EGR control system

Patent · Tue Sep 15 00:00:00 EDT 1987

OSTI ID:5958841

Choma, M A

A self-contained exhaust gas recirculation (EGR) system is described for insertion as a unit between the cylinder head and the intake manifold of an internal combustion engine having an intake manifold formed with a plurality of laterally spaced individually runners connected individually from a throttle body to separate intake ports in the face of the engine cylinder head for the supply of an air/gas flow therethrough separately to each intake port. It consists of an elongated spacer between the ends of the runners and the face of the cylinder head. The spacer has formed therein laterally spaced individual air/gas flow passages each aligned with (each) one of the runners and (the) an engine intake port(s). The spacer has an EGR passage connected (at one end) to a source of exhaust gases, a plurality of EGR gas distribution passages formed within the spaced connected at one end in common to the EGR passage and at their other end communicating individually with (to) each of the spacer air/gas flow passages for the flow of exhaust gases thereinto and therefrom individually to the engine intake ports, and an EGR valve reciprocably mounted in the EGR passage on the spacer for controlling the flow of EGR gases to each intake port in approximately equal volumes.

• Assignee: Ford Motor Co., Dearborn, MI
• Patent Number(s): US 4693226
• OSTI ID: 5958841
• Country of Publication: United States
• Language: English

Related Subjects

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