Method of and apparatus for controlling supercharge pressure for a turbocharger

Patent · Tue Oct 13 04:00:00 EDT 1987

OSTI ID:5853411

Ueno, T; Abo, T

A supercharge pressure control apparatus for a turbocharger of an engine is described having a compressor and a turbine. The apparatus comprises: (a) means or detecting at least supercharge pressure and airflow rate into the engine; (b) first conduit means for directing exhaust gas from the engine to the turbine; (c) a tongue member positioned adjacent the turbine in the path of the exhaust passing from the engine to the turbine and moveable to increase or decrease an opening of the first conduit to the turbine; (d) first control means for controlling the tongue member for variably controlling the flow of exhaust gas to the turbine, the first control means responsive to a first control signal; (e) a bypass conduit for bypassing exhaust gas from the engine around the turbine to an exhaust pipe of the engine; (f) a bypass valve member positioned within the bypass conduit for variably controlling exhaust gas flow through the bypass conduit; (g) second control means for controlling the bypass valve member, the second control means responsive to a second control signal.

• Assignee: Nissan Motor Co., Ltd., Yokohama
• Patent Number(s): US 4698972
• OSTI ID: 5853411
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330603* -- Vehicle Design Factors-- Engine System
AIR FLOW
COMPRESSORS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
EQUIPMENT
EXHAUST SYSTEMS
FEEDBACK
FLOW RATE
FLOW REGULATORS
FLUID FLOW
GAS FLOW
PRESSURE CONTROL
RELIEF VALVES
SUPERCHARGERS
TURBOCHARGERS
VALVES