Intake manifold for internal combustion engine having exhaust gas recirculation system

Patent · Tue Jun 16 04:00:00 EDT 1987

OSTI ID:6299840

Yokoi, T; Takeya, E; Hattori, K; Abe, K; Osawa, H

An intake manifold is described of an internal combustion engine which has an exhaust gas recirculation system. It introduces a part of exhaust gas from an exhaust passage through an EGR gas supply passage into the intake manifold. The intake manifold is provided with an EGR gas outlet opened thereto and connected to the EGR gas supply passage. The EGR gas outlet is located in an upper section of an interior of the intake manifold. A part of the EGR gas supply passage, in the vicinity of the EGR gas outlet extends transversely along a side-to-top wall of the intake manifold. The part of EGR gas passage defines at an opposite side thereof an inclined inner wall along the side-to-top wall of the intake manifold, in a transverse cross-section of the intake manifold. The inclined inner wall has its top portion directed downward to define the EGR gas outlet, so that the EGR gas outlet is defined below an inner surface of the top wall of the inner intake manifold.

• Assignee: Toyota Jidosha Kabushiki Kaisha, Toyota and Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya
• Patent Number(s): US 4672939
• OSTI ID: 6299840
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330700 -- Advanced Propulsion Systems-- Emission Control
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
INCLINATION
INTAKE STRUCTURES
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
POLLUTION CONTROL EQUIPMENT
WALLS
WASTES