Piston engine

Details Piston engine Piston engine

1989-05-26

1991-03-12

Look, Edward K.

Expansible chamber devices

Spaced cylinder and piston walls define passage between...

92DIG1, 92DIG2, 921691, 60517, 60518, 60519, 60520, F01B 3100

Patent

active

049984608

ABSTRACT:
A piston engine comprising a piston movable in a recriprocating manner in a cylinder, while during operation a wedge-shaped gap is present between piston and cylinder. The piston divides the cylinder into a first chamber and a second chamber, which communicate with each other through the gap. A stable central position of the piston is obtained by means of the wedge-shaped gap, which mainly determines a pressure difference between the first chamber and the second chamber. A particular application of the piston engine is a cryo-cooler, by means of which, for example, processors of computers are cooled.

REFERENCES:
patent: 3777621 (1973-12-01), Blok et al.
patent: 3954048 (1976-05-01), Houser
patent: 4058382 (1989-01-01), Bremer et al.
patent: 4697113 (1987-09-01), Young
patent: 4799421 (1987-11-01), Mulder
patent: 4802332 (1989-02-01), Beale
patent: 4873826 (1989-10-01), Dhar
Proceedings of the Twelfth International Cryogenic Engineering Conference Southampton, UK Jul. 12-15, 1988.

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