A combined electric pump with low inlet pressure and high boosting capacity
A technology with inlet pressure and high boost pressure, which is applied to engine components, machines/engines, charging systems, etc., and can solve the problems of pipeline layout and other structures that occupy large space, complex oil supply adjustment systems, and complex engine oil supply control systems. and other problems, to achieve the effect of reducing control complexity and cost, reducing system volume and weight space, and reducing overall volume and installation space
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[0027] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0028] The present invention designs a combined electric pump in which the centrifugal pump and the gear pump are arranged at both ends of the driving motor. The two pumps work on the same axis and at the same speed as the motor. The centrifugal pump provides cooling fuel at a certain pressure for the motor, and at the same time ensures the inlet pressure demand of the gear pump; The gear pump adopts the gear pump with end surface compensation structure. By introducing the high-pressure oil at the outlet of the pump into the rear end surface of the gear floating bearing assembly, by reasonably determining the area of the contact surface and pressure bearing surface, the high pressure oil can form a counter pressure on t...
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