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Title: Intake air control system for an automotive engine

Abstract

This patent describes a system for controlling the intake air in an automotive engine having an intake passage, a throttle valve in the intake passage, and a bypass provided for bypassing the throttle valve, comprising: a control valve provided in the bypass to control the amount of bypassing air; actuating means for operating the control valve; means for detecting the temperature of a coolant of the engine and for producing a first temperature signal when the temperature is lower than a predetermined value and for producing a second temperature signal when the temperature of the coolant is higher than the predetermined value, respectively; means for detecting the position of the throttle valve and for producing a throttle position signal when the throttle valve is closed to an idle opening position; control means responsive to the first temperature signal and to the throttle position signal for actuating the actuating means so as to hold the control valve in an open state for a predetermined period dependent on the temperature, and thereafter to close the control valve, and the control means responsive to the second temperature signal and to the throttle position signal for gradually closing the control valve.

Inventors:
Publication Date:
OSTI Identifier:
6299263
Patent Number(s):
US 4672936
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 21 Oct 1985
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; ENGINES; AIR FLOW; CONTROL SYSTEMS; INTAKE STRUCTURES; VALVES; VEHICLES; ACTUATORS; COOLANTS; SIGNALS; TEMPERATURE MEASUREMENT; CONTROL EQUIPMENT; EQUIPMENT; FLOW REGULATORS; FLUID FLOW; GAS FLOW; MECHANICAL STRUCTURES; 330603* - Vehicle Design Factors- Engine System

Citation Formats

Abe, D K. Intake air control system for an automotive engine. United States: N. p., 1987. Web.
Abe, D K. Intake air control system for an automotive engine. United States.
Abe, D K. 1987. "Intake air control system for an automotive engine". United States.
@article{osti_6299263,
title = {Intake air control system for an automotive engine},
author = {Abe, D K},
abstractNote = {This patent describes a system for controlling the intake air in an automotive engine having an intake passage, a throttle valve in the intake passage, and a bypass provided for bypassing the throttle valve, comprising: a control valve provided in the bypass to control the amount of bypassing air; actuating means for operating the control valve; means for detecting the temperature of a coolant of the engine and for producing a first temperature signal when the temperature is lower than a predetermined value and for producing a second temperature signal when the temperature of the coolant is higher than the predetermined value, respectively; means for detecting the position of the throttle valve and for producing a throttle position signal when the throttle valve is closed to an idle opening position; control means responsive to the first temperature signal and to the throttle position signal for actuating the actuating means so as to hold the control valve in an open state for a predetermined period dependent on the temperature, and thereafter to close the control valve, and the control means responsive to the second temperature signal and to the throttle position signal for gradually closing the control valve.},
doi = {},
url = {https://www.osti.gov/biblio/6299263}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {6}
}