Synchronizing Ring Cam Grooves for Oil Circulation
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Solution Overview
Problem
In synchronizers for vehicle transmissions, the small gap between axial surfaces of cams and components can lead to oil being trapped and dried, causing lubrication issues due to inadequate oil circulation.
Innovation Solution
The synchronizing ring features axially extending cams with grooves on their axial surfaces to facilitate oil transportation, improving lubrication by creating channels for oil circulation between the outer and inner radial surfaces of the cams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a small gap is formed between the axial surfaces of the axial cams and the hub, then the packing space is reduced, but oil gets stuck in the gap and dried oil sticks on the component
Solution Approach 1:
The axial surface of each axial cam is provided with grooves that create a porous-like structure for oil transportation. These grooves allow oil to circulate through the cam structure, preventing oil from getting stuck in the gap between the cam and hub, thus maintaining reliable lubrication while keeping the packing space compact.
2Reliability
If grooves are added to the axial surface of each axial cam, then oil circulation is improved, but the device complexity increases
Solution Approach 1:
Instead of modifying the entire cam structure, grooves are added only to the axial surface of each axial cam where oil transportation is needed. This localized modification improves lubrication reliability without significantly increasing overall device complexity, as the grooves are integrated into the existing cam geometry.
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 grooves on the axial surfaces of the synchronizing ring enhance lubrication by ensuring effective oil circulation, reducing the likelihood of oil being stuck and improving the overall lubrication within the synchronizer.
Implementation Method 1
an axial surface of each axial cam is provided with at least one groove for transportation of oil
Data Source
AI summary
A synchronizing ring for a synchronizer of a transmission. The synchronizing ring is provided with a plurality of axially extending cams for engagement with a further synchronizing ring. An axial surface of each axial cam is provided with at least one groove for transportation of oil.