Pressure regulator
AssigneeFisher Jeon Gas Equipment (Chengdu) Co., Ltd.
InventorsBiao Zhou, Zhongyang Xiao
Life of this patent
Estimating the term…
Abstract
A regulator is disclosed that controls fluid flow through a control valve via a linkage including a lever that is acted upon by a spring cylinder acting in a direction perpendicular to the direction of fluid flow through pipes connected to the control valve. The closure performance of the control valve of the regulator is optimized by the direction the spring cylinder acts and the mechanical advantage the lever provides. The regulator further includes a diaphragm and diaphragm cover, and the regulator is configured to allow the diaphragm cover to be stamped rather than cast.
Claims20
A fluid control device, comprising:
- an actuator having a diaphragm;
- a body having a seat that is positioned along a fluid flow path;
- a control member that is moveable between a first position in which the control member is spaced away from the seat and a second position in which the control member contacts the seat;
- and
- a linkage that operably couples the diaphragm with the control member, wherein the linkage is configured to transfer a movement of the diaphragm along a first axis into a movement of the control member along a second axis that is aligned or parallel with the first axis, wherein the linkage comprises a lever and a link, wherein the lever is pivotable about a connector that is directly fixed to a housing of the actuator, and wherein the connector is engaged with a groove in the lever such that a pivot point of the lever about the connector is moveable along the direction of the groove by the cooperation of the groove and the connector.
A fluid control device, comprising:
- an actuator housing having a diaphragm that divides the actuator housing into an upper portion and a lower portion;
- a body that defines at least a portion of a flow path between an inlet and an outlet;
- a control member that is moveable between a first position that permits fluid flow along the flow path and a second position that restricts fluid flow along the flow path;
- and
- a linkage that operably couples the diaphragm and the control member, wherein the linkage comprises:
- a lever that is operably coupled to the diaphragm, wherein the lever has a first end that is moveable along a first axis based on movement of the diaphragm, wherein the lever is pivotable about a connector that is directly fixed to the actuator housing, and wherein the connector is engaged with a groove in the lever such that a pivot point of the lever about the connector is moveable along the direction of the groove by the cooperation of the groove and the connector;
- and
- a link that is operably coupled to the control member and pivotably coupled to the lever, wherein the link is configured to move the control member along a second axis that is aligned or parallel with the first axis.
Dependencies are inferred from the claim text.