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US 8,556,577 B2Granted
Lube pump retention method
AssigneeHamilton Sundstrand Corporation
InventorsMelissa A. Bell, Michael J. Rollins
Life of this patent
Estimating the term…
Abstract
A lube pump has a housing with a flange extending radially outwardly from a body of the housing. At least one rotor is received within the housing, and a shaft for powering the rotor extends away from the flange. A retention plate is positioned on an end of the flange closing the housing. A first set of bolts secure the flange to the retention plate. A second set of bolts secure the flange to the gearbox. The two sets of bolts extend in opposed directions. A gearbox including such a lube pump is also disclosed and claimed.
Claims20
A lube pump comprising:
- a housing including a flange extending radially outwardly from a body of said housing;
- at least one rotor received within said housing, and a shaft for powering said rotor extending away from said flange;
- a retention plate positioned on an end of said flange closing said housing, said flange including first bolt holes for securing said flange to said retention plate, and second bolt holes for securing said flange to a gearbox;
- a first set of bolts extending through said first bolt holes and securing said flange to said retention plate;
- a second set of bolts for securing said flange to the gear box;
- the first and second set of bolts extending in opposed directions;
- and
- a bearing mounted at each of two axial sides of said at least one rotor, and said bearings also received within said housing.
5 more elements
A gear box comprising:
- a gear train enclosed within a gear train housing;
- a drive gear, said drive gear driving a drive shaft of a lube pump, and the lube pump including a lube pump housing having a flange extending radially outwardly from a body of said lube pump housing;
- at least one pump rotor received within said lube pump housing;
- a retention plate positioned on an end of said flange closing said lube pump housing;
- a first set of bolts extending through first bolt holes in said flange and securing said flange to said retention plate;
- a second set of bolts extending through second bolt holes in said flange and securing said flange to the gearbox housing, said second set of bolts further securing said retention plate to said gearbox housing;
- and
- the first and second set of bolts extending in opposed directions.
5 more elements
Dependencies are inferred from the claim text.