Hydraulic Motor Mounting Flange Layout for Higher Torque
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a tradeoff between improved cooling efficiency for engine cooling systems and the cost and/or size of hydraulic motors and pumps, with limited space in engine compartments and high costs associated with larger components.
Innovation Solution
A hydraulic pump or motor with a mounting configuration that includes a shaft, a housing with a cavity, and a mounting flange with bolt receiving slots and a pilot projection, allowing for increased torque transmission while maintaining a compact size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a larger hydraulic motor and/or pump is employed to increase cooling efficiency, then the fan can run faster and move more air through the radiator, but the device size and cost increase
Solution Approach 1:
The patent changes the mounting parameters of the hydraulic motor, specifically the bolt receiving slot configuration and pilot projection dimensions, to increase torque transmission capability. This allows the same-sized motor to deliver higher torque (over 500 N/m), thereby improving cooling efficiency without increasing motor volume.
2Productivity
If a larger hydraulic motor and/or pump is employed to increase cooling efficiency, then the fan can run faster and move more air through the radiator, but the cost increases
Solution Approach 1:
The patent modifies mounting parameters (bolt receiving slot spacing, pilot projection diameter) to enable higher torque output from the existing motor size. This parameter optimization allows the motor to achieve over 500 N/m torque without requiring a larger, more expensive motor unit, thus improving cooling efficiency while controlling manufacturing costs.
3Productivity
If a larger hydraulic motor and/or pump is employed to increase cooling efficiency, then the fan can run faster, but the available space in the engine compartment is limited
Solution Approach 1:
The patent optimizes the mounting flange parameters including bolt receiving slot configuration and pilot projection dimensions to maximize torque transmission (over 500 N/m) from a compact motor. This allows the motor to deliver higher performance without increasing its physical footprint, preserving engine compartment space while improving cooling efficiency.
Data Source
AI summary
A hydraulic pump or motor includes a mounting flange that is disposed at the first end of the housing. The mounting flange defines a pair of bolt receiving slots that are disposed along the X-axis on either side of the shaft. The pair of bolt receiving slots each define a radius center that are spaced away from each other a X dimension, and a pilot projection extends longitudinally away from the mounting flange, defining a pilot projection diameter. A ratio of the X dimension to the pilot projection diameter ranges from 1.1 to 1.5.