Suction Assembly One-Way Valve Sealing
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Solution Overview
Problem
Existing suction/compression assemblies are costly to maintain due to the short lifespan of polymeric one-way valves under high temperature conditions and are ineffective for sealing vacuum systems, requiring additional pneumatic valves that increase implementation costs.
Innovation Solution
A suction/compression assembly with a one-way valve positioned within the intake pipe adjacent to the four-way valve seat, reducing component count and ensuring sealing in both pressure and vacuum conditions, regardless of a cooling gas injection system, through hydraulic connection of pipe portions and a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a polymeric ball one-way valve is installed in the exhaust pipe, then the system can seal during suction and pressure operations, but the valve lifespan is markedly reduced due to impingement by high temperature air/gas
Solution Approach 1:
The patent introduces a metallic one-way valve as an intermediary component to replace the polymeric ball valve. This metallic valve serves as a mediator that can withstand high temperature air/gas impingement while maintaining the sealing function, thereby resolving the contradiction between reliability and lifespan.
Solution Approach 2:
The patent changes the material parameter of the one-way valve from polymeric to metallic. This material parameter change enables the valve to resist high temperature conditions, extending its lifespan while maintaining the sealing function during both suction and pressure operations.
2Adaptability or versatility
If a directional valve is arranged in the exhaust pipe for sealing, then it works for pressurized systems, but it is totally ineffective for sealing vacuum systems
Solution Approach 1:
The patent positions the one-way valve in the intake pipe to create a universal sealing solution that functions effectively in both vacuum and pressurized systems. This multi-functional positioning resolves the contradiction by making the sealing mechanism adaptable to different operating conditions.
Solution Approach 2:
The patent inverts the traditional approach by placing the one-way valve in the intake pipe rather than the exhaust pipe. This inversion enables the valve to effectively seal both vacuum and pressurized systems, overcoming the limitation of conventional exhaust pipe positioning.
3Reliability
If pneumatic valves are used to block injection at the end of suction, then vacuum system sealing is achieved, but implementation and maintenance costs considerably increase
Solution Approach 1:
The patent extracts the one-way valve from the exhaust pipe location and repositions it in the intake pipe, eliminating the need for additional pneumatic valves. This extraction and repositioning simplifies the overall valve system while maintaining effective sealing in both vacuum and pressurized conditions.
Solution Approach 2:
The repositioned one-way valve serves multiple functions: sealing during suction, sealing during pressure operations, and preventing backflow. This multi-functionality eliminates the need for separate pneumatic valves, reducing device complexity and costs.
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 assembly achieves reliable sealing and extended valve life, reducing maintenance and manufacturing costs while maintaining operational efficiency in various system conditions.
Implementation Method 1
the one-way valve is raised by the flow directed into the system, while it falls towards the exhaust section of the operating machine as soon as the same is stopped
Implementation Method 2
the volumetric compressor is provided with a cooling gas injection system intended to lower the temperature of the compressor members
Data Source
AI summary
The invention relates to a suction/compression assembly for aspirating/compressing gases from/in a system to/from an external environment. The assembly comprises an operating machine, a four-way valve, an intake pipe and an exhaust pipe connecting an intake section and an exhaust section of the operating machine to said four-way valve, respectively. The assembly is characterized in that it comprises a first body, which defines, in one piece, a chamber of the operating machine, a first portion of the intake pipe and a first portion of said exhaust pipe. The assembly further comprises a second body, which defines, in one piece, a seat of the four-way valve, a second portion of the intake pipe and a second portion of the exhaust pipe. Moreover, the assembly according to the invention comprises a one-way valve arranged within the intake pipe in a position adjacent to the seat of the four-way valve.