Check valve
AssigneeLG Electronics Inc.
InventorsJeong Ho Lee, Kwang Hyup An, In Seop Lee
Life of this patent
Estimating the term…
Abstract
Disclosed is a check valve comprising a valve plate having an inlet hole that draws in a low pressure fluid by an open-and-shut operation driven by a piston movement, and a discharging hole that discharges a high pressure fluid through an open-close operation; and a check valve shaped in a helical plate spring structure coupled with the inlet hole and discharging hole of the valve plate. Accordingly, an interference in a flow of the fluid is minimized while the valve is opened, thereby the flowing efficiency of the fluid is enhanced, and the valve is closed smoothly along to a helix, thereby noises and damage to the system caused by shock are prevented.
Claims10
A check valve comprising:
- a valve plate having an inlet hole that draws in a low pressure fluid by an open-and-shut operation driven by a piston movement, and a discharging hole that discharges a high pressure fluid through an open-close operation;
- and
- a check valve shaped in a helical plate spring structure coupled with the inlet hole and discharging hole of the valve plate.
A check valve shaped in helical plate spring shape to prevent a flow of the fluid when the fluid flows in one direction by maintaining a pressured state as the parts of the check valve overlaps, and in case the fluid flows in the other direction, the valve is stretched out to promote the fluid to flow in.
A check valve comprising:
- a valve plate having an inlet hole which draws in a low pressure fluid by an open-and-shut operation driven by a piston movement and a discharging hole through that discharges a high pressure fluid by an open-and-shut operation;
- a check valve shaped in a helical plate spring structure coupled with the inlet hole and discharging hole of the valve plate;
- and
- a head cover, which is formed with a flow channel where the fluid draws in and discharge from, for sealing the valve plate in order to prevent a leakage of the fluid.
Dependencies are inferred from the claim text.