US 12,110,960 B2
Work vehicle drive with solenoid boosted lubrication pump
Randall L. Long, Coffeyville, KS (US); Stacy K. Worley, Coffeyville, KS (US); and Cayle D. Harmon-Moore, Independence, KS (US)
Assigned to DEERE & COMPANY, Moline, IL (US)
Filed by Deere & Company, Moline, IL (US)
Filed on Mar. 9, 2022, as Appl. No. 17/654,128.
Prior Publication US 2023/0304570 A1, Sep. 28, 2023
Int. Cl. F16H 57/04 (2010.01); F04B 43/04 (2006.01); F16H 57/02 (2012.01)
CPC F16H 57/0436 (2013.01) [F04B 43/04 (2013.01); F16H 57/0412 (2013.01); F16H 57/0439 (2013.01); F16H 57/0476 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02056 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A work vehicle drive, comprising:
a housing;
an electric machine at least partially housed within the housing, configured to generate rotational power, and comprising an interface coupling at an electric machine output;
a transmission at least partially housed within the housing, rotationally coupled to the interface coupling, and configured to transfer at least a portion of the mechanical power from the electric machine to a drive output;
a pump having a diaphragm and at least partially housed within the housing and configured to facilitate circulation of lubrication fluid about the transmission, wherein the pump is selectively driven, in a first mode of operation, by the rotational power of the electric machine; and
a solenoid device at least partially housed within the housing and configured to selectively drive the pump in a second mode of operation.