F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
103/74, 103/87
F04C 2/00 (2006.01)
Patent
CA 1278724
ABSTRACT A DISPLACEMENT PUMP A fluid displacement pump or motor comprising a housing closed by a cover and; a rotor having one or more displacement surfaces within the housing. A seal engages the rotor with a form fit and is rotatable therewith. A recess form a working chamber with which the displacement surfaces engage such working chamber being concentric with the axis of rotation of the rotor and formed in an end face of the housing that is proximate to the rotor; the housing end face subtending an angle that varies about 90° with respect to the axis of rotation of the rotor so that the cross-sectional area of the recess varies between a maximum and a minimum value and the seal, which seals the recess, is rotatable on the inclined end face of the housing about an axis which intercepts and is inclined with respect to the axis of rotation of the rotor. The rotor is a displacement rotor which overlies and occupies the recess, with the exception of at least one portion cut-away along a section forming a surface which is parallel to the rotor axis and intersects the recess, whereby the or each such surface of the displacement rotor which extends into the recess forms one of the displacement surfaces.
514592
Borden Ladner Gervais Llp
Willimczik Wolfhart
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