Shape detail of a piston to avoid jamming within a distorted...

Details Shape detail of a piston to avoid jamming within a distorted... Shape detail of a piston to avoid jamming within a distorted...

2005-03-11

2011-10-04

Edgar, Richard (Department: 3745)

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

Reexamination Certificate

active

08029235

ABSTRACT:
A piston (21; 104) to be mounted inside a cylindrical bore (46; 117) has a cylindrical surface (32; 114) provided with at least one axially extending deepening (31; 116) for accommodating a thermal distortion of the cylindrical bore (46; 117). Preferably, the piston is used in a piston valve as a valve control member or turbine as a variable nozzle control member.

REFERENCES:
patent: 1824157 (1929-05-01), King
patent: 2841359 (1958-07-01), Berck
patent: 4776168 (1988-10-01), Woollenweber
patent: 5172626 (1992-12-01), Hart
patent: 110221 (1924-04-01), None
patent: 490286 (1918-05-01), None
patent: 08334055 (1995-06-01), None
patent: 08334055 (1996-12-01), None
ISR/WP Honeywell.

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