Gear pump with improved pinion mounting

Details Gear pump with improved pinion mounting Gear pump with improved pinion mounting

1986-09-02

1988-03-01

Croyle, Carlton R.

Rotary expansible chamber devices

Multistage

Interengaging rotary members

418200, 418206, 403248, F04C 1802

Patent

active

047282711

ABSTRACT:
A two-stage gear pump with two gear sets each having a pinion telescoped onto a slotted drive shaft with a press fit and also positively keyed to the shaft. One key in the slot of the shaft includes radial ears establishing a positive coupling between the shaft and one of the pinions and also includes cantilevered spring fingers which enhance the press fit between the shaft and the other pinion.

REFERENCES:
patent: 1439769 (1922-12-01), Smith
patent: 1689673 (1928-10-01), Lalor
patent: 3056618 (1962-10-01), Andersen
patent: 3378285 (1968-04-01), Staley
patent: 4171939 (1979-10-01), Harwath
patent: 4391580 (1983-07-01), Hunsberger et al.
Engineering Drawing Identified by the Date Stamp "Michael C. Payden, Dec. 16, 1986".

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