Apparatus and method for controlling angular relation between tw

Details Apparatus and method for controlling angular relation between tw Apparatus and method for controlling angular relation between tw

1999-02-17

2000-07-25

Denion, Thomas

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

74395, 74447, 744247, F01C 116

Patent

active

060930098

ABSTRACT:
The timing gear device or structure (26) has a pair of timing gears (28, 30) mounted on parallel rotating shafts (22, 24). Each timing gear (28, 30) has an outer gear portion (32) and a concentric interfitting inner gear portion (34). Outer gear portions (34) have teeth (48) which intermesh to transmit torque from drive shaft (22) to driven shaft (24). Each concentric inner gear portion (34) has longitudinally extending splines (44) in meshing relation with splines (46) on the inner periphery of outer gear portion (32). As shown in particular in FIGS. 5-8, the timing gears can be replaced by timing structure (26) by angular alignment or indexing of driven shaft (24) with inner gear portion (34) secured thereto while outer concentric gear portion (32) is removed. For indexing, drive shaft (22) is fixed and timing gear (28) is mounted thereon by key (40). After indexing driven shaft (24) at a precise angular relation to drive shaft (22), outer concentric gear portion (32) for shaft (24) is slipped over inner gear portion (34) as shown particularly in FIG. 5 with splines (44) on inner gear portion (34) intermeshing with splines 46 on outer gear portion (32).

REFERENCES:
patent: 601990 (1898-04-01), Suter
patent: 1578983 (1926-03-01), Gossett
patent: 2932207 (1960-04-01), Whitney
patent: 3168836 (1965-02-01), Militana
patent: 3501973 (1970-03-01), Casale
patent: 3541871 (1970-11-01), Burrell
patent: 4286476 (1981-09-01), Stiff
patent: 5181432 (1993-01-01), Allen
Sier-Bath Twin Screw Pumps Instruction Manual, Worthington Dresser, pp. 1-28, 2166-E1-8606, Worthington Pump Division, Brantford, Ontario, Canada.

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