F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
171/17
F02B 25/20 (2006.01) F02B 1/12 (2006.01) F02B 25/14 (2006.01) F02B 33/04 (2006.01) F02B 75/02 (2006.01) F02D 41/30 (2006.01)
Patent
CA 1094457
A 2-CYCLE ENGINE OF AN ACTIVE THERMOATMOSPHERE COMBUSTION TYPE ABSTRACT OF THE DISCLOSURE Disclosed is a 2-cycle engine having a scavenging passage communicating the crank case with the combustion chamber. The scavenging passage comprises a first passage and a second passage. The first passage has a long length and a small cross-sectional area for causing a fresh combus- tible mixture to flow at a high speed. The second passage has a short length and a large cross-sectional area for causing a fresh combustible mixture to flow at a low speed. The vaporization of the fresh combustible mixture is promoted in the first passage and, in addition, the fresh combustible mixture flows into the combustion chamber at a low speed. As a result of this, an active thermoatmosphere combustion is caused in the combustion chamber.
293955
Mcfadden Fincham
Nippon Clean Engine Research Institute Co. Ltd.
Toyota Jidosha Kabushiki Kaisha
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