Apparatus for controlling the flow of exhaust gas in an internal combustion engine with a turbocharger and a catalytic converter

Patent · Tue Mar 20 04:00:00 EST 1984

OSTI ID:6616147

Iwamoto, K; Omata, K

An apparatus for controlling the flow of the exhaust gas in an internal combustion engine including a turbocharger, a catalytic converter in an exhaust duct, and a throttle valve in an intake duct, wherein the apparatus comprises a bypass passage bypassing a turbine of the turbocharger, a waste gate valve which controls the amount of the exhaust gas passing therethrough, an actuator for actuating the waste gate valve which has first and second pressure chambers separated from one another, and a switching valve which selectively connects the second pressure chamber to the atmosphere or to the intake vacuum area, the first pressure chamber being connected to the delivery pressure area of the turbocharger by means of a conduit which is connected to an atmospheric pressure area via a restriction.

• Assignee: Nippon Soken, Inc. (Japan)
• Patent Number(s): US 4437311
• OSTI ID: 6616147
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
CATALYTIC CONVERTERS
CONTROL
CONTROL EQUIPMENT
DESIGN
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
FLOW REGULATORS
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINERY
POLLUTION CONTROL EQUIPMENT
TURBINES
TURBOMACHINERY
VALVES
WASTES