EP 1022448 A2 20000726 - Two-cycle internal combustion engine
Title (en)
Two-cycle internal combustion engine
Title (de)
Zweitakt brennkraftmaschine
Title (fr)
Moteur à combustion à deux temps
Publication
Application
Priority
JP 1569399 A 19990125
Abstract (en)
The invention provides a two-cycle internal combustion engine which can realize scavenging by air, prevent blow-by of a fuel mixture in a scavenging stroke, and prevent combustion of a lubricating oil in a combustion chamber to thereby purify an exhaust gas. To achieve this, a two-cycle internal combustion engine 1 includes a compressor section (20) for performing a compression stroke in concert with a scavenging stroke by a piston (7) reciprocating in a cylinder (8). A fuel mixture from a carburetor (17) is pressurized to be supplied to a combustion chamber (12) by the compressor section (20). On the other hand, a scavenging air is also pressurized to be supplied to the cylinder (8) from its side wall by the compressor section (20). An oil pump (60) driven by a crankshaft (3) is provided to pump up a lubricating oil stored in a bottom portion of a crankcase, thereby lubricating the crankshaft with the lubricating oil supplied from the oil pump. <IMAGE>
IPC 1-7
IPC 8 full level
F02B 33/02 (2006.01); F01M 3/00 (2006.01); F02F 1/24 (2006.01); F02F 1/38 (2006.01); F02B 1/04 (2006.01); F02B 75/02 (2006.01)
CPC (source: EP)
F02F 1/24 (2013.01); F02F 1/38 (2013.01); F02B 1/04 (2013.01); F02B 2075/025 (2013.01); F02F 2001/245 (2013.01)
Citation (applicant)
- JP S5025083 A 19750317
- JP H07310554 A 19951128 - MITSUBISHI HEAVY IND LTD
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 1022448 A2 20000726; EP 1022448 A3 20010704; EP 1022448 B1 20041020; AU 1355500 A 20000727; AU 752366 B2 20020919; DE 60014978 D1 20041125; DE 60014978 T2 20050310; JP 2000213357 A 20000802
DOCDB simple family (application)
EP 00101454 A 20000125; AU 1355500 A 20000125; DE 60014978 T 20000125; JP 1569399 A 19990125