Prime mover systems with a power take-off system and a transmission
AssigneeCummins Inc.
InventorDavid J. Langenderfer
Life of this patent
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Abstract
A prime mover system includes a first prime mover, a first drive shaft, a differential, a power take-off (PTO) drive shaft, a second drive shaft, a transmission, a first accessory, and an output shaft. The first drive shaft is operatively coupled to the first prime mover. The differential is coupled to the first drive shaft. The PTO drive shaft is coupled to the differential. The second drive shaft is coupled to the differential. The transmission is coupled to the second drive shaft. The first accessory is operatively coupled to the PTO drive shaft. The output shaft is coupled to the transmission. The transmission is configured to transfer rotation of the second drive shaft to the output shaft. Rotation of the PTO drive shaft is independent of rotation of the output shaft.
Claims17
A prime mover system comprising:
- a first prime mover;
- a first prime mover drive shaft coupled to the first prime mover;
- a second prime mover;
- a second prime mover drive shaft coupled to the second prime mover;
- a first differential coupled to the first prime mover drive shaft and the second prime mover drive shaft between the first prime mover drive shaft and the second prime mover drive shaft;
- a first drive shaft coupled to the first differential;
- a second differential coupled to the first drive shaft;
- a power take-off (PTO) drive shaft coupled to the second differential;
- a second drive shaft coupled to the second differential;
- a transmission coupled to the second drive shaft;
- a first accessory operatively coupled to the PTO drive shaft;
- and
- an output shaft coupled to the transmission;
- wherein the transmission is configured to transfer rotation of the second drive shaft to the output shaft;
- and
- wherein rotation of the PTO drive shaft is independent of rotation of the output shaft.
A prime mover system configured to drive a first accessory and a second accessory, the prime mover system comprising:
- a first prime mover;
- a second prime mover;
- a first drive shaft operatively coupled to the first prime mover and the second prime mover;
- a power take-off (PTO) drive shaft operatively coupled to the first drive shaft;
- a transmission operatively coupled to the first drive shaft;
- a first PTO transmission member coupled to the PTO drive shaft and configured to drive the first accessory;
- an output shaft coupled to the transmission;
- and
- a second PTO transmission member coupled to the PTO drive shaft and configured to drive the second accessory;
- wherein the transmission is configured to selectively transfer rotation of the first drive shaft to the output shaft;
- and
- wherein rotation of the PTO drive shaft is independent of rotation of the output shaft.
A prime mover system configured to drive a first accessory and a second accessory, the prime mover system comprising:
- a first prime mover;
- a second prime mover;
- a first prime mover drive shaft operatively coupled to the first prime mover;
- a second prime mover drive shaft operatively coupled to the second prime mover;
- a first drive shaft;
- a first differential coupled to the first drive shaft, the first prime mover drive shaft, and the second prime mover drive shaft, the first differential configured to transfer to the first drive shaft rotation of at least one of:
- (i) the first prime mover drive shaft or (ii) the second prime mover drive shaft;
- a power take-off (PTO) drive shaft;
- a second differential coupled to the first drive shaft and the PTO drive shaft, the second differential configured to transfer rotation of the first drive shaft to the PTO drive shaft;
- a first PTO transmission member coupled to the PTO drive shaft and configured to drive the first accessory;
- and
- a second PTO transmission member coupled to the PTO drive shaft and configured to drive the second accessory;
- wherein the PTO drive shaft, the first PTO transmission member, and the second PTO transmission member are configured such that rotation of the PTO drive shaft causes simultaneous rotation of the first PTO transmission member and the second PTO transmission member.
A prime mover system configured to drive a first accessory and a second accessory, the prime mover system comprising:
- a first prime mover;
- a first drive shaft operatively coupled to the first prime mover;
- a power take-off (PTO) drive shaft operatively coupled to the first drive shaft;
- a transmission operatively coupled to the first drive shaft;
- a first PTO transmission member coupled to the PTO drive shaft and configured to drive the first accessory;
- an output shaft coupled to the transmission;
- a first accessory transmission member coupled to the first PTO transmission member and coupling the first PTO transmission member to the first accessory;
- a second PTO transmission member coupled to the PTO drive shaft and configured to drive the second accessory;
- and
- a second accessory transmission member coupled to the second PTO transmission member and coupling the second PTO transmission member to the second accessory;
- wherein the transmission is configured to selectively transfer rotation of the first drive shaft to the output shaft;
- wherein rotation of the PTO drive shaft is independent of rotation of the output shaft;
- wherein the first PTO transmission member and the first accessory transmission member are defined by a first ratio;
- and
- wherein the second PTO transmission member and the second accessory transmission member are defined by a second ratio different from the first ratio.
Dependencies are inferred from the claim text.