Steam engine

Details Steam engine Steam engine

Filed on

2007-03-06

Date issued

2007-03-06

Examiner

Nguyen, Hoang (Department: 3748)

Patent Class

Power plants

SubClass

Fluid within expansible chamber heated or cooled

Other Related Categories

C060S512000, C060S645000, C060S670000

Type

Reexamination Certificate

Status

active

Patent number

11146174

Description

ABSTRACT:
A steam engine has a looped fluid container, in which working fluid is filled. A heating device, a cooling device and an output device are arranged at the fluid container. A lower side valve is provided at a fluid passage of the fluid container between the heating device and the output device. An upper side valve is provided at another fluid passage of the fluid container between the cooling device and the output device. The upper and lower valves are respectively controlled to open and close the respective fluid passages at proper timings, to increase heat efficiency.

REFERENCES:
patent: 3889470 (1975-06-01), Szewalski
patent: 4060988 (1977-12-01), Arnold
patent: 4340111 (1982-07-01), Skala
patent: 6931852 (2005-08-01), Yatsuzuka et al.
patent: 6973788 (2005-12-01), Oda et al.
patent: 6976360 (2005-12-01), Yatsuzuka et al.
patent: 7073331 (2006-07-01), Oda et al.
patent: 2004/0060294 (2004-04-01), Yatsuzuka et al.
patent: A-7-180649 (1995-07-01), None

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