Exhaust gas recirculation for a diesel engine

Patent · Tue Dec 09 04:00:00 EST 1980

OSTI ID:6504951

Toda, T; Ueda, T

An exhaust gas recirculation control valve for a diesel engine is described. The valve comprises a valve casing of a rectangular cross-sectional shape disposed in the intake line of the engine. A valve seat connected to an exhaust line of the engine via an egr passageway is formed in a side wall of the rectangular-shaped valve casing. A valve member is arranged in the casing and then rotated about an axis located upstream of the valve seat in such a manner that the valve member is moved between a position wherein valve member closes the valve seat and another position wherein the plate closes the intake passageway. The valve member comprises a base portion of a flat shape and a guide portion which is inserted into the valve seat when the degree of opening of the valve member is small.

• Assignee: Toyota Jidosha Kogyo K K (Japan)
• Patent Number(s): US 4237837
• OSTI ID: 6504951
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
330700* -- Advanced Propulsion Systems-- Emission Control
CONTROL EQUIPMENT
DIESEL ENGINES
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
POLLUTION CONTROL EQUIPMENT
VALVES
WASTES