Patent ID: 6843235

Claim:
A fuel supply unit, comprising: 1) a fuel pump comprising; i) a motor section, and ii) a pump section driven by the motor section, the pump section pumping a fuel; and 2) a fuel tank for tanking therein the fuel to be pumped by the pump section and to be discharged out of the fuel tank by the pump section, the fuel tank being provided with; i) a motor housing bulkhead sunk into the fuel tank, the motor housing bulkhead comprising; a) an inner section for housing therein one of the following: α) the motor section, and β) a first part of the motor section, b) an outer section provided with one of the following: α) the pump section, with the motor section housed in the inner section, and β) the pump section and a second part of the motor section, with the first part of the motor section housed in the inner section, the inner section of the motor housing bulkhead being substantially sealably separated from the outer section of the motor housing bulkhead, in such a manner as to bring about an oil tightness.