Volume ratio control means for axial flow helical screw type com

Details Volume ratio control means for axial flow helical screw type com Volume ratio control means for axial flow helical screw type com

1981-06-16

1984-07-03

Smith, Leonard E.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

417440, F01C 116, F04B 2900, F15B 13044

Patent

active

044576811

ABSTRACT:
The high pressure end wall of an axial flow helical screw type compressor has a slide member which is movable transversely of the rotors for controlling the size of the discharge passage through the end wall and is controlled by sensing means responsive to the pressure at the end wall and in the discharge area in order that full compression which is substantially equal to the pressure at discharge may be obtained.

REFERENCES:
patent: Re29283 (1977-06-01), Shaw
patent: 2481646 (1949-09-01), Conklin
patent: 2519913 (1950-08-01), Lysholm
patent: 3026809 (1962-03-01), Anderson et al.
patent: 3108739 (1963-10-01), Nilsson
patent: 3151806 (1964-10-01), Whitfield
patent: 3665132 (1972-05-01), May
patent: 3936239 (1976-02-01), Shaw
patent: 3977818 (1976-08-01), Sprankle
patent: 4058988 (1977-11-01), Shaw
patent: 4140436 (1979-02-01), Schumacher
patent: 4222716 (1980-09-01), Shaw

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