Accumulator Pipe Segmentation to Reduce Compressor Vibration Transfer
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Solution Overview
Problem
Existing accumulator designs suffer from vibration transfer from compressors to accumulators via connection pipes, leading to noise issues and requiring complex bending processes for pipe formation.
Innovation Solution
The accumulator design separates the connection pipe and gas-liquid separation pipe, allowing the connection pipe to be formed as a straight pipe, minimizing vibration transfer and eliminating the need for bending, while using a liquid refrigerant inflow preventing plate to stabilize the gas-liquid separation pipe and prevent liquid refrigerant flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection pipe is formed as a single pipe extending from the compressor side surface through the accumulator bottom surface in an L-shape, then the connection between compressor and accumulator is achieved, but the vibration generated in the compressor is transferred to the accumulator through the connection pipe causing large noise
Solution Approach 1:
The connection pipe is divided into two separate pipes: a first connection pipe for connecting the compressor and a second connection pipe for gas-liquid separation. This segmentation prevents vibration transfer from the compressor to the accumulator while maintaining connection functionality.
Solution Approach 2:
The gas-liquid separation function is extracted from the main connection pipe and implemented through a separate second connection pipe that extends into the accumulator. This allows the main connection pipe to focus on connection while the separate pipe handles separation, preventing vibration transfer.
2Reliability
If the connection pipe is formed as a single pipe in L-shape to connect compressor side surface and accumulator bottom surface, then connection is achieved, but a bending process is required which increases manufacturing complexity
Solution Approach 1:
The connection system is segmented into two separate straight pipes rather than one bent pipe. The first connection pipe connects the compressor horizontally, and the second connection pipe extends vertically into the accumulator. This eliminates the need for bending processes while maintaining connection reliability.
Solution Approach 2:
The connection approach transitions from a two-dimensional L-shaped bent pipe to a three-dimensional configuration using two separate straight pipes positioned at different locations and orientations. This dimensional change eliminates bending requirements while achieving the same connection function.
3Reliability
If the connection pipe extends to the upper side of the line vertically bisecting the accumulator after passing through the accumulator, then connection is achieved, but vibration from the compressor is transferred to the accumulator causing noise
Solution Approach 1:
The second connection pipe acts as an intermediary element that provides gas-liquid separation functionality. By introducing this intermediate structure, the direct transmission path for vibration is broken, as the second pipe is positioned to extend into the accumulator without being the primary load-bearing connection element.
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
This design significantly reduces noise from vibration and lowers manufacturing costs by allowing the use of less expensive materials for the connection pipe, as it eliminates the need for bending and complex machining processes.
Implementation Method 1
a gas-liquid separation pipe which is accommodated in the case and guides gaseous refrigerant in the case to the connection pipe
Implementation Method 2
a liquid refrigerant inflow preventing plate which is disposed in the case and supports a discharge end of the gas-liquid separation pipe
Data Source
AI summary
An accumulator having a case which forms a space in which liquid refrigerant and gaseous refrigerant are accommodated, a suction pipe connected to a first side of the case, a connection pipe that connects a second side of the case to a suction side of the compressor, and a gas-liquid separation pipe disposed inside the case to guide the gaseous refrigerant to the connection pipe, and in which the gas-liquid separation pipe is disposed inside the case and is separated from the connection pipe.