Title:
SUPERCHARGED INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO2006076167
Kind Code:
A3
Abstract:
A supercharged internal combustion engine system wherein the supercharger assembly includes an ejector pump driven by high-pressure air for pumping intake air into engine combustion chamber. Included are means for sensing engine power demand and controlling the supercharging action. A compressor and an air tank for providing high-pressure air for driving the ejector pump are also disclosed. During periods of natural aspiration the ejector pump can be by-passed to reduce flow impedance. The ejector pump can use a driving nozzle with a fixed throat or a variable throat, or a lobed nozzle. Effective supercharging is achieved even at low engine speeds. One of the objects of the invention is to obtain more power from small displacement internal combustion engines and thus providing automotive vehicles with sufficient acceleration in addition to good fuel economy.
Inventors:
VETROVEC JAN (US)
Application Number:
PCT/US2005/047290
Publication Date:
October 12, 2006
Filing Date:
December 29, 2005
Export Citation:
Assignee:
VETROVEC JAN (US)
International Classes:
F02B33/42; F02B29/00; F02B37/00; F02B39/02; F02D23/00
Foreign References:
| US5083429A | 1992-01-28 | |||
| US6082341A | 2000-07-04 | |||
| JPS5759022A | 1982-04-09 | |||
| JPS57210154A | 1982-12-23 | |||
| JPS5756623A | 1982-04-05 |
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