having three access sides which are each selectable for enclo...
11/28/1978
 
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