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Valves with valve closing member attached to the actuated counter-seat and related methods

  • US 10,253,765 B2
  • Filed: 12/14/2012
  • Issued: 04/09/2019
  • Est. Priority Date: 12/22/2011
  • Status: Active Grant
First Claim
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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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