Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1990-05-17
1991-04-30
Smith, Leonard E.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
384385, 475162, 29888, F01C 2108, F02B 5502
Patent
active
050113852
ABSTRACT:
A bearing arrangement and drive transmission arrangement of a rotary piston internal combustion engine having trochoidal-shaped casing mantle raceway surfacing and having a triangular piston controlled by a synchronous drive transmission consisting of a hollow gear and a pinion, with which the teeth of the hollow gear are machined or worked out of a piston bore extending over the entire width by impact pushing/cutting and broaching. A further bore is concentrically provided in the piston bore and extends from a side remote from the synchronous drive transmission as far as to the hollow gear and of which teeth only tooth butt ends are left standing upon which a bearing sleeve of the eccentric bearing is pressed thereon. Cooling passages or channels result between the bearing sleeve and the tooth butt ends. Transfer of contact heat from the piston onto the eccentric bearing is considerably reduced by engagement of the bearing sleeve only upon the tooth butt ends.
REFERENCES:
patent: 3461848 (1969-08-01), Bensinger
patent: 3469505 (1969-09-01), Bensinger
patent: 3728943 (1989-03-01), Sutter
Cavanaugh David L.
Smith Leonard E.
Wankel GmbH
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