Liquid coolant circulating system employing intergrated pump/accumulator
AssigneeSundstrand Corporation
InventorWilliam E. Seidel
Life of this patent
Estimating the term…
Abstract
An integrated pump and accumulator assembly for use in a system circulating a liquid coolant or the like. A housing defines a pump chamber and an integral closed accumulator chamber. A pump is disposed in the pump chamber and includes a coolant circulating inlet and an outlet. A hermetically sealed expandable and contractable reservoir is disposed in the accumulator chamber. A liquid conduit communicates between the pump chamber and the accumulator chamber on one side of the expandable and contractable reservoir whereby expansion and contraction of the coolant is accommodated by the reservoir. The accumulator chamber is charged with a gas on an opposite side of the reservoir.
Claims7
In a system circulating a liquid coolant or the like under pump pressure, an integrated pump and accumulator, comprising:
- housing means including a casing portion defining a pump chamber and an elongated accumulator portion coupled to and projecting from one end of the casing portion defining an integral closed accumulator chamber;
- outwardly projecting flange means coupling said casing portion and said accumulator portion of the housing means;
- pump means disposed in said pump chamber and including coolant circulating inlet and outlet means;
- hermetically sealed expandable and contractable reservoir means shaped complementary to the elongated accumulator portion of the housing and nested within the interior of said accumulator chamber;
- liquid conduit means communicating between the pump chamber and the accumulator chamber on one side of the expandable and contractable reservoir means whereby expansion and contraction of the coolant is accommodated by the reservoir means;
- and
- said accumulator chamber being charged with a gas on an opposite side of the reservoir means.
In a system circulating a liquid coolant or the like under pump pressure, an integrated pump and accumulator, comprising:
- housing means including a casing portion defining a pump chamber and a separate elongated accumulator portion coupled to and projecting from one end of the casing portion defining an integral closed accumulator chamber, the accumulator portion having a closed end remote from the casing portion and an open end coupled to the casing portion, said casing portion and accumulator portion being coupled by outwardly projecting flange means;
- pump means disposed in said pump chamber within the casing portion of the housing and including coolant circulating inlet and outlet means;
- hermetically sealed expandable and contractable reservoir means shaped complementary to the elongated accumulator portion of the housing and nested within the interior of said accumulator chamber, the reservoir means having a closed end remote from the casing portion of the housing and an open end adjacent said one end of the casing portion;
- and
- liquid conduit means communicating between the pump chamber and the accumulator chamber on one side of the expandable and contractable reservoir means, through the open end of the reservoir means, whereby expansion and contraction of the coolant is accommodated by the reservoir means.
Dependencies are inferred from the claim text.