Lubrication Pump Diagnostics for Cold-Viscosity Distribution
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Solution Overview
Problem
Existing automatic lubrication systems lack a simplified pump design that can be used with a wide variety of lubricant distribution systems and face challenges in efficiently pumping lubricant, especially in colder conditions where lubricant viscosity increases.
Innovation Solution
A pump apparatus with a cylinder and piston mechanism, including a check valve and vent passage, driven by a linear position drive mechanism, which also incorporates a stirrer to maintain lubricant viscosity and a controller for calibrating and controlling the operation, allowing for efficient lubricant distribution across different system types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional pump design is used in automatic lubrication systems, then the system can pump lubricant, but the design is complex and not compatible with a wide variety of distribution systems
Solution Approach 1:
The pump assembly is designed with a universal interface that can be adapted to work with multiple types of lubricant distribution systems (progressive valve systems, injector systems, dual-line systems) through a standardized mounting configuration and interchangeable components
Solution Approach 2:
The pump assembly is divided into separate functional components (motor, pump body, piston assembly, valve system) that can be independently selected or replaced to match different distribution system requirements, reducing overall complexity while maintaining versatility
2Productivity
If lubricant is pumped in cold conditions, then lubricant distribution can be maintained, but viscosity increases and pumping efficiency decreases
Solution Approach 1:
The pump system adjusts operational parameters such as pump speed, stroke length, and pressure settings based on detected lubricant viscosity conditions to maintain optimal pumping efficiency across varying temperature ranges
Solution Approach 2:
The system performs preliminary heating or viscosity reduction treatment to the lubricant before pumping begins in cold conditions, ensuring the lubricant reaches a pumpable state before the main distribution cycle starts
3Device complexity
If a simplified pump design is implemented, then device complexity is reduced, but diagnostic capabilities are limited
Solution Approach 1:
The pump assembly incorporates self-diagnostic sensors and monitoring systems that automatically detect and report operational status, lubricant flow conditions, and potential failures without requiring external diagnostic equipment or complex manual testing procedures
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 solution enables efficient lubricant distribution across various systems, maintains lubricant flowability even in cold conditions, and includes self-diagnostic capabilities to ensure proper system operation and lubricant quality.
Implementation Method 1
a check valve in the cylinder bore between the piston and the cylinder outlet for blocking backflow through the outlet
Implementation Method 2
a vent passage communicating with the cylinder bore at a location upstream from the check valve for venting the lubricant distribution system
Implementation Method 3
a piston movable in the cylinder bore... a linear position drive mechanism for moving the piston in a forward direction in the cylinder bore through a pumping stroke for pumping lubricant through the cylinder outlet to the lubricant distribution system
Implementation Method 4
a controller for calibrating and controlling the operation of the linear position drive mechanism
Data Source
AI summary
Apparatus and method for supplying lubricant to a plurality of lubrication sites. Embodiments include a pump with venting and non-venting piston return, a pump with stirrer and direct feed mechanism, a pump with CAN system and self-diagnostics, a pump with heated housing and reservoir, a pump with stepper motor and overdrive control and a pump able to be used with a plurality of different types or of lubrication systems.