Patent ID: 11964811
Assignee: DELTA ELECTRONICS, INC.
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 13:
14. A liquid storage tank, comprising:
a housing comprising an inner side wall and a protrusion extending from the inner side wall;
a cover attached to the housing;
a piston in the housing, wherein the piston, the housing, and the cover define a tank chamber, and the tank chamber is filled with cooling liquid, wherein the housing comprises a column facing toward the piston, and a distance between the column and the inner side wall of the housing is greater than a length of the protrusion extending within the chamber away from the inner side wall of the housing;
an elastic element connected with the housing and the piston, and the elastic element is free from contact with the cooling liquid; and
an outlet pipe communicating with the tank chamber, wherein an extension direction of an opening of the outlet pipe is not parallel to a direction of movement of the elastic element;
wherein when the cooling liquid is decreased, the piston compressed the tank chamber such that the elastic element is released, and the tank chamber is continuously compressed by pairing the elastic element and the piston.