Patent · US Active

Spur gear differential

US8480532B2 · kind B2 · utility

11Cited by

2References

15Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Thorsten Biermann · Wachenroth, DE
Bernd-Robert Hohn · Kösching, DE
Franz Kurth · Nuremberg, DE

Key dates

Filing date	Jun 24, 2010
Grant date	Jul 9, 2013
Priority date	—
Expiry date	Jan 26, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2055/0893
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A spur gear differential (1) having a first sun (3) and a second sun (5), wherein the first sun (3) is associated with a first set of planetary gears (7) and the second sun (5) is associated with a second set of planetary gears (9), and the first set of planetary gears (7) engages with the second set of planetary gears (9). The number of teeth (11) of the first sun (3) are equal to the number of teeth (12) of the second sun (5), and the teeth (11) of the first sun (3) are disposed by a profile shift on a crown circle (2) having a crown circle diameter (DK1) that differs from the crown circle diameter (DK2) of a crown circle on which the teeth (12) of the second sun (5) are disposed. The first set of planetary gears (7) engages only with the first sun (3) and the second set of planetary gears (9) engages only with the second sun (5).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.