Patent ID: 9556886
Date: 2017-01-31
CPC Classifications: F01P,F04D

Claim:
1. A marine pumping system, comprising: a pump including a housing and a flexible impeller rotatably mounted in the housing about a rotation axis, the housing including an inlet and an outlet; a reservoir including a body defining an inlet and an outlet, the body further defining a chamber for storing a quantity of cooling fluid in fluid communication with the inlet and the outlet of the reservoir, wherein the inlet is connected to a source of cooling fluid, the reservoir including a fill port at an upper end of the body and a drain port at a lower end of the body; a first conduit connecting the outlet of the reservoir to the inlet of the pump; and a cooling fluid retention device formed by a bend defining an apex of a second conduit that extends down from the apex to connect the outlet of the housing of the pump to a cooling circuit including a heat exchanger, wherein the cooling fluid retention device is located above and in fluid communication with the outlet of the pump and the inlet to the reservoir so that when operation of the pump is terminated at least a portion of the cooling fluid downstream of the pump is returned by gravity to the pump to wet the impeller and to the reservoir for storage to prime the pump when the pump is started.