Double-Walled Lubricant Pump Housing for Clean Pressure Venting
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Solution Overview
Problem
Existing lubricant pumps face challenges with venting elements that are difficult to clean, especially when foreign bodies like insects are present, and are structurally attached, which can cause damage and interfere with installation.
Innovation Solution
A double-walled housing design with intermediate spaces and strategically placed openings for air exchange, allowing for venting to prevent under or over-pressure, while preventing contaminants and damage, using a tubular element for lubricant guidance during overfilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a venting element is fixedly attached to the container, then venting function is provided, but the container structure is enlarged and installation space is reduced
Solution Approach 1:
The venting device is merged with the housing structure by forming the venting channel directly within the housing material. The housing includes a wall with a venting channel that extends from the interior to the exterior surface, integrating the venting function into the existing housing rather than adding a separate external component.
2Reliability
If a venting element is fixedly attached to the container, then venting function is provided, but the installation may cause damage or be subjected to damage
Solution Approach 1:
The venting channel is formed as an integral part of the housing structure, eliminating separate attachment points that could become failure points. The venting function is embedded within the housing material itself, ensuring structural continuity and strength.
Solution Approach 2:
The venting channel acts as an intermediary pathway that allows pressure equalization without requiring external attachment elements. It provides a controlled internal route for air flow that protects the housing structure from external mechanical stresses.
3Object-affected harmful factors
If a labyrinthine venting element is used, then foreign bodies are prevented from entering, but cleaning becomes difficult or impossible
Solution Approach 1:
The venting channel is designed with a simple, open structure that can be easily accessed and cleaned. Rather than using a complex labyrinthine design, the channel provides a direct pathway that allows for straightforward maintenance and cleaning operations.
4Object-affected harmful factors
If the storage space is closed during pumping, then lubricant containment is improved, but under-pressure forms during operation
Solution Approach 1:
The venting channel serves as an intermediary that allows air to enter or leave the storage space while preventing lubricant leakage. It provides a controlled pathway for pressure equalization that maintains lubricant containment while avoiding under-pressure conditions during pumping operations.
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 ensures effective pressure compensation, prevents damage, and maintains hygiene by allowing air exchange and lubricant discharge without external venting elements, ensuring the housing remains functional and clean.
Implementation Method 1
at least one first opening is provided in the storage space side wall, which first opening fluidically connects the storage space of the housing to the first intermediate space
Implementation Method 2
They are generally embodied such that a labyrinthine design prevents foreign bodies or moisture from outside from entering the container... the storage space must be vented above the lubricant level and inside the storage space or above the follower plate, since otherwise with the pump operating and the lubricant level decreasing an under-pressure would form
Implementation Method 3
in order to avoid forming an under- or over-pressure during emptying or filling of the reservoir, venting elements are usually provided that connect the lubricant reservoir to an external environment
Data Source
AI summary
A housing for a lubricant supply device for supplying a consumer with a lubricant includes a storage space for the viscous medium and a pump space configured to contain a conveying pump for pumping the viscous medium from the storage space to a medium outlet. The storage space is at least partially defined by a side wall, a base wall and a cover wall, and the supply device also includes an outer wall overlying a portion of the storage space side wall and defining with the storage space side wall a first intermediate space. The storage space side wall includes a first opening providing fluid communication between the storage space and the intermediate space.