 |
|
|
|
|
|
 Title: |
US3898800:
Heat engine in the form of a water pulse-jet
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| 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;
Core:
B63H 11/00;
F01K 15/00;
F02G 1/00;
more...
IPC-7:
B63H 11/12;
F02K 7/02;
|
| 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.
The longer the tube in relation to size of the hot section or "boiler," the greater the momentum of the liquid when it enters the boiler, and the higher the peak pressure ratio which is developed. High pressure ratios are essential for efficient operation. It is also generally necessary for the boiler walls to be heavy enough to "store" the heat required for one complete cycle, and to be able to reject it to the water during the very short time that the interface is within the boiler.
The engine as described is immediately applicable to boat propulsion. With variations, it can be applied to many other uses, including the production of shaft power and the pumping of fluids.
|
| Attorney, Agent or Firm: |
Sughrue, Rothwell, Mion, Zinn & Macpeak ;
|
| Primary / Asst. Examiners: |
Gordon, Clarence R.;
|
| INPADOC Legal Status: |
None
Family Legal Status Report
|
| Family: |
Show 12 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.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
