Title:
METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE WITH TURBOCHARGE SYSTEM,AND INTERNAL COMBUSTION ENGINE WITH TURBOCHARGE SYSTEM FOR USE IN CARRYING OUT THE METHOD
Document Type and Number:
WIPO Patent Application WO1982000174
Kind Code:
A1
Abstract:
The method serves to establish an energy reserve that can be used for levelling out variations of the manner of operation of the engine. To this end, a fraction only of the exhaust gas delivered by the engine (1) under the conditions of operation existing at normal temperatures in temperate geographical areas is passed to the turbocharge system (5) while the remaining fraction of the exhaust gas delivered by the engine is caused to by-pass the turbocharge system (5). By reducing the by-passed fraction, a full or partial compensation is obtained for the reduction of the charging of the cylinders which would otherwise occur in the case of an increase of the temperature of the air taken in by the turbocharge system (5). A compensation may also be made for dropping efficiency of the turbocharge system, viz. by reducing the fraction of the exhaust gas by-passing the turbocharge system (5). The internal combustion engine (1) with the turbocharge system (5) has means (9) for branching-off a fraction of the exhaust gas from the engine so as to conduct this fraction in by-pass to the turbocharge system (5) and either to the atmosphere or to a boiler (70), if desired through an apparatus for the utilization of secondary energy. The branch-off means (9) are adjusted towards reduction of the passage area when the temperature of the intake air rises, and when the efficiency of the turbocharge system (5) drops.
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Inventors:
OSTERGAARD A (DK)
Application Number:
PCT/DK1981/000068
Publication Date:
January 21, 1982
Filing Date:
July 03, 1981
Export Citation:
Assignee:
OSTERGAARD A
International Classes:
F02B37/12; F01N5/00; F02B37/00; F02B37/18; F02B3/06; (IPC1-7): F02B37/00; F02C6/12
Foreign References:
| US3925989A | 1975-12-16 | |||
| US4179892A | 1979-12-25 | |||
| US3914944A | 1975-10-28 | |||
| US2306277A | 1942-12-22 | |||
| GB941532A | 1963-11-13 |
Other References:
Patent Abstracts of Japan, abstract of JP 53-56413, published 1978-03-22 Hitachi Seisakusho K.K.
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