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Title: Speed forward, 12 speed reverse powershift transmission

Abstract

This patent describes a transmission. It includes a housing; a first input shaft rotably mounted in the housing and having at least one end adapted to receive input motive power; a first gear fixed for rotation with the first shaft; a second shaft rotatably mounted in the housing adjacent to the first shaft; second and third gears rotatably mounted about the second shaft and a fourth gear fixed for rotation with the second shaft; the second gear meshing continuously with the first gear; first and second clutches mounted about the second shaft and engagable with the second and third gears, respectively, to selectively fix the gears for rotation with the second shaft; a third shaft rotatably mounted in the housing adjacent to the first and second shafts; fifth, sixth and seventh gears rotatably mounted about the third shaft and an eighth gear fixed for rotation with the third shaft, the fifth gear meshing continuously with the first gear, the sixth gear meshing continuously with the third gear, and the eighth gear meshing continuously with the fourth gear; third and fourth clutches mounted about the third shaft, the third clutch being engagable with the fifth gear and the fourth clutch beingmore » engagable with the fifth gear and the fourth gears to selectively fix the gears for rotation with the third shaft; a fourth shaft rotatably mounted in the housing adjacent to the first and third shafts.« less

Inventors:
Publication Date:
OSTI Identifier:
5838555
Patent Number(s):
US 5063793; A
Application Number:
PPN: US 7-578705
Assignee:
Deere and Co., Moline, IL (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 6 Sep 1990
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; INTERNAL COMBUSTION ENGINES; MECHANICAL TRANSMISSIONS; DESIGN; SPEED REGULATORS; CONTROL EQUIPMENT; ENGINES; EQUIPMENT; HEAT ENGINES; MACHINE PARTS; 330100* - Internal Combustion Engines; 330602 - Vehicle Design Factors- Engine-Transmission Matching

Citation Formats

McAskill, J P. Speed forward, 12 speed reverse powershift transmission. United States: N. p., 1991. Web.
McAskill, J P. Speed forward, 12 speed reverse powershift transmission. United States.
McAskill, J P. Tue . "Speed forward, 12 speed reverse powershift transmission". United States.
@article{osti_5838555,
title = {Speed forward, 12 speed reverse powershift transmission},
author = {McAskill, J P},
abstractNote = {This patent describes a transmission. It includes a housing; a first input shaft rotably mounted in the housing and having at least one end adapted to receive input motive power; a first gear fixed for rotation with the first shaft; a second shaft rotatably mounted in the housing adjacent to the first shaft; second and third gears rotatably mounted about the second shaft and a fourth gear fixed for rotation with the second shaft; the second gear meshing continuously with the first gear; first and second clutches mounted about the second shaft and engagable with the second and third gears, respectively, to selectively fix the gears for rotation with the second shaft; a third shaft rotatably mounted in the housing adjacent to the first and second shafts; fifth, sixth and seventh gears rotatably mounted about the third shaft and an eighth gear fixed for rotation with the third shaft, the fifth gear meshing continuously with the first gear, the sixth gear meshing continuously with the third gear, and the eighth gear meshing continuously with the fourth gear; third and fourth clutches mounted about the third shaft, the third clutch being engagable with the fifth gear and the fourth clutch being engagable with the fifth gear and the fourth gears to selectively fix the gears for rotation with the third shaft; a fourth shaft rotatably mounted in the housing adjacent to the first and third shafts.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {11}
}