EP 0063240 B1 19860910 - ROTARY PISTON ENGINE
Title (en)
ROTARY PISTON ENGINE
Publication
Application
Priority
CH 248281 A 19810414
Abstract (en)
[origin: US4561836A] A rotary piston machine, in order to avoid losses due to compressed flows, has adjacent to a generating and/or sealing contact edge (21, 22) at least one recess (11a, 11e) and/or opening (12a, 12b) which extends beyond the contact curve (14a-14c) in at least approximately the direction of motion of the surfaces moving in relation to each other during the stroke or passage of the piston (6a'') through the shut-off driver. The spatial dimensions of the recesses and/or opening are such that the flow in it is not substantially accelerated even when the direction is changed. An opening (11g, 11g') can be closed insofar as it is located in a nonmoving ring (6b). To prevent low pressures between surfaces moving away from each other (9c, 14c) a pressure compensation space (11e) is connected to the contact line (14c) of one of the surfaces.
IPC 1-7
IPC 8 full level
F02B 53/00 (2006.01); F01C 1/08 (2006.01); F01C 1/12 (2006.01); F01C 1/20 (2006.01); F04C 2/28 (2006.01); F04C 18/08 (2006.01)
CPC (source: EP US)
F01C 1/088 (2013.01 - EP US); F01C 1/20 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0063240 A2 19821027; EP 0063240 A3 19830928; EP 0063240 B1 19860910; AT E22160 T1 19860915; CH 661318 A5 19870715; DE 3273101 D1 19861016; JP S57181901 A 19821109; US 4561836 A 19851231
DOCDB simple family (application)
EP 82102196 A 19820318; AT 82102196 T 19820318; CH 248281 A 19810414; DE 3273101 T 19820318; JP 6165782 A 19820413; US 66707284 A 19841101