Movable Intake Valve Seat for Reciprocating Compressor Capacity Control
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Solution Overview
Problem
Conventional reciprocating compressors face difficulties in finely adjusting gas intake amounts in multiple cylinders, leading to inadequate operation under varying usage conditions.
Innovation Solution
A reciprocating compressor design that includes a movable intake valve seat or back member configured to move in the axial direction, controlled by an actuator, allowing for adjustable intake valve range and precise gas intake control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional reciprocating compressor uses fixed intake valves, then the structure is simple, but the gas intake amount cannot be finely adjusted
Solution Approach 1:
The patent applies the dynamics principle by making the intake valve seat movable in the axial direction through an actuator mechanism. This allows the valve seat to dynamically adjust its position, thereby controlling the opening degree and gas intake amount. The movable valve seat transforms the fixed structure into a dynamic system that can adapt to different operating conditions, resolving the contradiction between adjustability and structural simplicity.
Solution Approach 2:
The patent implements parameter changes by varying the axial position of the intake valve seat to control the gas intake amount. By changing the position parameter of the valve seat, the system achieves fine adjustment of the gas intake without requiring complex multi-component valve mechanisms. This parameter-based control approach balances adaptability with reasonable structural complexity.
2Adaptability or versatility
If the intake valve movable range is increased, then the gas intake amount can be adjusted more, but the power consumption increases
Solution Approach 1:
The patent applies partial action by providing a limited movable range for the intake valve seat rather than allowing full axial movement. The actuator is designed to move the valve seat only within the necessary range to achieve the required gas intake adjustment, avoiding excessive movement that would consume unnecessary energy. This optimized approach balances adjustment capability with energy efficiency.
Data Source
AI summary
A reciprocating compressor includes: a cylinder forming a cylinder chamber; an intake valve disposed around the cylinder chamber; a movable part including either an intake valve seat configured to seat the intake valve or a back member located on an opposite side of the intake valve from the intake valve seat, and configured to move in an axial direction of the cylinder; and an actuator for moving the movable part in the axial direction to change a movable range of the intake valve between the intake valve seat and the back member.