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US 10,371,272 B2Granted
Shuttle valve
AssigneeThe Subsea Company
InventorBarry J McMiles
Life of this patent
Estimating the term…
Abstract
A shuttle valve has a housing with a plurality of inlet ports, an outlet port for fluid flow, and a passageway for fluid to flow from any one of the inlet ports to the outlet port. Each Inlet port has an associated plunger configured one to the other such that when sufficient pressurized fluid is flowing into any one of the inlet ports, fluid is prevented from flowing into any other inlet port. The plungers include male and female mating portions with a radial seal between them. A biasing spring allows one of the plungers to allow backward fluid flow through the associated inlet port when not under pressure.
Claims14
A shuttle valve assembly comprising:
- a housing with a plurality of inlet ports and an outlet port for fluid flow;
- said housing having a passageway for fluid to flow from any one of said plurality of inlet ports to said outlet port;
- each of said plurality of inlet ports has an associated plunger;
- said plurality of plungers configured one to the other such that when sufficient pressurized fluid is flowing into any one of the plurality of inlet ports, fluid is prevented from flowing via a radial seal disposed between each of said plungers into any other of the plurality of inlet ports;
- a biasing spring positioned axially in the housing against only one of the plungers to permit backflow through its port when no pressurized fluid flow is present;
- and
- one or more of the plurality of plungers includes a male portion and a female portion each having a circumferential outer edge, where the plungers are mated together for selective engagement to each other in a fluid blocking position, each of said plungers having an aperture transverse to each plunger positioned opposite to and accessible through one of each port by a tool to positively mate the male-female connection.
4 more elements
A shuttle valve assembly comprising:
- a housing having a plurality of inlet ports and an outlet port for fluid flow;
- said housing having a passageway for fluid to flow from any one of said plurality of inlet ports to said outlet port;
- each of said plurality of inlet ports has an associated plunger;
- a plurality of plungers configured one to the other such that when sufficient pressurized fluid is flowing into any one of said plurality of inlet ports, fluid is prevented from flowing into any other of the said plurality of inlet ports via a radial seal between each of said plungers;
- a biasing spring positioned along a longitudinal axis of the housing against only one of the plungers to permit backflow through its port when no pressurized fluid flow is present;
- and
- each of said plurality of plungers includes a male portion and a female portion mated together for selective engagement to each other in a fluid blocking position with said radial seal positioned there-between said plungers about the end circumferential edge of each plunger, each of said plungers having an aperture transverse to each plunger positioned opposite to and accessible through one of each port by a tool to positively mate the male-female connection.
4 more elements
A shuttle valve assembly comprising:
- a housing with a plurality of inlet ports and an outlet port for fluid flow;
- said housing having a passageway for fluid to flow from any one of said plurality of inlet ports to said outlet port;
- each of said plurality of inlet ports has an associated plunger with a radial seal disposed between each inlet port and associated plunger;
- the plurality of plungers configured one to the other such that when sufficient pressurized fluid is flowing into any one of the plurality of inlet ports, fluid is prevented from flowing into any other of the plurality of inlet ports;
- a biasing spring positioned in a longitudinal axis of the housing against only one of the plungers to permit backflow through its port when no pressurized fluid flow is present;
- and
- said plurality of plungers each includes a male portion and a female portion mated together for selective engagement to each other in a fluid blocking position, each of said plungers having an aperture transverse to each plunger positioned opposite to and accessible through one of each port by a tool to positively mate the male-female connection.
4 more elements
Dependencies are inferred from the claim text.