Lubrication system for a vehicle transmission
AssigneeGM Global Technology Operations LLC
InventorRoger TUOMAS
Life of this patent
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Abstract
A lubrication system is provided for a vehicle transmission having shaft bearings, gearwheel hub bearings, gear rings of interlocking gear shift gearwheel pairs, and rotationally-fixed, axially-displaceable mounts of synchronous clutch elements. The lubricant is kept in a loop, which is supported by gravity and lubricant guide components. For a first, a second, and a third lubrication area, a first, a second, and a third lubricant passage, respectively, are provided, having drip openings to the respective lubrication areas situated underneath. A crown wheel protrudes into a lower lubricant collection volume, and a lubricant guide channel extends from an outer circumference of the crown wheel to an upper lubricant collection volume
Claims12
A lubrication system for a vehicle transmission, comprising:
- a loop adapted to keep a lubricant that is supported by gravity;
- lubricant guide components adapted to further support the loop;
- a first lubricant passage for a first lubricant area;
- a second lubricant passage for a second lubricant area;
- a third lubricant passage for a third lubricant area;
- a first drip opening for the first lubricant passage situated underneath the first lubricant area;
- a second drip opening for the second lubricant passage situated underneath the second lubricant area;
- a third drip opening for the third lubricant passage situated underneath the third lubricant area;
- a crown wheel adapted to protrude into a lower collection volume for the lubricant;
- and
- a lubricant guide channel adapted to extend from an outer circumference of the crown wheel to an upper collection volume of the lubricant.
A motor vehicle transmission, comprising:
- shaft bearings;
- gearwheel hub bearings;
- gear rings of interlocking gear shift gearwheel pairs, and rotationally-fixed and axially-displaceable mounts of a synchronous clutch element;
- and
- a lubrication system for at least one of the shaft bearings, the gearwheel hub bearings, the gear rings of the interlocking gear shift gearwheel pairs, or the rotationally-fixed and axially-displaceable mounts of the synchronous clutch element, the lubrication system comprising:
- a loop adapted to keep a lubricant that is supported by gravity;
- lubricant guide components adapted to further support the loop;
- a first lubricant passage for a first lubricant area;
- a second lubricant passage for a second lubricant area;
- a third lubricant passage for a third lubricant area;
- a first drip opening for the first lubricant passage situated underneath the first lubricant area;
- a second drip opening for the second lubricant passage situated underneath the second lubricant area;
- a third drip opening for the third lubricant passage situated underneath the third lubricant area;
- a crown wheel adapted to protrude into a lower collection volume for the lubricant;
- and
- a lubricant guide channel adapted to extend from an outer circumference of the crown wheel to an upper collection volume of the lubricant.
Dependencies are inferred from the claim text.