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US 2013/0228029 A1Published application
Scissors gear assembly
AssigneeCaterpillar Inc.
InventorsBrian J. Murphy, Anthony K. Chan, Michael P. Harmon
Life of this patent
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Abstract
A gear assembly including a main gear including a first hub, a first gear ring positioned about the first hub, and a first helically splined region. The gear assembly further includes a sub-gear co-axially disposed relative to the main gear with a resilient member disposed therebetween. The sub-gear including a second hub, a second gear ring positioned about the second hub, and a second helically splined region complementary to the first helically splined region.
Claims20
A gear assembly comprising:
- a main gear including a first hub, a first gear ring positioned about the first hub, and a first helically splined region;
- a sub-gear co-axially disposed relative to the main gear, the sub-gear including a second hub, a second gear ring positioned about the second hub, and a second helically splined region complementary to the first helically splined region;
- and
- a resilient member axially disposed between the main gear and the sub-gear.
1 more element
A gear train for an engine system comprising:
- a drive gear;
- an idler gear coupled to the drive gear;
- and
- a gear assembly rotatably coupled with the drive gear via the idler gear, the gear assembly comprising:
- a main gear including a first hub, a first gear ring positioned about the first hub, and a first helically splined region;
- a sub-gear co-axially disposed relative to the main gear, the sub-gear including a second hub, a second gear ring positioned about the second hub, and a second helically splined region complementary to the first helically splined region;
- and
- a resilient member axially disposed between the main gear and the sub-gear.
5 more elements
An engine system comprising:
- an engine having a crankshaft, and a camshaft;
- and
- a gear train associated with the engine, the gear train comprising:
- a drive gear coupled with the crankshaft of the engine;
- an idler gear coupled to the drive gear;
- and
- a gear assembly coupled to the camshaft of the engine and rotatably coupled with the drive gear via the idler gear, the gear assembly comprising:
- a main gear including a first hub, a first gear ring positioned about the first hub, and a first helically splined region;
- a sub-gear co-axially disposed relative to the main gear,
- the sub-gear including a second hub, a second gear ring positioned about the second hub, and a second helically splined region complementary to the first helically splined region;
- and
- a resilient member axially disposed between the main gear and the sub-gear.
9 more elements
Dependencies are inferred from the claim text.