Modular directional control valve
AssigneeProserv Operations, Inc.
InventorPreston Weintraub
Life of this patent
Estimating the term…
Abstract
A directional control valve includes: a base and a slider longitudinally movable relative to the base. The base includes: a rectangular body having a longitudinal bore, a transverse bore, and a chamber formed at an intersection between the bores; supply and function seal plates, each having a stinger disposed in the transverse bore, one or more receptacles, and a passage extending from each receptacle through the stinger; and a supply, first function, and second function blocks, each fastened to the body and having a stinger disposed in the respective receptacle and a coupling for connection to a flow line. The slider includes: a sliding seal assembly disposed in the chamber; and an operating rod fastened to the seal assembly.
Claims19
A directional control valve, comprising:
- a base, comprising:
- a body having a longitudinal bore, a transverse bore, a chamber formed at an intersection between the longitudinal and transverse bores and an exterior;
- a supply seal plate having a first stinger disposed inwardly of the transverse bore, a first receptacle, and a supply passage extending from the first receptacle through the first stinger, wherein at least the portion of the supply seal plate including the first receptacle extends outwardly of the transverse bore;
- a supply block fastened to the exterior of the body and having a second stinger disposed in the first receptacle and a first coupling for connection to a flow line;
- a function seal plate having a third stinger disposed inwardly of the transverse bore, second and third receptacles, and passages extending from the second and third receptacles through the third stinger wherein at least a portion of the function seal plate extends outwardly of the transverse bore;
- and
- first and second function blocks fastened to the exterior of the body and having respective fourth and fifth stingers disposed in the respective second and third receptacles and respective second and third couplings for connection to flow lines;
- and
- a slider longitudinally movable relative to the base and comprising:
- a sliding seal assembly disposed in the chamber;
- and
- an operating rod fastened to the seal assembly.
A directional control valve, comprising:
- a base, comprising:
- a rectangular body having a longitudinal bore, a transverse bore, and a chamber formed at an intersection between the bores;
- a supply seal plate having a first stinger disposed in the transverse bore, a first receptacle, and a passage extending from the first receptacle through the first stinger;
- a supply block fastened to the body and having a second stinger disposed in the first receptacle and a first coupling for connection to a flow line;
- a function seal plate having a third stinger disposed in the transverse bore, second and third receptacles, and passages extending from the second and third receptacles through the third stinger;
- and
- first and second function blocks fastened to the body and having respective fourth and fifth stingers disposed in the respective second and third receptacles and respective second and third couplings for connection to flow lines;
- and
- a slider longitudinally movable relative to the base and comprising:
- a sliding seal assembly disposed in the chamber;
- and
- an operating rod fastened to the seal assembly, wherein the sliding seal assembly comprises;
- a cylindrical seal carrier;
- a pair of opposed supply and function mechanical seals disposed in a bore of the seal carrier;
- a gland disposed between the supply and function seals, and
- a spring disposed between the supply and function seals for biasing the supply and function seals into engagement with the respective seal plates.
Dependencies are inferred from the claim text.