Labyrinth Compressor Cylinder Jacket Cooling
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Solution Overview
Problem
Labyrinth piston compressors face issues with one-sided wear of the piston leading to increased gap width and leakage due to uneven temperature distribution, causing thermal distortion and potential piston seizure.
Innovation Solution
A housing upper part with an axially symmetrical temperature distribution is designed, featuring a gas distribution housing that encloses the cylinder jacket circumferentially, ensuring the fluid flows around the cylinder jacket uniformly, maintaining a consistent temperature and preventing thermal distortion, and made of aluminum or aluminum alloy for improved low-temperature performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the gap between piston and cylinder wall is kept small to reduce leakage, then compression efficiency is improved, but one-sided wear occurs due to uneven temperature distribution
Solution Approach 1:
The patent introduces cooling channels specifically at the locations where heat accumulation occurs most intensely (near the cylinder head and cylinder wall), creating non-uniform cooling distribution that matches the non-uniform heating pattern. This localized cooling approach addresses the thermal imbalance without requiring uniform cooling throughout the entire cylinder assembly.
Solution Approach 2:
The patent introduces cooling fluid (intermediary substance) flowing through cooling channels to transfer heat away from the cylinder wall and piston area. This intermediary cooling medium absorbs excess heat and transports it to cooling outlets, preventing direct thermal transfer that causes one-sided wear while maintaining the small gap necessary for low leakage.
2Temperature
If cooling is applied to reduce thermal distortion, then temperature uniformity is improved, but additional cooling structures increase device complexity
Solution Approach 1:
The cooling channels are integrated directly into the existing cylinder jacket structure, merging the cooling function with the structural component. The cooling channels utilize the cylinder wall space and are formed as part of the cylinder casting or machining process, eliminating the need for separate external cooling jackets or attachments.
Solution Approach 2:
The cooling channels serve multiple functions simultaneously: they provide structural support as part of the cylinder jacket, enable thermal management by removing heat, and can be designed to accommodate mounting features for other components. The cooling fluid passages also serve as flow distribution manifolds for uniform cooling across different zones.
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 reduces wear and tear, maintains a small gap between the piston and cylinder, minimizing leakage, enabling efficient and reliable operation at low temperatures, and allowing for higher pressure compression with lower operational speeds.
Implementation Method 1
the cooling fluid conductively connected to the gas distribution interior
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The housing upper part (1) for a labyrinth piston compressor comprises a cylinder barrel (2) running in the direction of a longitudinal axis (L), with a cylinder interior (2a) and a cylinder barrel exterior (2e), wherein the cylinder barrel (2) has at least one cylinder inlet opening (4, 4a, 4b) or at least one cylinder outlet opening (6, 6a, 6b) which open into the cylinder interior (2a), wherein a gas distribution housing (9a) at least partially encloses the cylinder barrel (2) in the circumferential direction with respect to the longitudinal axis (L) such that there is formed, between the gas distribution housing (9a) and at least one part section (2g) of the cylinder barrel exterior (2e) of the cylinder barrel (2), a gas distribution interior (9b), wherein the part section (2g) is axisymmetric with respect to the longitudinal axis (L), wherein the gas distribution interior (9b) is fluidically connected to the cylinder interior (2a) either via the cylinder inlet opening (4, 4a, 4b) or the cylinder outlet opening (6, 6a, 6b), and wherein the gas distribution housing (9a) comprises either a gas inlet (9) or a gas outlet (10) which is fluidically connected to the gas distribution interior (9b).