Machine element or mechanism – Gearing – Lubrication
Patent
1994-12-29
1996-08-13
Herrmann, Allan D.
Machine element or mechanism
Gearing
Lubrication
184 612, 418171, F16H 5704, F16N 738, F16C 110
Patent
active
055445403
ABSTRACT:
An improved system for lubricating the gears and bearings in a vehicle transmission is provided including an improved gerotor pump mounted on the interior of the transmission housing. The gerotor pump includes an inner pump element and an outer pump element. One end of the outer element is provided with a radially inwardly extending portion which extends over the end of the inner element. This end of the outer element also includes a radially outwardly extending toothed portion which meshes with and is driven by one of the countershaft gears of the transmission. The inner and outer elements are both piloted on a flanged nut and pilot pin assembly which is secured to an interior wall of the transmission housing by a threaded stud. The gerotor pump of the invention thus eliminates the need for a pump housing and permits the use of a higher displacement set of gerotor elements in a given amount of space. In addition, by driving the outer element rather than the inner element, a higher pump speed and increased pump flow are achieved.
REFERENCES:
patent: 3407741 (1968-10-01), Weber et al.
patent: 4185717 (1980-01-01), Ford, Jr. et al.
patent: 4329887 (1982-05-01), Kawamoto
International Warranty Coverage brochure (undated) (prior Dec. 29, 1994).
Eaton Fuller RTLO 16618 Series Illustrated Parts List (Sep. 1992).
Eaton Truck Components Bulletin Trans IB-212 (Dec. 1993).
T. Roeber sketch dated Nov. 10, 1993.
Dana Corporation
Herrmann Allan D.
LandOfFree
Gerotor pump for vehicle transmission lubrication system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gerotor pump for vehicle transmission lubrication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gerotor pump for vehicle transmission lubrication system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1040760