Valves with valve closing member attached to the actuated counter-seat and related methods
First Claim
1. A valve assembly used in a reciprocating compressor, the valve assembly comprising:
- an actuator configured to provide a force; and
a valve comprising;
a valve seat comprising an inlet port configured to allow a fluid to flow through the valve seat;
a counter-seat comprising an outlet port configured to allow the fluid to flow through the counter-seat;
a stem attached to the counter-seat and the actuator; and
a valve closing member attached to the counter-seat and configured to cover the inlet port when the counter seat is in a closed position, wherein the counter-seat is configured to receive the valve actuating motion from the actuator and to move between the closed position and an open position in which the valve closing member does not cover the inlet port thereby selectively allowing the fluid to flow from the inlet port of the valve seat to the outlet port of the counter seat and further from the outlet port of the counter seat directly to the compression chamber, andwherein the valve closing member is formed separately from the counter-seat and attached thereof,wherein the counter-seat moves jointly with the actuator.
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0 Petitions
Accused Products
Abstract
A valve assembly in a reciprocating compressor used in oil and gas industry is provided. The valve assembly comprises an actuator configured to a valve actuating motion and a valve. The valve has a valve seat comprises an inlet port configured to allow a fluid to flow through the valve seat, a counter-seat comprising an outlet port configured to allow the fluid to flow through the counter-seat, and a valve closing member attached to the counter-seat and configured to cover the inlet port when the counter-seat is in a closed position. The counter-seat is configured to receive the valve actuating motion and to move between the closed position and an open position in which the valve closing member does not cover the inlet port thereby selectively allowing the fluid to flow on a flow path which comprises the inlet port and the outlet port.
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Citations
20 Claims
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1. A valve assembly used in a reciprocating compressor, the valve assembly comprising:
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an actuator configured to provide a force; and a valve comprising; a valve seat comprising an inlet port configured to allow a fluid to flow through the valve seat; a counter-seat comprising an outlet port configured to allow the fluid to flow through the counter-seat; a stem attached to the counter-seat and the actuator; and a valve closing member attached to the counter-seat and configured to cover the inlet port when the counter seat is in a closed position, wherein the counter-seat is configured to receive the valve actuating motion from the actuator and to move between the closed position and an open position in which the valve closing member does not cover the inlet port thereby selectively allowing the fluid to flow from the inlet port of the valve seat to the outlet port of the counter seat and further from the outlet port of the counter seat directly to the compression chamber, and wherein the valve closing member is formed separately from the counter-seat and attached thereof, wherein the counter-seat moves jointly with the actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A reciprocating compressor, comprising:
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an actuator configured to provide a valve actuating motion; a compression chamber; and a valve comprising; a valve seat comprising an inlet port configured to allow a fluid to flow through the valve seat; a counter-seat comprising an outlet port configured to allow the fluid to flow through the counter-seat; a stem attached to the counter-seat and the actuator; and a valve closing member attached to the counter-seat and configured to cover the inlet port when the counter seat is in a closed position, wherein the counter-seat is configured to receive the valve actuating motion from the actuator and to move between the closed position and an open position in which the valve closing member does not cover the inlet port thereby selectively allowing the fluid to flow from the inlet port of the valve seat to the outlet port of the counter seat and further from the outlet port of the counter seat directly to the compression chamber, wherein the valve closing member is formed separately from the counter-seat and attached thereof, wherein the counter-seat moves jointly with the actuator. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of retrofitting a compressor initially having a valve with a spring between a valve closing member attached to a counter-seat of the valve, wherein the valve is initially configured to actuate due to a differential pressure, the method comprising:
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fixedly attaching the valve closing member to the counter-seat of the valve; connecting an actuator to the counter-seat to provide a force to the counter-seat to move the counter-seat between a closed position in which the valve closing member covers an inlet port through a seat of the valve and an open position in which the valve closing member does not cover the inlet port and to provide a force to the counter-seat to move the counter-seat from the open position to the closed position, wherein the valve closing member is formed separately from the counter-seat and attached thereof, wherein the counter-seat moves jointly with the actuator. - View Dependent Claims (20)
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Specification