Transmission with low shaft deflection

Details Transmission with low shaft deflection Transmission with low shaft deflection

2007-08-14

2007-08-14

Le, David D. (Department: 3681)

Machine element or mechanism

Gearing

Interchangeably locked

C074S329000, C074S333000

Reexamination Certificate

active

10946519

ABSTRACT:
A transmission (1) having at least one transmission input shaft (4), at least one countershaft (5), one reverse gear shaft (30) and at last one transmission output shaft (6) in which, upon at least one transmission input shaft and at least one countershaft, idler gears designed as helical-cut spur gears are supported and fixed gears are fastened which forming gear pairs are in tooth contact with each other, and having shifting sets (32, 33, 34, 35) situated on the transmission input shaft and the countershaft. To implement a low shaft deflection, it is posed that the helix angles (39, 40, 42, 43) of the toothings of gear wheels (21, 22, 24, 25) driving the countershaft and the helix angle (41) of the driven gear wheel (23) on the countershaft be selected so that the toothing forces and bending torques resulting therefrom which act on the countershaft dissolve at least partly in relation to the shaft.

REFERENCES:
patent: 2320757 (1943-06-01), Sinclair et al.
patent: 5421216 (1995-06-01), Stine
patent: 6164149 (2000-12-01), Ohmori et al.
patent: 6205879 (2001-03-01), Litvin et al.
patent: 6427550 (2002-08-01), Bowen
patent: 6766705 (2004-07-01), Hall, III
patent: 6883394 (2005-04-01), Koenig et al.
patent: 2004/0093972 (2004-05-01), Gumpoltsberger et al.
patent: 3822330 (1989-07-01), None
patent: 102 53 259 (2004-05-01), None

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