Fuel routing systems for fuel-injected engines

Patent · Tue Aug 04 04:00:00 EDT 1987

OSTI ID:6042989

Bucci, G H

This patent describes a fuel routing apparatus for use with a fuel delivery system which supplies fuel to an engine, the system including first and second fuel storage tanks, first and second low pressure pumps for withdrawing fuel from the first and second storage tanks, respectively, and a high pressure pump or supplying fuel to the engine. The apparatus comprises: (a) first and second feed ports for receiving fuel from the first and second low pressure pumps, respectively; (b) an engine feed port for delivering fuel to the high pressure pump; (c) an engine return port for receiving fuel returned from the engine; (d) first and second return ports for returning fuel to the first and second fuel storage tanks, respectively; and (e) hydraulically operated valve means having a first position in which the first feed port is connected to the engine feed port and the first return port is connected to the engine return port. A second position connects to the engine feed port and the second return port is connected to the engine return port. The means is responsive to the hydraulic pressures produced by the first and second low pressure pumps such that the means is in its first position when the first low pressure pump is supplying fuel to the first feed port and the second low pressure pump is not supplying fuel to the second feed port. It is in its second position when the second low pressure pump is supplying fuel to the second feed port and the first low pressure pump does not supply fuel to the first feed port.

• Assignee: Whitehead Engineered Products, Inc., Meriden, CT
• Patent Number(s): US 4683864
• OSTI ID: 6042989
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330603* -- Vehicle Design Factors-- Engine System
CONTAINERS
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HYDRAULIC CONTROL DEVICES
PRESSURE DEPENDENCE
PUMPS
STORAGE FACILITIES
TANKS
VALVES
VEHICLES