Single or twin valve type fuel injection system

Patent · Tue Apr 04 04:00:00 EDT 1989

OSTI ID:5836331

Takano, Y; Hoshi, Y

A fuel injection system is described for an internal combustion engine having intake air passage means for supplying intake air, a plurality of cylinder means making a same stroke without overlapping and intake manifold means having a branching position for supplying intake air from the intake air passage means into the respective cylinder means; fuel injection valve means disposed within the intake air passage means at an upstream side of the branching position of the intake manifold means for supplying fuel to each of the cylinder means, throttle valve means disposed in a throttle body means forming part of the intake air passage means of the engine at a position upstream of the fuel injection valve means, and means formed in the intake air passage means between the throttle valve means and the fuel injection valve means for regulating a flow of intake air passing therethrough between the throttle valve means and the fuel injection valve means, wherein the means for regulating includes an unobstructed curved passage means which is integrally formed with the throttle body means supporting the throttle valve means which is configured to direct the lines of flow of the intake air in a fixed direction toward the fuel injection valve means.

• Assignee: Hitachi, Ltd., Tokyo
• Patent Number(s): US 4817569
• OSTI ID: 5836331
• Country of Publication: United States
• Language: English

Related Subjects

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