Multi-fuel injection system for an internal combustion engine

Patent · Tue Sep 15 04:00:00 EDT 1987

OSTI ID:5958969

Susono, Y

A multi-fuel injection system for an internal combustion engine having a plurality of cylinders is described. It consists of: a first fuel injection pump means having a plurality of fuel outlets for delivering a first fuel in a predetermined cycle under a pressure higher than a predetermined value; a second fuel injection pump means having a single fuel outlet and adapted to be driven synchronously with the first fuel injection pump means for delivering a second fuel under a pressure lower than the predetermined value; a plurality of fuel injection nozzles arranged one by one for each cylinder of the engine. A first set of fuel pipes for interconnecting the outlets of the first fuel injection pump means and the first inlet passages of the fuel injection nozzles one by one, respectively; a second set of fuel pipes each having one end thereof commonly connected to the single outlet of the second fuel injection pump means and the other end connected to the second fuel inlet passages of the fuel injection nozzles on by one; and means for preventing a backflow of the second fuel from each of the second inlet passages to the single outlet of the second fuel injection pump means.

• Assignee: Toyota Jidosha Kabushiki Kaisha, Aichi
• Patent Number(s): US 4693227
• OSTI ID: 5958969
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
COMPRESSIBLE FLOW
CONTROL EQUIPMENT
CYLINDERS
DESIGN
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUID MECHANICS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
HYDRAULICS
INTERNAL COMBUSTION ENGINES
MECHANICS
NOZZLES
OPERATION
PUMPS
VALVES