Electrically operated pump assembly with an externally installed control circuit
First Claim
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1. An electrically operated pump assembly for use in a fuel tank comprising:
- a pump section;
an electric motor section for driving said pump section;
a housing in which said pump section and the electric motor section are enclosed, said housing being located in the fuel tank;
a control circuit for controlling said electric motor section; and
a case for enclosing said control circuit, said case being located in the fuel tank externally of said housing and adjacent to a passage through which fuel from said pump section flows.
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Abstract
An in-tank type electrically operated fuel pump assembly includes an electric motor which is controlled by a control circuit located externally of a pump housing and adjacent to a passage through which fuel is fed from the pump. A case in which the control circuit is enclosed is not subjected to a high pressure, assuring stable protection of the control circuit for a long period of time. Furthermore, the control circuit is effectively cooled by the flowing fuel.
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Citations
5 Claims
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1. An electrically operated pump assembly for use in a fuel tank comprising:
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a pump section; an electric motor section for driving said pump section; a housing in which said pump section and the electric motor section are enclosed, said housing being located in the fuel tank; a control circuit for controlling said electric motor section; and a case for enclosing said control circuit, said case being located in the fuel tank externally of said housing and adjacent to a passage through which fuel from said pump section flows. - View Dependent Claims (2, 3, 4, 5)
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Specification