Abstract A speed limiting valve for use in hydraulic equipment particularly in a hydraulic line between flanges therein includes a valve plate having an opening therethrough for bi-directional line flow. There is a cage on and upstanding from the other side of the plate surrounding the opening. A stationary valve stem is mounted on the cage and extends through the opening and serves as a guide for a slidably mounted valve disk movable between one position in abutment with the valve seat and another position spaced away from the valve seat. A spring surrounds the stem and abuts against part of the cage and against the valve disk and urges the valve disk toward the other position against a stop on the stem. In the other position the disk is disposed in a chamber having diverging and converging walls. The valve disk has flow passages through it so that even when the disk is seated there is still an opportunity for reduced hydraulic flow.
A surge flow speed limiting valve for use in hydraulic equipment comprising a hydraulic line having a valve plate, the valve plate being formed with an opening therethrough for allowing bi-directional line flow, means forming cage means on and projecting from one side of said plate surrounding said opening, means forming a valve seat on the other side of said plate surrounding said opening, a stationary valve stem mounted on said cage means and extending through said opening, a valve disk having at least one opening slidably mounted on said stem and movable thereon between a first position in abutment with said seat and a second position spaced away from said seat, spring means surrounding said stem and abutting said cage means and said valve disk resiliently pressing the valve disk toward said second position, means for stopping said valve disk in said second position, and means forming flow passages through said valve disk for allowing flow through the opening in the valve disk when in said second position.
Claim 2
Dependent Claim
169 words
A surge flow speed limiting valve for use in hydraulic equipment comprising a hydraulic line having a valve plate, the valve plate being formed with an opening therethrough for allowing bi-directional line flow, means forming cage means on and projecting from one side of said plate surrounding said opening, means forming a valve seat on the other side of said plate surrounding said opening, a stationary valve stem mounted on said cage means and extending through said opening, a valve disk having at least one opening slidably mounted on said stem and movable thereon between a first position in abutment with said seat and a second position spaced away from said seat, spring means surrounding said stem and abutting said cage means and said valve disk resiliently pressing the valve disk toward said second position, means for stopping said valve disk in said second position, and means forming flow passages through said valve disk for allowing flow through the opening in the valve disk when in said second position.
Claim 3
Dependent Claim
51 words
A speed limiting valve as in claim 1 including a body in said hydraulic line abutting said valve plate and surrounding said valve seat, and means in said body defining a chamber in communication with said opening and having diverging and converging walls encompassing said valve disk in said second position.
Claim 4
Dependent Claim
30 words
A speed limiting valve as in claim 1 in which said means for determining said second position includes an adjustable interengagement between said valve stem and said valve cage means.
Claim 5
Dependent Claim
27 words
A speed limiting valve as in claim 1 in which said flow passages through said valve disk are divergent in the direction of said valve cage means.