Control slide for a screw volumetric machine and a machine equip

Details Control slide for a screw volumetric machine and a machine equip Control slide for a screw volumetric machine and a machine equip

1983-05-04

1986-02-18

Croyle, Carlton R.

Rotary expansible chamber devices

Interengaging rotating members

Non-parallel axis

418201, F01C 308, F01C 108

Patent

active

045711666

ABSTRACT:
A compressor comprises an hour-glass screw meshing with a pinion-wheel and a slide operable to obstruct partly a discharge port so as to increase the compression ratio by delaying the discharge moment. An edge of a part of the slide is used to obstruct the discharge cavity. The other edge of this part is provided with a removable spacer hvaing a thickness adapted to fill the slide-groove for a given adjustment of the slide. If the slide is moved so as to vary the compression ratio, a spacer having another thickness may be mounted to avoid modifying the volumetric capacity.

REFERENCES:
patent: 3088659 (1963-05-01), Nilsson
patent: 4074957 (1978-02-01), Clarke

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