Male and female screw rotor assembly with specific tooth flanks

Details Male and female screw rotor assembly with specific tooth flanks Male and female screw rotor assembly with specific tooth flanks

1980-09-12

1983-08-30

Vrablik, John J.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

74466, F01C 116, F16H 5508, F04C 1816

Patent

active

044014201

ABSTRACT:
An oil-cooled type screw rotor assembly having a female rotor and a male rotor adapted to rotate around parallel axes in meshing relation to each other. The leading side flank of the female rotor is constituted by a first leading side flank formed by an arc of a radius R.sub.1 and a second leading side flank formed by an arc of a radius R.sub.2. Also, the trailing side flank of the female rotor is constituted by a first trailing side flank formed by an arc of the tooth ends of the male rotor having a radius R.sub.5 and a second trailing side flank formed by an arc of a radius R.sub.3 which is smaller than the radius R.sub.2 of the second leading side flank. The configuration of the teeth of the male rotor is materially formed by arcs of the leading and trailing side flanks of the female rotor.

REFERENCES:
patent: 2473234 (1949-06-01), Whitfield
patent: 3773444 (1973-11-01), Koch
patent: 3787154 (1974-01-01), Edstrom

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