Arrangement and method for regulation of the idle speed and charge pressure in a supercharged combustion engine
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United States of America Patent
Stats
-
Feb 11, 1997
Grant Date -
N/A
app pub date -
Mar 7, 1995
filing date -
Jul 8, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement and method for regulation of idle speed and charge pressure in a supercharged combustion engine (1) which engine includes an idle speed valve (20) arranged in a shunt channel (21) by-passing the throttle (9) and a gate valve (10) regulated by a pressure controlled diaphragm pot for regulating of the supercharger. The valve (20) is used both for regulation of idle speed and charge pressure by an arrangement of ducting (23, 24, 25, 19) and a shut-off valve (26). A control device (31) includes different functions for regulation of idle speed and charge pressure. The function selected for regulation by the control device depends on an engine parameter, such as throttle position, detected by a throttle position sensor (16).
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