EP 1123456 A2 20010816 - ENGINE WITH CRANKCASE COMPRESSION
Title (en)
ENGINE WITH CRANKCASE COMPRESSION
Title (de)
MOTOR MIT VERDICHTUNG IM KURBELWELLENGEHÄUSE
Title (fr)
MOTEUR A COMPRESSION DANS LE CARTER
Publication
Application
Priority
- US 9922032 W 19990922
- US 10129898 P 19980922
Abstract (en)
[origin: WO0017500A2] An engine (10) has a block with a crankcase chamber (22) and two cylinders (24, 26) extending radially from the chamber (22). A piston (56, 60) reciprocates in each cylinder (24, 26). The crankcase chamber (22) accommodates a crankshaft (64) which causes the pistons (56, 60) to move in diametrically opposite directions. At any time, both pistons (56, 60) are moving either towards top dead center or towards bottom dead center. An injector (88) is arranged to admit a fuel mixture into the crankcase chamber (22) through an inlet opening (90) whenever the two pistons (56, 60) move towards top dead center. Two transfer tubes (98, 100) extend from an outlet opening (94) in the block to the combustion chambers of the respective cylinders (24, 26). The volume of fuel mixture drawn through the inlet opening (90) when the pistons (56, 60) move towards top dead center equals the sum of the displacements of the pistons (56, 60). The greater part of this volume is forced into a combustion chamber during an intake stroke with an accompanying precompression.
IPC 1-7
IPC 8 full level
F02B 33/04 (2006.01); F01L 7/02 (2006.01); F01M 1/06 (2006.01); F01M 3/00 (2006.01); F02B 29/02 (2006.01); F02B 67/06 (2006.01); F02B 75/22 (2006.01); F02B 75/24 (2006.01); F02F 7/00 (2006.01); F02B 75/02 (2006.01)
CPC (source: EP)
F02B 75/22 (2013.01); F02B 75/243 (2013.01); F02B 2075/025 (2013.01)
Citation (search report)
See references of WO 0017500A2
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 0017500 A2 20000330; WO 0017500 A3 20000525; AU 6159099 A 20000410; BR 9914022 A 20010731; CA 2344580 A1 20000330; CN 1319159 A 20011024; EP 1123456 A2 20010816; JP 2002525481 A 20020813; MX PA01002882 A 20020408
DOCDB simple family (application)
US 9922032 W 19990922; AU 6159099 A 19990922; BR 9914022 A 19990922; CA 2344580 A 19990922; CN 99811250 A 19990922; EP 99948401 A 19990922; JP 2000571123 A 19990922; MX PA01002882 A 19990922