Title:
【発明の名称】副室式ガスエンジン
Document Type and Number:
Japanese Patent JP3379176
Kind Code:
B2
Abstract:
PURPOSE:To provide an auxiliary chamber type gas engine which is constituted to reduce temperature through injection of water, prevent the occurrence of self-ignition through the increase of a compression ratio to a high value, and use natural gas as fuel. CONSTITUTION:A communication hole valve 5 is arranged in a communication hole 12 through which an auxiliary chamber 2 is communicated with a main chamber 1. A gas fuel valve 23 and a water injection nozzle 6 are arranged to the auxiliary chamber 2. The communication hole valve 5 is closed in the middle of a suction stroke and gas fuel is fed in the auxiliary chamber 2. The communication hole valve 5 is released in the vicinity of the top dead center of a compression stroke and high temperature air is introduced in the auxiliary chamber 2 to effect ignition combustion and water is injected in the auxiliary chamber 2 through the injection nozzle 6. Water is gasified to produce steam for expansion and gas in the auxiliary chamber 2 is pushed out by means of steam and is injected in the main chamber 1. A combustion temperature in the auxiliary chamber 2 is reduced to suppress the generation of NOx, mixture with fresh air in the main chamber is promoted by means of injection energy to the main chamber 1, and combustion in the main chamber 1 is completed in a short period to improve thermal efficiency.
Inventors:
Hiroshi Matsuoka
Application Number:
JP29252393A
Publication Date:
February 17, 2003
Filing Date:
October 29, 1993
Export Citation:
Assignee:
Isuzu Motors Limited
International Classes:
F02B19/02; F01P3/02; F02B19/12; F02B19/14; F02B43/00; F02B47/02; F02D15/04; F02D19/02; F02D19/12; F02M21/02; F02M25/022; (IPC1-7): F02B19/02; F01P3/02; F02B19/12; F02B19/14; F02B43/00; F02B47/02; F02D19/02; F02D19/12; F02M21/02; F02M25/022
Domestic Patent References:
| JP5171936A | ||||
| JP539721A | ||||
| JP3115725A | ||||
| JP5256160A | ||||
| JP6229319A | ||||
| JP6229318A | ||||
| JP6229320A | ||||
| JP482322U | ||||
| JP4110561B1 | ||||
| JP4504296A |
Attorney, Agent or Firm:
Ismune Onaka