Fuel supply system for internal-combustion engine

Patent · Tue Dec 20 04:00:00 EST 1988

OSTI ID:6484855

Fujieda, M; Oyama, Y

This patent describes a fuel supply system for an internal-combustion engine. The fuel supply system consists of: fuel supply means; an intake-air passage connected through an intake valve to a combustion chamber defined by a cylinder and a piston, the intake-air passage having a volume between the fuel supply means and the intake valve means equal to a volume of the cylinder at a lowest point of a stroke of the piston, wherein the fuel supply means is disposed in a portion of the intake-air passage at such a position that the relationship between a volume V/sub IN/ of the intake-air passage extending from the fuel supply means to the intake valve and a volume V/sub COM/ of the combustion chamber determined at the lowest point of the stroke of the piston satisfies the following condition: V/sub IN/=0.7 to 1.2 V/sub COM/ whereby air present between a vicinity of an intake valve and the fuel supply means is sucked in in accordance with a progress of the intake stroke of the internal combustion engine, with the fuel supplied by the fuel supply means being concentrated at an end of the intake stroke in a vicinity of an ignition plug disposed in an upper part of the cylinder.

• Assignee: Hitachi, Ltd., Tokyo
• Patent Number(s): US 4791903
• OSTI ID: 6484855
• Country of Publication: United States
• Language: English

Related Subjects

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