Inline Vacuum Pump Structure for Stable Vacuum and Universal Ejectors

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Solution Overview

Problem

Conventional inline vacuum pumps are complex to design and implement, with unstable vacuum creation and limited nozzle or ejector selection due to intricate component structures.

Innovation Solution

A simplified inline vacuum pump design featuring a cylindrical housing with a discharge port, a guide with a discharge passage, a vacuum ejector with an inlet and outlet, and a gripper connector with an exhaust passage, allowing for easy selection and application of universal nozzles or ejectors, and incorporating a non-return valve for efficient vacuum creation and release.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional inline vacuum pump uses a delicately designed double pipe nozzle structure, then the vacuum pump can discharge air effectively, but the design and implementation becomes complicated and difficult

Engineering Contradiction:
Improvevacuum discharge effectivenessVSAvoidnozzle structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the delicately designed, complex double pipe nozzle with a simple universal nozzle or ejector that can be easily manufactured and replaced. This simple nozzle structure, while less sophisticated, achieves sufficient vacuum discharge effectiveness without the manufacturing and implementation difficulties of the complex original design.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Ease of operation

If the vacuum pump portion moves up and down along with the slider, then the pump can operate with movable components, but the vacuum creation and maintenance becomes unstable

Engineering Contradiction:
Improvemovable pump operationVSAvoidvacuum stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent extracts the vacuum pump portion from the movable slider structure and makes it a separate, stationary component. This allows the pump to remain fixed in position, ensuring stable vacuum creation and maintenance, while the slider and gripper can still move independently for operation.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If the end of the vacuum pump portion is air-tightly coupled with the discharge passage, then the pump can maintain sealing, but the selection of pump size is limited

Engineering Contradiction:
Improveair-tight sealingVSAvoidpump size selection
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent employs a universal nozzle or ejector design that can be adapted to different pump sizes and configurations. This universal component maintains air-tight sealing through standardized coupling mechanisms while allowing flexibility in selecting pump dimensions and specifications for different applications.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Productivity

If intricate intake and discharge passages are designed in the slider, then the pump can function with integrated passages, but the design and implementation becomes complicated

Engineering Contradiction:
Improveintegrated passage functionVSAvoidpassage structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent removes the intricate intake and discharge passages from the slider structure and relocates them to dedicated external passages. This separation simplifies the slider design and implementation while maintaining the integrated functional capability of the vacuum pump system through externally routed passages.

Inventive Principle:
Principle #2Taking out (Extraction)

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 design simplifies the implementation of inline vacuum pumps, stabilizes vacuum creation, and allows for flexible nozzle or ejector selection, making the device easier to use and more effective in practice.

Implementation Method 1

when the compressed air introduced at high speed passes through the vacuum pump 9 and is discharged, the internal air of the gripper flows along the intake passage 12 into the slider 8

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Data Source

PatentUS9151300B2Inline vacuum pump
Publication Date: 2015.10.06 KOREA PNEUMATIC SYST CO LTD
  • US9151300B2 patent drawing
  • US9151300B2 patent drawing
  • US9151300B2 patent drawing

AI summary

The present invention relates to a vacuum pump, and more particularly, to an inline vacuum pump. The inline vacuum pump according to the present invention comprises a cylinder-type housing, an ejector, and a guide which are mounted in series on the upper side and the lower side in the housing, and a gripper connector coupled to the lower portion of the housing. The guide is provided with a passage and a path through which compressed air is discharged and exhaust air is absorbed. According to the present invention, device design and production are easier than in the related art, and a vacuum is generated and maintained in a stable manner. Also, the ejector can be relatively freely selected and applied.