Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Radially disposed cylinders
Patent
1989-03-29
1991-07-23
Michalsky, Gerald A.
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Radially disposed cylinders
F04B 106
Patent
active
050333593
ABSTRACT:
A fluid machine such as a pump, compressor, engine, motor or transmission has working chambers in a rotor and a concentric rotor - hub is provided in the rotor for the reception of a control body therein. The control body has control ports for the control of flow of fluid into and out of the working chambers of the rotor. Pressure fields form in the clearance between the rotor hub and the control body especially around the control ports. Leakage flows from the pressure fields through portions of the clearance between the rotor - hub and the control body which reduces the efficiency of the machine. Therefore, means are provided in the rotor or in the control body to press those portions of the faces of the rotor hub and of the control body, which have those local pressure fields, together, or to narrow the clearance between these faces in the respective areas where those pressure fields are located, in order to reduce the leakage through the clearance between the faces of the rotor hub and the control body.
REFERENCES:
patent: 1998984 (1935-04-01), Ferris
patent: 2035647 (1936-03-01), Ferris
patent: 3874274 (1975-04-01), Knoblauch
patent: 4628794 (1986-12-01), Eickmann
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