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US 8,262,530 B2Granted
Power-branched transmission
AssigneeZF Friedrichshafen AG
InventorsGerhard Bailly, Thomas Ratzmann, Walter Fischer, Jurgen Pohlenz
Life of this patent
Estimating the term…
Abstract
A power-branched transmission for an agricultural vehicle is configured as a power-branched transmission having a secondary coupling. The transmission comprises a summation planetary gear set (5), the planetary gear of which are configured as a double planetary gear (8).
Claims17
A power-branched transmission comprising:
- an input shaft (2) being driven by a drive motor (1),
- a summation planetary gear set (5) having only a single ring gear (8) and at least one sun gear (7, 21, 22),
- the summation planetary gear set (5) having a double planetary gear (6),
- an axis of rotation of the sun gear (7, 21, 22) being spaced from an axis of rotation of the input shaft (2),
- an infinitely adjustable variator (10) having a first shaft (9) and a second shaft (11),
- the first shaft (9) being connected, in a rotationally fixed manner, to the sun gear (7, 21) and the second shaft (11) being operatively connected to the ring gear (8) via a spur gear (12),
- the sun gear (7, 22) being connectable to an output shaft (16) via at least a first shift element (18), and
- the ring gear (8) being connectable to the output shaft (16) via direct connection to at least a second shift element (13).
5 more elements
A power-branched transmission comprising:
- an input shaft (2) being driven by a drive motor (1),
- a summation planetary gear set (5) having a ring gear (8) and at least one sun gear (7, 21, 22),
- the summation planetary gear set (5) having a double planetary gear (6),
- an axis of rotation of the sun gear (7, 21, 22) being spaced from an axis of rotation of the input shaft (2),
- an infinitely adjustable variator (10) having a first shaft (9) and a second shaft (11),
- the first shaft (9) being connected, in a rotationally fixed manner, to the sun gear (7, 21),
- the second shaft (11) being connected, in a rotationally fixed manner to a spur gear (12), and being operatively connected to the ring gear (8) via the spur gear (12),
- the sun gear (7, 22) being connectable to an output shaft (16) via at least a first shift element (18), and
- the ring gear (8) being connectable to the output shaft (16) via direct connection to at least a second shift element (13).
6 more elements
Dependencies are inferred from the claim text.