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US 6,582,338 B1Granted
Differential unit with worm gearsets
AssigneeNew Venture Gear, Inc.
InventorYakov Fleytman
Life of this patent
Estimating the term…
Abstract
A worm differential gear mechanism is provided utilizing a double enveloping worm/worm gear transmission. The double enveloping worm/worm gear transmission has an increased torque capacity in comparison with standard worm differential gear mechanisms.
Claims8
A worm differential, comprising:
- a differential case;
- first and second axle shafts rotatably supported by said differential case;
- a first enveloping worm gear mounted to said first axle shaft and a second enveloping worm gear mounted to said second axle shaft;
- a first compound gear rotatably supported by said differential case and having a first enveloping worm and a first gear, said first enveloping worm being meshed with said first enveloping worm gear;
- and
- a second compound gear rotatably supported by said differential case and having a second enveloping worm meshed with said second enveloping worm gear and a second gear meshed with said first gear;
- and
- further comprising a pair of said first compound gears and a pair of said second compound gears, said first compound gears being aligned perpendicular to said second compound gears.
5 more elements
A worm differential, comprising:
- a differential case;
- first and second axle shafts rotatably supported by said differential case;
- a first enveloping worm gear mounted to said first axle shaft and a second enveloping worm gear mounted to said second axle shaft;
- a first compound gear rotatably supported by said differential case and having a first enveloping worm and a first gear, said first enveloping worm being meshed with said first enveloping worm gear;
- and
- a second compound gear rotatably supported by said differential case and having a second enveloping worm meshed with said second enveloping worm gear and a second gear meshed with said first gear;
- and
- wherein said first gear and said second gear are bevel gears.
5 more elements
A worm differential, comprising:
- a differential case;
- first and second axle shafts rotatably supported by said differential case;
- a first worm gear mounted to said first axle shaft and a second worm gear mounted to said second axle shaft;
- a pair of first compound gears rotatably supported by said differential case and each having a first worm and a first gear, said first worm of said pair of first compound gears being meshed with said first worm gear;
- a pair of second compound gears rotatably supported by said differential case and each having a second worm meshed with said second worm gear and a second gear meshed with one of said first gears of said pair of first compound gears;
- and
- said first compound gears being aligned perpendicular to said second compound gears.
4 more elements
A worm differential, comprising:
- a differential case;
- first and second axle shafts rotatably supported by said differential case;
- a first worm gear mounted to said first axle shaft and a second worm gear mounted to said second axle shaft;
- a first compound gear rotatably supported by said differential case and having a first worm and a first bevel gear, said first worm being meshed with said first worm gear;
- a second compound gear rotatably supported by said differential case and having a second worm meshed with said second worm gear and a second bevel gear meshed with said first bevel gear.
2 more elements
Dependencies are inferred from the claim text.