Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Radially disposed cylinders
Patent
1988-02-12
1990-02-06
Koczo, Michael
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Radially disposed cylinders
F01B 1306
Patent
active
048980765
ABSTRACT:
The invention relates to a pressurized fluid mechanism comprising a plurality of pistons (14) and a plurality of different cylinder capacities. A particular cylinder capacity is selected by means of two identical slide valves (17, 18) which serve selectively to neutralize either a first overall cylinder capacity (45a) or a second overall cylinder capacity (45c), or both or neither of said first and second cylinder capacities. One application of the invention is to providing an efficient and compact motor which is cheap to produce.
REFERENCES:
patent: 3760691 (1973-09-01), Kress et al.
patent: 3808951 (1974-05-01), Martin
patent: 4398450 (1983-08-01), Louhio
patent: 4404896 (1983-09-01), Allart et al.
patent: 4724742 (1988-02-01), Bigo et al.
Allart Bernard
Bigo Louis
Koczo Michael
Societe Anonyme: Poclain Hydraulics, B.P.
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