Compressor Suction Valve Cushioning Member

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Solution Overview

Problem

Reciprocating compressors experience impact force and noise issues due to direct collisions between the suction valve and valve plate during the compression cycle, leading to potential damage and reduced efficiency.

Innovation Solution

Incorporating a cushioning member between the suction valve and valve plate, which is elastically deformed upon contact, reducing the impact force and noise by acting as a shock absorber and allowing for a thinner valve design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the suction valve directly contacts the valve plate during opening and closing, then the valve operation is simple and reliable, but impact force and noise increase causing potential damage

Engineering Contradiction:

Improvevalve operation reliabilityVSAvoidimpact force and noise

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

A cushioning member is introduced as an intermediary element between the suction valve and the valve plate. This cushioning member absorbs impact forces during valve operation, reducing noise and preventing damage to the valve and valve plate while maintaining the simplicity and reliability of the valve operation mechanism

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The cushioning member is pre-installed between the suction valve and valve plate to provide beforehand cushioning. This preventive measure reduces impact forces before they can cause damage, allowing the suction valve to be designed with reduced thickness while maintaining operational reliability

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Strength

If the suction valve is made thicker to withstand impact force, then durability improves, but compression efficiency decreases due to increased valve thickness

Engineering Contradiction:

Improvevalve durabilityVSAvoidcompression efficiency

Core Design Contradiction:

StrengthVSProductivity

Solution Approach 1:

The cushioning member provides beforehand cushioning that protects the suction valve from impact forces. This allows the suction valve to be designed with reduced thickness since the cushioning member absorbs the impact, thereby improving compression efficiency while maintaining valve durability through the protective cushioning mechanism

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The cushioning member effectively reduces the impact force on the suction valve, minimizing damage and noise, while enhancing compression efficiency by allowing for a more compact design.

Implementation Method 1

configured to be elastically deformed by contact with the suction valve if the suction valve is moved to open or close the suction port

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS20250101972A1compressor

Publication Date: 2025.03.27 SAMSUNG ELECTRONICS CO LTD

AI summary

A compressor may include a valve plate having a suction port, a cylinder forming a compression chamber, a piston in the compression chamber, and which is movable in the compression chamber, a suction valve unit coupled to the valve plate and having a suction valve which is movable, based on movement of the piston, to open and close the suction, and a cushioning member disposed between the valve plate and the suction valve unit, outside of the suction port, and configured to be elastically deformed by contact with the suction valve if the suction valve is moved to open or close the suction port.