Getter Pump Cartridge Orientation for High Gas Sorption
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Solution Overview
Problem
Existing standalone getter pumps face limitations in achieving high gas sorption velocity, particularly in applications like particle accelerators where uniform vacuum levels are crucial, and they are not optimized for handling active gases like H2, CO, and CO2.
Innovation Solution
A getter pump design featuring a casing as a solid of revolution with getter cartridges mounted at angles of 30° or less, preferably 10°, and arranged in multiple subassembly planes to enhance gas sorption velocity, using a cylindrical casing with getter cartridges having linear central supports and spaced getter elements, allowing for flexible placement and integration in constrained geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If getter cartridges are mounted with linear central supports parallel to the casing axis (90° angle with positioning plane), then the structural simplicity is maintained, but the gas sorption velocity is insufficient for high-performance applications
Solution Approach 1:
The invention transitions from mounting getter cartridges with linear supports parallel to the casing axis (90° to positioning plane) to mounting them at shallow angles (≤30°, preferably ≤10°) relative to the positioning plane. This angular reorientation optimizes the effective surface area of getter elements presented to incoming gas molecules, significantly enhancing gas sorption velocity without adding structural complexity
Solution Approach 2:
The invention changes the mounting angle parameter of the linear central supports relative to the positioning plane from 90° to ≤30° (preferably ≤10°). This parameter modification optimizes the geometric relationship between getter elements and gas flow paths, maximizing the effective sorption area and achieving pumping speeds exceeding 2500 l/s
2Speed
If multiple getter cartridges are added to increase pumping speed, then the gas sorption velocity improves, but the device complexity and space requirements increase
Solution Approach 1:
By reorienting cartridges at shallow angles (≤10°) to the positioning plane rather than mounting them perpendicular, the invention maximizes the effective sorption area of each cartridge. This allows achieving pumping speeds >2500 l/s with fewer cartridges arranged in multiple subassembly planes, reducing overall device complexity compared to conventional perpendicular mounting
3Speed
If getter cartridges are mounted at shallow angles (≤10°) to the positioning plane, then the gas sorption velocity increases significantly, but the manufacturing and assembly precision requirements increase
Solution Approach 1:
The invention specifies a shallow mounting angle range (≤30°, preferably ≤10°) for linear central supports relative to the positioning plane. This angular configuration optimizes gas sorption velocity while providing a clear geometric definition that facilitates precise manufacturing and assembly, achieving pumping speeds >2500 l/s
Solution Approach 2:
By defining the mounting angle parameter as ≤10° (rather than the conventional 90°), the invention creates a well-specified geometric relationship that balances performance optimization with manufacturability. The shallow angle provides sufficient tolerance margin while achieving the desired pumping speed enhancement
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 improved design achieves a pumping speed higher than 2500 l/s, outperforming conventional configurations by allowing for more cartridges and flexible placement, thus addressing the need for high gas sorption velocity in applications like particle accelerators without compromising capacity.
Implementation Method 1
a plurality of spaced getter elements mounted on said linear central support... capable of further improving the pumping speed... high gas sorption velocity
Data Source
AI summary
A getter pump is described. The getter pump has a casing, whose shape is a solid of revolution with a revolution axis, and a plurality of getter cartridges mounted within the getter pump casing, each cartridge having a linear central support and spaced getter elements mounted on the linear central support. A getter cartridge orientation plane containing the linear central support and parallel to the revolution axis, and a getter cartridge positioning plane orthogonal to the revolution axis and intersecting the midpoint of a linear central support are defined. For each cartridge, the angle formed by the getter cartridge positioning plane with the linear control supports is equal to or less than 30°.