Patent ID: 7913715

Claim:
A relief valve, comprising: a body; a damping chamber in the body; a poppet in the body, wherein the poppet includes an end in the damping chamber; and a check valve in the damping chamber, wherein: the body includes a first inlet through which fluid flows to a seat of the poppet; the body includes a second inlet facing the same direction as the first inlet, through which the fluid flows into the damping chamber; the check valve includes a sealing member sealing the second inlet, the sealing member and the poppet are connected to each other and are biased in the same direction, and the connection between the poppet and sealing member causes the sealing member to unseat when the poppet unseats so that the fluid enters into damping chamber and exerts pressure on the poppet in an opening direction of the poppet.