Title:
空気先導式層状掃気2サイクルエンジンの掃気通路構造
Document Type and Number:
Japanese Patent JP4160708
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce exhaust amount of THC(total hydrocarbon) by avoiding blow-by of air-fuel mixture into an exhaust port, to increase air-fuel mixture density charged into a combustion chamber by raising scavenging efficiency and to raise an engine output by improving combustion, in a crankcase scavenging compression type two-cycle engine. SOLUTION: In a crankcase compression scavenging type two-cycle engine, a scavenging passage is constituted so that a blow-up angle (α) formed by an upper wall surface continuous to a scavenging port and a right angle direction line with a cylinder as a center may be different in the peripheral direction of the cylinder. When a blow-up angle at a portion close to an exhaust port and a blow-up angle at a portion close to an intake port are determined for α1 and α2, respectively, the blow-up angles α1 and α2 are characterized by being constituted as α1<α2.
Inventors:
Kazuyuki Uenoyama
Application Number:
JP37168499A
Publication Date:
October 08, 2008
Filing Date:
December 27, 1999
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F02B25/16; F02B33/04; F02B25/22; F02B33/44; F02F1/22; F02B75/02
Domestic Patent References:
| JP4330329A | ||||
| JP63038611A |
Attorney, Agent or Firm:
Masahisa Takahashi
Hisamaru Hanada
Hisamaru Hanada
Previous Patent: 電力線路の部分放電信号中の外部ノイズの除去方法
Next Patent: WATER-PROOF TYPE CABLE AGAINST WATER TRAVELLING INSIDE OF METAL SHEATH WITH CORRUGATION
Next Patent: WATER-PROOF TYPE CABLE AGAINST WATER TRAVELLING INSIDE OF METAL SHEATH WITH CORRUGATION