EP 0284460 B1 19901128 - PRESSURISED FLUID MECHANISM, PUMP OR ENGINE, WITH SEVERAL DISPLACEMENT VOLUMES
Title (en)
PRESSURISED FLUID MECHANISM, PUMP OR ENGINE, WITH SEVERAL DISPLACEMENT VOLUMES
Publication
Application
Priority
FR 8702509 A 19870225
Abstract (en)
[origin: US4898076A] 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.
IPC 1-7
IPC 8 full level
F03C 1/24 (2006.01); F03C 1/247 (2006.01); F03C 1/40 (2006.01); F04B 1/10 (2006.01); F04B 1/107 (2006.01); F04B 1/113 (2006.01)
CPC (source: EP US)
F03C 1/045 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0284460 A1 19880928; EP 0284460 B1 19901128; DE 3861148 D1 19910110; FI 880881 A0 19880225; FI 880881 A 19880826; FR 2611816 A1 19880909; FR 2611816 B1 19890713; JP S63227965 A 19880922; US 4898076 A 19900206
DOCDB simple family (application)
EP 88400431 A 19880224; DE 3861148 T 19880224; FI 880881 A 19880225; FR 8702509 A 19870225; JP 3766088 A 19880222; US 15536288 A 19880212