Title:
【発明の名称】ねじ空気圧縮機の形式の過給機を備えた絞り制御内燃エンジンにおける装置
Document Type and Number:
Japanese Patent JPS63501969
Kind Code:
A
Abstract:
PCT No. PCT/SE86/00467 Sec. 371 Date May 14, 1987 Sec. 102(e) Date May 14, 1987 PCT Filed Oct. 10, 1986 PCT Pub. No. WO87/02417 PCT Pub. Date Apr. 23, 1987.In a convention throttle-controlled internal combustion engine (1, 2) equipped with a supercharger which has the form of a compressor (10) provided with screw rotors (14, 15) arranged in a compression chamber, the supercharger is inactive at part engine loads. Since the engine normally operates at part loads for about 95% of its running time, efficiency is correspondingly poor. This drawback is overcome with the arrangement according to the invention in which the screw compressor (10) is provided on the inlet side (20) thereof with a capacity regulating device (22) which is operated by a gas pedal, or accelerator, and which when the engine is only partially loaded, is adjusted to a corresponding position in which the compressor (10) operates as an expander (3) of variable throttle effect on the engine inlet side (3) and transmits power to the engine, thereby replacing the conventional gas throttle.
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Inventors:
Oscarson, Johnny
Application Number:
JP50542386A
Publication Date:
August 04, 1988
Filing Date:
October 10, 1986
Export Citation:
Assignee:
Svenska Rottaa Maschina-Activolag
International Classes:
F02D9/02; F02D23/02; F02B33/36; (IPC1-7): F02D23/02; F02B33/36
Attorney, Agent or Firm:
Shigeru Yagida