Fuel heating type fuel filter device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 3, 1985
Grant Date -
N/A
app pub date -
Apr 11, 1984
filing date -
Apr 12, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fuel filter device for use with diesel engines has a manually operable pump section and a filter container housing therein a filter element and detachably attached to the pump section. The pump section has a manually operable diaphragm facing a chamber having fuel inlet and outlet respectively communicated with a fuel tank and the filter container. The inlet and outlet are provided with valves responsive to the fuel pressure at the inlet and to a pressure variation caused by the diaphragm in the chamber to allow the fuel to flow through the inlet into the chamber and through the outlet into the container in which the fuel flows through the filter element and out of the container to a discharge port of the pump section. An electric heater is disposed in the chamber adjacent to the path of the flow of the fuel in the chamber. A fuel temperature or pressure sensor is disposed downstream of the filter element to provide a signal for the control of the electrical supply to the heater.
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