Rotary piston apparatus

US4451215A · kind A · utility

Assignee

• SKF Kugellagerfabriken GmbH · DE

Inventors

• Ottmar Winkler · Schweinfurt, DE
• Egon Pfaller · Dittelbrunn, DE

Key dates

• Filing date: Apr 14, 1981
• Grant date: May 29, 1984
• Expiry date: Apr 14, 2001

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2/44
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Rotary piston assembly comprising a housing having a bore, a piston rotatably mounted in the housing, a plurality of slide vanes distributed about the circumference of said piston, each slide vane supported for pivotal movement about an axis parallel to the axis of rotation of said piston, said slide vanes operable to pivot and engage the bore of the housing during rotation of the piston due the effect of centrifugal force, each of said slide vanes being of arcuate, vane shaped configuration having an enlarged end section of generally circular cross section, means defining a plurality of axially directed, circumferentially spaced arcuate recesses on the outer peripheral surface of said rotary piston to receive the end sections of said pivoted slide vanes.