IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0840565
(2010-07-21)
|
등록번호 |
US-8556577
(2013-10-15)
|
발명자
/ 주소 |
- Bell, Melissa A.
- Rollins, Michael J.
|
출원인 / 주소 |
- Hamilton Sundstrand Corporation
|
대리인 / 주소 |
Carlson, Gaskey & Olds, PC
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
15 |
초록
▼
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 se
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.
대표청구항
▼
1. 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 hou
1. 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; anda bearing mounted at each of two axial sides of said at least one rotor, and said bearings also received within said housing. 2. The lube pump as set forth in claim 1, wherein said first bolt holes are countersunk on a face of said flange facing away from a face that abuts said retention plate. 3. The lube pump as set forth in claim 1, wherein a spring biases internal components of said pump, including said at least one rotor, towards said retention plate. 4. The lube pump as set forth in claim 1, wherein there are at least three of said first bolt holes, and at least two of said second bolt holes. 5. The lube pump as set forth in claim 4, wherein said first bolt holes, and said second bolt holes, are all formed in ears extending further outwardly from a central axis of said flange than intermediate sections of said flange circumferentially positioned about said central axis, and between said ears. 6. The lube pump as set forth in claim 5, wherein there are at least four of said ears, with at least one of said ears including one of said first bolt holes, and one of said second bolt holes. 7. The lube pump as set forth in claim 6, wherein said at least one of said ears includes two sub-ears extending further radially outwardly than does an intermediate part of said at least one ear positioned circumferentially between said one of said first bolt holes, and said one of said second bolt holes. 8. The lube pump as set forth in claim 7, wherein said retention plate includes generally cylindrical nominal outer peripheral intermediate portions spaced at a first radius from said central axis, and third bolt holes, aligned with said first bolt holes, and formed in said retention plate at enlarged portions which extend radially outwardly for a greater distance than do said intermediate portions of said retention plate. 9. The lube pump as set forth in claim 8, wherein a ratio of a radius to said intermediate portions, compared to a radius extending from said central axis of a center of said bolt holes is between 0.63 and 0.77. 10. The lube pump as set forth in claim 1, wherein said second set of bolts may be removed, with said first set of bolts still securing said flange to said retention plate, and such that said retention plate and said lube pump housing can be removed as an assembled unit from the gearbox. 11. 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; andthe first and second set of bolts extending in opposed directions. 12. The gearbox as set forth in claim 11, wherein said first bolt holes are countersunk on a face of said flange facing away from a face that abuts said retention plate. 13. The gearbox as set forth in claim 11, wherein a spring biases internal components of said pump, including said rotor, towards said retention plate. 14. The gear box as set forth in claim 11, wherein there are at least three of said first bolt holes, and at least two of said second holes, said first bolt holes, and said second bolt holes, are all formed in ears extending further outwardly from a central axis of said flange than intermediate sections of said flange circumferentially positioned about said central axis, and between said ears. 15. The gear box as set forth in claim 14, wherein there are at least four of said ears, with at least one of said ears including one of said first bolt holes, and one of said second bolt holes. 16. The gear box as set forth in claim 15, wherein said at least one of said ears includes two sub-ears extending further radially outwardly than does an intermediate part of said at least one ear positioned circumferentially between said one of said first bolt holes, and said one of said second bolt holes. 17. The gear box as set forth in claim 16, wherein said retention plate has generally cylindrical nominal outer peripheral intermediate portions spaced at a first radius from said central axis, and third bolt holes aligned with said first bolt holes, and formed in said retention plate at enlarged portions which extend radially outwardly for a greater distance than do said intermediate portions of said retention plate. 18. The gear box as set forth in claim 17, wherein a ratio of a radius to said intermediate portions, compared to a radius extending from said central axis of a center of said bolt holes is between 0.63 and 0.77. 19. The gear box as set forth in claim 11, wherein there is a bearing mounted at each of two axial sides of said at least one rotor, and said bearing also received within said housing. 20. The gear box as set forth in claim 11, wherein said second set of bolts may be removed, with said first set of bolts still securing said flange to said retention plate, and such that said retention plate and said lube pump housing can be removed as an assembled unit from said gear train housing.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.