Lubrication Pump Pressure Relief Cam Disk Integration
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Solution Overview
Problem
Existing feeding lubricating devices lack an efficient mechanism to initiate a relief phase for recirculating excess lubricant back to the reservoir after a pressure phase, which is essential for maintaining optimal lubrication and preventing excess lubricant accumulation.
Innovation Solution
Incorporating a pressure relief unit actuated by the drive member, such as a cam disk or rocker mechanism, that blocks and unblocks the return conduit between the lubricant conduit and reservoir, allowing for simple and reliable recirculation of excess lubricant during the relief phase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure relief means is added to enable recirculation of excess lubricant, then the reliability of lubrication system is improved, but the device complexity increases
Solution Approach 1:
The pressure relief means is integrated into the existing drive member (cam disk) that already actuates the pump elements. The cam disk is modified to include cam surfaces that directly control the pressure relief valve, eliminating the need for a separate actuating mechanism and reducing overall device complexity while maintaining improved reliability.
Solution Approach 2:
The drive member (cam disk) is designed to perform multiple functions: it actuates the pump elements during the pressure phase and simultaneously controls the pressure relief valve during the relief phase. This multi-functionality reduces the number of separate components needed, addressing the contradiction between reliability improvement and device complexity.
2Volume of moving object
If the pressure relief unit is integrated into the pump housing, then the device compactness is improved, but the manufacturing complexity increases
Solution Approach 1:
The pressure relief unit is housed within the existing pump housing, merging multiple functions (pump operation and pressure relief) into a single integrated assembly. This integration improves device compactness by eliminating the need for separate housings while the modular internal design maintains ease of manufacture.
Solution Approach 2:
The pump housing is designed with distinct chambers and passages that separate the pump element chamber from the pressure relief unit chamber. This segmentation allows for easier manufacturing and assembly while maintaining a compact overall structure, as each component can be manufactured independently and then assembled within the common 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 solution enables efficient recirculation of excess lubricant, utilizing existing device components, and ensures a compact construction by integrating the pump element and pressure relief unit within a common housing, effectively managing lubricant distribution and reducing waste.
Implementation Method 1
the pressure relief unit can be actuatable by a cam disk or a similar actuating element which is seated on the drive member such as the drive shaft
Implementation Method 2
the pressure relief unit includes a rocker mechanism actuatable by the actuating element
Implementation Method 3
the pressure relief unit includes an axially movable control piston which blocks the return conduit between the lubricant conduit and the lubricant reservoir in the pressure phase and unblocks the same in the subsequent relief phase
Implementation Method 4
means including an eccentric for generating at least one pump stroke of the at least one pump element
Data Source
AI summary
The invention relates to a feeding lubricating device comprising a lubricant reservoir (1), a lubricant pump (2) which is driven by a driving motor (16) and is provided with at least one pump element (3) for conveying lubricant to at least one lubrication point, especially at least one feeding distributor (5), via a lubricant conduit (4), a driving member such as a drive shaft, and optional means that are fitted with an eccentric attachment for generating at least one pump stroke of the at least one pump element (3). A pressure relief unit (8) which can also be actuated via the driving member blocks a backflow pipe (4) located between the lubricant conduit (4) and the lubricant reservoir (1) in a pressure phase while unblocking the same in a subsequent relief phase.