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US 2008/0099087 A1Published application
Equalization of pressure in an electronically controlled valve
AssigneeEnfield Technologies, LLC
InventorsDaniel C. Cook, Blake D. Carter, Roger Edwin Howe
Life of this patent
Estimating the term…
Abstract
Disclosed herein is an electronically controlled valve. The electronically controlled valve includes a valve body and a spool. The valve body includes at least one fluid inlet port, at least one fluid outlet port, an upper cavity, and a lower cavity. The spool is disposed within the valve body. The spool includes a first end and an opening. The opening allows the lower cavity to be in fluid communication with the upper cavity.
Claims20
A controlled valve comprising:
- a valve body comprising at least one fluid inlet port, at least one fluid outlet port, an upper cavity, and a lower cavity;
- and
- a spool disposed within the valve body, wherein the spool comprises a first end and an opening, and wherein the opening allows the lower cavity to be in fluid communication with the upper cavity.
A servo valve comprising:
- a valve body comprising at least one fluid inlet port, at least one fluid outlet port, an upper cavity, and a lower cavity;
- a valve actuator assembly disposed within the upper cavity, wherein the valve actuator assembly comprises a spool connecting portion, and wherein the spool connecting portion comprises an opening extending therethrough;
- a sleeve between the upper cavity and the lower cavity;
- and
- a spool slidably disposed within the sleeve, wherein the spool comprises a fluid conduit extending from a first open end of the spool to a second open end of the spool, wherein the first open end is received by the opening of the spool connecting portion, and wherein the second open end is at the lower cavity.
2 more elements
A method of assembling an electronically controlled valve comprising:
- providing a valve body with at least one fluid inlet port, at least one fluid outlet port, an upper cavity, a lower cavity, and a sleeve, wherein the sleeve is between the upper cavity and the lower cavity;
- installing a spool within the sleeve, wherein the spool comprises an opening, and wherein the opening allows for fluid communication between the lower cavity and the upper cavity;
- and
- connecting a valve actuator assembly to an end of the spool.
1 more element
Dependencies are inferred from the claim text.