| 摘要 |
PROBLEM TO BE SOLVED: To ensure the start of an engine 1 by reducing the reaction force of a compression stroke cylinder in the positive rotation operation, increasing the starting torque as much as possible by the combustion of an expansion stroke cylinder, in an engine system E to start by burning the compression stroke cylinder 12 of the engine 1 in the stopping, and burning the expansion stroke cylinder 12, once after the reverse operation. SOLUTION: The compression stroke cylinder 12A (#1 cylinder) at the stopping is burned in enriched air/fuel ratio to secure the reverse operation torque, and a cylinder 12B (#2 cylinder) in the expansion stroke is fully compressed to burn. Then, fuel is additionaly injected into the compression stroke cylinder 12A compressed by the positive rotation of the engine 1 (a5) to reduce the compression pressure with cooling effect due to evaporation latent heat. Fuel is injected into a suction stroke cylinder 12C(#3 cylinder) at the stopping after transfer to the compression stroke(a6), and the temperature and the pressure are reduced with cooling effect due to evaporation latent heat, and then to ignite after exceeding TDC (a7). COPYRIGHT: (C)2005,JPO&NCIPI |
