EP 1007822 A1 20000614 - ROTARY ENGINE AND METHOD FOR DETERMINING ENGAGEMENT SURFACE CONTOURS THEREFOR
Title (en)
ROTARY ENGINE AND METHOD FOR DETERMINING ENGAGEMENT SURFACE CONTOURS THEREFOR
Title (de)
ROTIERENDE MASCHINE UND VERFAHREN ZUR BESTIMMUNG DER KONTAKTFLÄCHENKONTUR
Title (fr)
MOTEUR ROTATIF ET PROCEDE PERMETTANT DE DETERMINER LES CONTOURS DE SES SURFACES DE CONTACT
Publication
Application
Priority
- US 9911642 W 19990526
- US 8683898 P 19980526
Abstract (en)
[origin: WO9961753A1] An improved rotary engine (10) and method for determining the contours of the sealing surfaces (24, 34) thereof. The improved engine provides for maintaining a predetermined, optimal gap (IG) between the sealing surfaces during rotation. The gap may be parallel or angled, and may be positive or negative so as to form an interference engagement. The rotors (112, 114) of the engine may be provided with mirror-image sealing surfaces (160, 162, 166, 168) so as to prevent development of excessive back-lash and clearance, and also to permit efficient reverse operation. The sealing surfaces (200, 212) may also be provided with recesses (208) for interrupting the seal at predetermined points in the rotational cycle, for enhanced wear characteristics and/or to accommodate abrasive or shear-sensitive fluids.
IPC 1-7
IPC 8 full level
F01C 3/08 (2006.01)
CPC (source: EP)
F01C 3/085 (2013.01)
Citation (search report)
See references of WO 9961753A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9961753 A1 19991202; AU 4208599 A 19991213; CA 2300420 A1 19991202; CA 2300420 C 20050503; EP 1007822 A1 20000614
DOCDB simple family (application)
US 9911642 W 19990526; AU 4208599 A 19990526; CA 2300420 A 19990526; EP 99925884 A 19990526