Rotary expansible chamber devices – Interengaging rotating members – Non-parallel axis
Patent
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
Croyle Carlton R.
Obee Jane E.
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