Compact high efficiency fuel heater with integral thermostatic control

Patent · Tue Aug 06 04:00:00 EDT 1991

OSTI ID:5632387

Stone, W H

This patent describes improvement in a fuel heater for maintaining fuel delivered to an engine within a desired temperature range; having a body with an inlet and an outlet; heat exchanger means for delivering heat from a heat source; first fluid passage means in the body for passing fuel from the inlet to the outlet through the heat exchanger means; second fluid passage means disposed of the heat exchanger means for passing fuel from the inlet to the outlet through the body; valve means in the body for selectively directing fuel to the first or second fluid passage means; and thermostatic actuator means in a fuel path in the body in operative connection with the valve means for controlling the valve means responsive to fuel temperature. The improvement comprises: a first opening to the first fluid passage means; and a seat in the body, the second fluid passage means extending through a fluid opening in the seat, the thermostatic actuator means including an axially movable plunger rod extending through the fluid opening in the seat, the plunger rod moveable responsive to temperatures.

• Assignee: Parker Hannifin Corp., Cleveland, OH (USA)
• Patent Number(s): A; US 5036825
• Application Number: PPN: US 7-596110
• OSTI ID: 5632387
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100 -- Internal Combustion Engines
42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CONTROL EQUIPMENT
EFFICIENCY
ENERGY EFFICIENCY
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL SYSTEMS
HEAT ENGINES
HEAT EXCHANGERS
INTERNAL COMBUSTION ENGINES
THERMOSTATS
VALVES