Internal-combustion engines – Rotary – With transfer means intermediate single compression volume...
Reexamination Certificate
2010-02-09
2010-12-14
Solis, Eric (Department: 3747)
Internal-combustion engines
Rotary
With transfer means intermediate single compression volume...
C123S223000, C123S04500R, C123S205000, C123S210000
Reexamination Certificate
active
07849832
ABSTRACT:
A rotary piston machine has a housing in which are arranged at least two pistons which are able to revolve together in the housing about an axis of rotation which is fixed with respect to the housing, the pistons being mounted slidingly in a piston cage which is mounted in the housing and revolves together with the pistons about the axis of rotation, the two pistons executing mutually opposing reciprocating motions while revolving about the axis of rotation in order alternately to increase and decrease the volume of a working chamber defined by end faces oriented towards one another of the two pistons and by the piston cage, the axis of rotation passing through the working chamber and the piston cage having a gas exchange opening for admitting and discharging gas to and from the working chamber. The gas exchange opening is arranged on the axis of rotation and a closing member is arranged in the gas exchange opening, which is connected to the piston cage in a rotationally fixed manner with respect to the axis of rotation and is axially movable relative to the piston cage in the direction of the axis of rotation in order to open and close the gas exchange opening, there being present a control mechanism for the closing member which derives the axial motion of the closing member from the rotary motion of the closing member about the axis of rotation.
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International Search Report and Written Opinion of the International Searching Authority; PCT/EP2008/006625; Nov. 19, 2008; 13 pages.
International Preliminary Report on Patentability and Translation of the Written Opinoin of the International Searching Authority; PCT/EP2008/006625; Mar. 2, 2010; 7 pages.
Solis Eric
St. Onge Steward Johnston & Reens LLC
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