US PATENT SUBCLASS 418 / 5
MULTISTAGE

Current as of: June, 1999
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418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

5MULTISTAGE {7}
6  DF  .~> One working chamber stage encircles another
7  DF  .~> Successive stages alternately produce work
8  DF  .~> Working fluid engages working member serially in circumferentially spaced working chambers
9  DF  .~> Interengaging rotary members {1}
11  DF  .~> Sliding abutment
12  DF  .~> Swinging abutment
13  DF  .~> Sliding vane

DEFINITION

Classification: 418/5

(under the class definition) Apparatus in which there is provided a plurality of working chambers, at least one of the working chambers serially receiving its working fluid at least in part form one other working chamber, the working fluid either acting on or being acted upon by the working member in each working chamber.