Patent ID: 9383021
Filing Date: 2016-07-05
CPC Classification: F16K,Y10T

Claim Text:
1. A relief valve comprising: a valve seat defining a fluid passage with a longitudinal axis (L); a valve plate with a valve plate face, which is configured to be brought into a pass-through position at a response pressure within said passage, in which the relief valve is open, and the valve plate is configured to be brought into a closed position, in which the relief valve is closed and the valve plate bears against the valve seat in a singular continuous annular contact region by means of the valve plate face; and a guide configured to guide the valve plate along the longitudinal axis (L) between the closed position and the pass-through position; wherein the valve plate has a modulus of elasticity of at least 1000 N/mm wherein the valve plate deforms in the closed position as a result of a closing force acting thereon, in such a way that the valve plate face in the closed position forms an angle α, which is different from 0°, between the valve plate face in the closed position and the valve plate face in the pass-through position, wherein the valve plate is moveable along the longitudinal axis (L) to bring the valve plate from the closed position into the pass-through position and vice versa, wherein the valve plate and the guide move together along the longitudinal axis (L) to bring the valve plate from the closed position into the pass-through position at the response pressure, and wherein the valve plate and the valve seat make contact only in the singular continuous annular contact region when in the closed position, wherein a thickness of the valve plate increases toward its center, and wherein the valve plate comprises a plurality of disks arranged concentrically with one another, of which the diameter increases toward the valve seat.