Title:
【発明の名称】空気圧支援燃料噴射システム
Document Type and Number:
Japanese Patent JP2996414
Kind Code:
B2
Abstract:
An air-assist fuel injection system controls the supply of compressed air to the fuel injectors according to the operating status of internal combustion engine. For cold start operation, compressed air is supplied continuously to the injectors; while, for partial load (cruising) and partial acceleration, air is supplied as a pulsating (air volume control) flow consisting of air pulses coincident with the injected fuel pulses. On the other hand, for acceleration and deceleration, the supply of compressed air to the injectors may be inhibited. Further, idle speed control can be achieved using the air-assist to the fuel injectors, thereby eliminating need for a separate idle speed control valve. To enhance system operation, a fuel injector may be employed in which both the fuel and the applied compressed air are swirled, but in opposite directions, so as to achieve a fuel spray of small particle size.
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Inventors:
George Cycaris
Yamauchi Teruo
Baya Robert W
Yamauchi Teruo
Baya Robert W
Application Number:
JP50473292A
Publication Date:
December 27, 1999
Filing Date:
June 19, 1992
Export Citation:
Assignee:
Hitachi America Limited
International Classes:
F02D7/02; F02D41/00; F02D41/04; F02D41/06; F02D41/08; F02D41/14; F02D43/00; F02M23/12; F02D45/00; F02M61/16; F02M67/12; F02M69/00; F02M69/08; (IPC1-7): F02D41/14; F02D41/04; F02D45/00; F02M23/12; F02M69/00; F02M69/08
Domestic Patent References:
| JP2136560A | ||||
| JP5946366A | ||||
| JP58195057A | ||||
| JP63106356A | ||||
| JP196457A | ||||
| JP61125643U | ||||
| JP5528792U |
Attorney, Agent or Firm:
Yukihiko Takada