U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5285430

Behavior Modification Wristwatch

A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 123/253 - PRECOMBUSTION AND MAIN COMBUSTION CHAMBERS IN SERIES


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter having at least two distinct physical volumes
No. of patents: 20
Last issue date: 06/17/2008


NumberTitleIssue Date
7387103Internal combustion engine
A high thermal efficiency lean-burn spark- ignition two or four stroke engine operable unthrottled suitable for vehicles using gasoline. It uses an indirect combustion chamber and a transfer orifice with or without shaping of the combustion chamber to produce a jet ...
06/17/2008
7387093Internal combustion engine with sidewall combustion chamber and method
An internal-combustion, reciprocating-piston engine operating on the Otto cycle and associated method are provided where a sidewall combustion chamber is employed that is capable of receiving highly-compressed air or a mixture of any gas and fuel from a cylinder whi...
06/17/2008
7216623Internal combustion engine with auxiliary combustion chamber
An internal combustion engine comprises a main combustion chamber part, an auxiliary combustion chamber part, a first communicating passage, a second communicating passage and an igniting component. The auxiliary combustion chamber part includes first and second aux...
05/15/2007
7152572Internal combustion engine
A high thermal efficiency lean-burn spark-ignition two or four stroke engine operable unthrottled suitable for vehicles using gasoline. It uses an indirect combustion chamber and a transfer orifice aligned to produce a jet of air moving in helical swirl motion aroun...
12/26/2006
6935284Power system
A power system includes an internal combustion engine having a primary combustion chamber and a secondary combustion chamber, a first fuel being supplied to the primary combustion chamber, a second fuel being burned in the secondary combustion chamber so as to ignit...
08/30/2005
6892524Latching mechanism for combustion chamber plate of a fastener driving tool
A combustion chamber assembly for use in a combustion tool including a combustion chamber, at least one combustion chamber plate disposed in the chamber, the at least one combustion chamber plate and the chamber members being configured for relative reciprocal movem...
05/17/2005
6848413Method for homogenous charge compression ignition start of combustion control
An internal combustion cylinder assembly includes a cylinder having a combustion chamber and a piston. An intake valve provides a working fluid to the combustion chamber while the piston moves from a top dead center position to a bottom dead center position. A pre-c...
02/01/2005
6739289Method and apparatus for providing a hydrogen enriched fuel to combustion prechamber
A method and apparatus for providing a hydrogen enriched fuel to a combustion prechamber. The method and apparatus includes reforming a quantity of fuel to produce a hydrogen enriched fuel, delivering the reformed fuel to the combustion prechamber, and combining the...
05/25/2004
6390053Reaction chamber isolation check valve and gaseous fuel engine using same
An internal combustion engine includes an engine housing that defines a main combustion chamber separated from a precombustion chamber by a flame communication passage way. A source of gaseous fuel is fluidly connected to one end of a fuel supply passage....
05/21/2002
5875755Low compression ratio internal combustion engine
A low compression ratio internal combustion engine with extended dwell at or near piston top dead center to facilitate substantially complete combustion providing a higher engine output power. A pre-combustion chamber passes high temperature and pressure ...
03/02/1999
5070834Diesel engine with a precombustion chamber
A diesel engine comprising a plurality of cylinders each having a precombustion chamber and a fuel injector. A first camshaft for driving intake valves and a second camshaft for driving exhaust valves are arranged on the cylinder head and extended in para...
12/10/1991
4960089Combustion system
A fuel supply/ignition device for use with a stratified combustion system includes a fuel chamber formed adjacent to a combustion chamber. The fuel chamber is provided with a valve for supplying a liquid fuel and a spark plug for generating a spark. The s...
10/02/1990
4903656Gas engine
A gas engine of a pre-chamber type in which a pre-chamber is arranged in communication to a main combustion chamber, an intake passage is arranged to supply lean mixture to the main chamber, a gas pipe is provided to form rich mixture by fuel gas in the p...
02/27/1990
4487177Apparatus and method for starting a diesel engine using plasma ignition plugs
A diesel engine is started by plural ignition plugs, each installed in a swirl chamber of a corresponding cylinder. Each ignition plug includes (a) an elongated center electrode, (b) a fuel-absorbent electrical insulator that encapsulates the center elect...
12/11/1984
4471732Plasma jet ignition apparatus
A plasma jet ignitor apparatus for generating plasma from a plasma medium such as hydrogen and for discharging the plasma as a jet into the combustion chamber of an internal combustion chamber. The apparatus has a plug which has an electrode from which a ...
09/18/1984
4346679Starting aids for internal combustion engines
A starting aid for an internal combustion engine comprises a tubular extension in the end of which is a spirally wound electric heating element. The extension is secured to a body which in use is located in a bore in the cylinder head of the engine so tha...
08/31/1982
4340019Internal combustion diesel engine
An internal combustion diesel engine having a piston sliding in a cylinder and forming a main combustion chamber between the piston and the cylinder head. The cylinder head also has a pre-combustion chamber which communicates by a connecting passage with ...
07/20/1982
4332223Plasma fuel ignitors
An improved ignitor and ignition method for igniting a wide variety of fuels that may be used to power various types of engines, or for use with other applications requiring the efficient combustion of fuel. The fuel to be burned is mixed with air to form...
06/01/1982
4216748Internal combustion engine with subsidiary combustion chamber
The present invention discloses an internal combustion engine having an auxiliary combustion chamber in which a principal chamber is provided having (a) two intake valves and an intake port connected thereto and, (b) on the opposite side of a vertical pla...
08/12/1980
4077366Internal 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 ...
03/07/1978
 
Sign InRegister
Username  
Password   
forgot password?