Throttle body for fuel injection system

Patent · Tue Jan 12 00:00:00 EST 1988

OSTI ID:5400822

Fujisawa, T

A throttle body for a fuel injection system of an internal combustion engine is described comprising: a main body defining an intake bore therein; an air valve provided at an upstream location in the intake bore; a throttle valve provided at a downstream location in the intake bore; a fuel injection nozzle which is adapted to inject fuel into the intake bore; a biasing means for biasing the air valve towards its closed state; an actuator which tends to increase the opening angle of the air valve according the magnitude of the negative pressure existing in the intake bore between the air valve and the throttle valve; a prohibiting means which prohibits the action of the actuator when the engine has not been warmed up.

• Assignee: NOV; NOV-88-003011; EDB-88-078448
• Patent Number(s): US 4718383
• OSTI ID: 5400822
• Resource Relation: Patent File Date: Filed date 2 Sep 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
FUEL INJECTION SYSTEMS
DESIGN
INTERNAL COMBUSTION ENGINES
ACTUATORS
AIR FLOW
INTAKE STRUCTURES
NOZZLES
OPERATION
VALVES
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FUEL SYSTEMS
GAS FLOW
HEAT ENGINES
MECHANICAL STRUCTURES
330100* - Internal Combustion Engines