Work Files Saved Searches
   My Account                                                  Search:   Quick/Number   Boolean   Advanced       Help   

 The Delphion Integrated View

  Buy Now:   Buy PDF- 15pp  PDF  |   File History  |   Other choices   
  Tools:  Citation Link  |  Add to Work File:    
  View:  Expand Details   |  INPADOC   |  Jump to: 
 Email this to a friend  Email this to a friend 
Title: US5024193: Fuel combustion system, method, and nozzle member therefor
[ Derwent Title ]

Country: US United States of America

View Images High


15 pages

Inventor: Graze, Jr., Russell R.; Dunlap, IL

Assignee: Caterpillar Inc., Peoria, IL
other patents from CATERPILLAR INC. (92420) (approx. 5,954)
 News, Profiles, Stocks and More about this company

Published / Filed: 1991-06-18 / 1990-02-06

Application Number: US1990000475517

IPC Code: Advanced: F02B 19/12; F02B 1/04;
IPC-7: F02B 19/18;

ECLA Code: F02B19/12; R02B1/04;

U.S. Class: Current: 123/259; 123/283; 123/293;
Original: 123/259; 123/283; 123/293;

Field of Search: 123/259,286,293,269,266,282,283

Priority Number:
1990-02-06  US1990000475517

Abstract:     This invention relates to a fuel combustion system for a lean burn internal combustion engine. Because of the lean fuel/air ratio, it is difficult to consistently achieve complete and thorough combustion within the main combustion chamber because of the relatively slow rate of flame propagation. The subject fuel combustion system includes a precombustion chamber assembly defining a prechamber having a preselected shape and volume and includes a plurality of ejection passages. The passages are of a preselected geometric cross-section for directing and controllably expanding burning gases from the prechamber into the main combustion chamber at a velocity greater than the speed of sound in order to penetrate and cause igniting and burning in the main combustion chamber for faster and more complete combustion.

Attorney, Agent or Firm: Rhoads, Kenneth A. ;

Primary / Asst. Examiners: Argenbright, Tony M.;

INPADOC Legal Status: Show legal status actions          Buy Now: Family Legal Status Report

Family: Show 9 known family members

First Claim:
Show all 68 claims
I claim:     1. In a fuel combustion system for a gas engine defining a main combustion chamber above a reciprocating piston and a precombustion chamber assembly in communication therewith, defining a prechamber, and igniting means for igniting a mixture of gaseous combustible fuel and air in the prechamber and forming expanding burning gases, wherein the improvement comprises:
  • ejection passage means defining by the precombustion chamber assembly, the ejection passage means includes a plurality of ejection passages of a preselected geometric cross-section in communication with the prechamber for directing and controllably expanding the burning gases from the prechamber into the main combustion chamber at a velocity greater than the speed of sound.

Background / Summary: Show background / summary

Drawing Descriptions: Show drawing descriptions

Description: Show description

Forward References: Show 21 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (21)   |   Backward references (13)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 8pp US1271942  1918-07 Richardo   INTERNAL-COMBUSTION ENGINE.
Get PDF - 9pp US1700903* 1929-02 Marburg    
Get PDF - 6pp US2153598  1939-04 Steward   Internal combustion engine
Get PDF - 14pp US2173081  1939-09 Barkeij   Internal combustion engine
Get PDF - 9pp US3406667  1968-10 Evans et al.   Ignition amplifying apparatus
Get PDF - 8pp US3985111  1976-10 Turkish  Eaton Corporation Article for defining an auxiliary compartment for an engine combustion chamber
Get PDF - 10pp US4140090  1979-02 Lindberg  Owen, Wickersham & Erickson Precombustion chamber, stratified charge internal combustion engine system using a highly combustible gas in the precombustion chamber
Get PDF - 8pp US4144848  1979-03 Hatanaka  Honda Giken Kogyo Kabushiki Kaisha Orientation of torch openings for prechamber engine
Get PDF - 9pp US4147150  1979-04 Yokota et al.  Toyota Jidosha Kogyo Kabushiki Kaisha Internal combustion engine with an auxiliary combustion chamber
Get PDF - 4pp US4292935  1981-10 Wagner  Rockwell International Corporation Low nitrous oxide (NOX) precombustor
Get PDF - 5pp US4294208  1981-10 Wagner  Rockwell International Corporation Atomizing shock wave precombustor
Get PDF - 5pp US4325334  1982-04 Nishida et al.  Tokyo Shibaura Denki Kabushiki Kaisha Prechamber cup for an internal combustion engine
Get PDF - 12pp US4534327  1985-08 Latsch et al.  Robert Bosch GmbH Externally ignited internal combustion engine
  * some details unavailable
Foreign References: None

Inquire Regarding Licensing

Powered by Verity

Plaques from Patent Awards      Gallery of Obscure PatentsNominate this for the Gallery...

Thomson Reuters Copyright © 1997-2014 Thomson Reuters 
Subscriptions  |  Web Seminars  |  Privacy  |  Terms & Conditions  |  Site Map  |  Contact Us  |  Help