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Title: US3898800: Heat engine in the form of a water pulse-jet
[ Derwent Title ]

Country: US United States of America

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7 pages

Inventor: Payne, Peter R.; Annapolis, MD 21401

Assignee: None

Published / Filed: 1975-08-12 / 1973-05-08

Application Number: US1973000358232

IPC Code: Advanced: B63H 11/12; F01K 15/04; F01K 27/00; F02G 1/043; F02K 7/00; F02K 7/02;
IPC-7: B63H 11/12; F02K 7/02;

ECLA Code: B63H11/12; F01K15/04; F01K27/00; F02G1/043F; R02G254/30;

U.S. Class: Current: 060/227; 060/221; 440/038;
Original: 060/227; 060/221; 115/011; 115/012.R;

Field of Search: 060/221,227 115/011,12 R

Priority Number:
1973-05-08  US1973000358232

Abstract:     A new heat engine in which liquid moves in a tube, one end of which is closed. The tube is heated at the closed end, and the liquid oscillates along the length of the tube. When the liquid interface enters the hot section, some of the interface vaporizes, so that the pressure in the space between the interface and the end of the tube increases, and the interface is forced back into the cooler section of the tube. The vapor then condenses, the pressure falls, and the liquid moves back toward the hot end.

Attorney, Agent or Firm: Sughrue, Rothwell, Mion, Zinn & Macpeak ;

Primary / Asst. Examiners: Gordon, Clarence R.;

INPADOC Legal Status: None          Buy Now: Family Legal Status Report

Family: Show 13 known family members

First Claim:
Show all 9 claims
I claim:     1. A heat engine comprising:
  • a. a tubular member, said tubular member being completely closed at one end and open at the other to a source of working fluid such that the working fluid has access to said tubular member through the open end thereof;
  • b. heating means for heating the working fluid at the closed end of said tubular member;
  • c. a material having high specific heat around the closed end of said tubular member to store heat;
  • d. a jacketing material having high heat conductivity arranged around said material having high specific heat; and
  • e. cooling means for cooling said tubular member adjacent the open end thereof,
whereby, when said heating means are functioning during use of the heat engine, the working fluid has a liquid and a vapor phase and the working fluid oscillates within the tube as it is alternately vaporized by said heating means and condensed by said cooling means, thereby producing useful power.

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Forward References: Show 1 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (1)   |   Backward references (12)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 4pp US789641  1905-05 Weeks   BOAT PROPELLING MECHANISM.
Get PDF - 4pp US1200960  1916-10 McHugh   POWER-PROPELLED BOAT.
Get PDF - 3pp US1480836  1924-01 Purcell   Propelling device
Get PDF - 3pp US1787844  1931-01 Widdis   Vessel-propelling means
Get PDF - 4pp US2020566  1935-12 Nelson   Propulsion machine
Get PDF - 3pp US2848972  1958-08 Orzynski   Boat having underwater fluid propulsion
Get PDF - 3pp US2885988  1959-05 Myers   Mechanized method and apparatus for releasing stranded ships
Get PDF - 6pp US3013384  1961-12 Smith   Jet atomic system
Get PDF - 3pp US3079751  1963-03 Lewis   Marine propulsion system
Get PDF - 3pp US3103783* 1963-09 Smith    
Get PDF - 6pp US3365880  1968-01 Grebe   Combustion apparatus for producing a high kinetic energy working gas stream and method of its use
Get PDF - 6pp US3647137  1972-03 Naydan  Environment/One Corporation HYDRAULIC CHAMBER INCORPORATING A JET NOZZLE
  * some details unavailable
Foreign References:
Publication Date IPC Code Assignee   Title
  GB0443255 1936-02       
Buy PDF GB0602034 1948-05  B63H 11/12 GAYNOR ENGLAND Improvements in and relating to propelling mechanism for water-borne vessels 
  DD0478917 1928-01       
Buy PDF FR0347591 1905-01  B63H 11/00 LEO GALLAND Système de propulsion des navires 

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