IP Library Granted Patent US 8,360,921
Granted Patent B2
US 8,360,921 · App. 13/410,364 · Granted Jan 29, 2013

Differential

Inventors: Eva-Maria Finkenzeller (Gengenbach, DE); Renald Kuempel (Herpf, DE); Kathrin Fuchs (Steinach, DE)
Assignee: Neumayer Tekfor Holding GmbH
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Quick Facts
Patent No.
US 8,360,921
App. No.
13/410,364
Granted
Jan 29, 2013
Kind
B2
Abstract

A differential, having at least one drive gear, at least two axle gears, at least one compensating gear, and at least one connector element, in which the connector element is subjected to at least one first torque from the drive gear and transmits at least one second torque to at least one of the at least two axle gears. The drive gear is constructed in such a manner that the drive gear at least partially encloses at least one interior space, and the connector element is arranged at least partially inside the interior space enclosed at least partially by the drive gear.

Claims (25)

1. A differential comprising at least one drive gear, at least two axle gears, at least one compensating gear, and at least one connector element, wherein

the connector element receives at least one first torque at least from the drive gear and transmits at least one second torque to at least one of the at least two axle gears;

the drive gear is constructed in such a manner that the drive gear at least partially encloses at least one interior space;

the connector element is arranged at least partially inside the interior space which is at least partially enclosed by the drive gear;

the connector element comprises at least two axle gear pins, and a respective one of the at least two axle gears is arranged to rotate about each of these axle gear pins;

the at least two axle gear pins are arranged along a first imaginary axis of the connector element;

the connector element has at least one compensating gear pin, and the at least one compensating gear is arranged rotatably about this compensating gear pin;

the compensating gear pins are arranged along a second imaginary axis of the connector element, which second imaginary axis of the connector element is substantially perpendicular to the first imaginary axis of the connector element;

the connector element comprises at least one central region, and the at least two axle gear pins and the at least one compensating gear pin extend from this central region in a radiating pattern;

the at least one compensating pin is at least partially, indirectly or directly, connected to an inner surface of the drive gear,

the drive gear is constructed substantially in the manner of a toothed wheel,

at least one backing is arranged along the at least one compensating gear pin, at least on the side of the compensating gear which faces away from the central region,

the backing is provided with at least one recess having at least one open end, and said recess is constructed and arranged in such a manner that the recess proceeds from the open end and opens on at least one edge of the fixing region where the at least one compensating gear pin is at least partially connected to the inner surface of the drive gear, and

the at least one recess of the backing is on an end face of the backing facing away from the central region.

2. A differential according to claim 1 , wherein the connector element is constructed as a single piece.

3. A differential according to claim 1 , wherein the central region of the connector element is arranged to be substantially symmetrical about the center of gravity of the drive gear.

4. A differential according to claim 1 , wherein:

at least one axle gear is constructed substantially as a bevel gear, and

at least one compensating gear is constructed substantially as a bevel gear.

5. A differential according to claim 1 , wherein

at least one axle gear is constructed substantially as a crown gear, and

at least one compensating gear is constructed substantially as a spur gear.

6. A differential according to claim 1 , wherein

at least one axle gear is constructed substantially as a spur gear, and

at least one compensating gear is constructed substantially as a crown gear.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2019
From: NEUMAYER TEKFOR HOLDING GMBH
To: NEUMAYER TEKFOR ENGINEERING GMBH
Reel/Frame 048709/0675 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 11, 2012
From: FINKENZELLER, EVA-MARIA; KUEMPEL, RENALD; FUCHS, KATHRIN
To: NEUMAYER TEKFOR HOLDING GMBH
Reel/Frame 028023/0880 →
Priority Claims (2)
DE 10 2009 039 753 · Sep 2, 2009 · national
DE 10 2009 055 867 · Nov 26, 2009 · national
Continuity (2)
Continuation PCTDE2010000938 · Aug 6, 2010
Related Publication 20120190494A1 · Jul 26, 2012