Scroll Pump Carrier Plate Through-Openings for Assembly Access
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Solution Overview
Problem
Existing scroll vacuum pumps face challenges in improving suction capacity while maintaining assembly accessibility due to the limited ring gap between the carrier plate and the pump housing.
Innovation Solution
The introduction of multiple evenly distributed through openings in the carrier plate allows for improved assembly access by enabling tools to reach fasteners around the circumference, while maintaining a large diameter for enhanced suction capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the carrier plate diameter is increased to improve suction capacity, then the suction capacity is improved, but the annular gap between the carrier plate and pump housing becomes too small to allow tool access for assembly
Solution Approach 1:
The carrier plate is segmented by introducing through-openings that divide the plate into multiple sections. These through-openings create access paths through the carrier plate, allowing tools to reach fastening means located on the rear side of the plate without requiring a large annular gap between the plate and housing.
2Productivity
If the annular gap is reduced to maximize carrier plate diameter, then the suction capacity is improved, but the fastening means become inaccessible to assembly tools
Solution Approach 1:
The through-openings act as intermediaries that provide access paths through the carrier plate. These openings enable assembly tools to reach the fastening means on the rear side of the carrier plate, eliminating the need for a large annular gap and allowing the carrier plate to be maximized in diameter.
3Ease of operation
If multiple fastening means are distributed around the circumference of the sleeve, then the assembly accessibility is improved, but the tool access through the annular gap becomes more difficult
Solution Approach 1:
The carrier plate is segmented by introducing through-openings that divide the plate into multiple sections. These through-openings create access paths through the carrier plate, allowing tools to reach fastening means located on the rear side of the plate without requiring a large annular gap between the plate and housing.
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 enhances assembly accessibility without compromising suction capacity, allowing for easier tool access and reduced risk of tool slippage during assembly, while ensuring process gas can flow unhindered into the pump.
Implementation Method 1
surrounded by a deformable sleeve, such as a bellows, which serves both to seal the drive from the intake area and to prevent the orbiter from rotating
Implementation Method 2
the other spiral, along with its support plate, can be moved along a circular path via an eccentric drive, which is why this spiral, together with its support plate, is also referred to as an orbiter. The movable spiral thus performs a so-called centrally symmetric oscillation
Implementation Method 3
A scroll pump is a positive displacement pump that compresses against atmospheric pressure and can be used, among other things, as a compressor. A scroll vacuum pump can be used to create a vacuum in a chamber connected to the gas inlet
Data Source
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AI summary
The present invention relates to a scroll pump comprising a housing and an orbiter located in the housing, the orbiter having a carrier plate and a spiral extending from the carrier plate. Several through-holes are formed in the carrier plate, through which a housing area located on one side of the carrier plate facing away from the spiral of the orbiter is accessible to a tool for assembly purposes.