GB662147A - Lubricating mechanism for the intermediate or translational bearings of contra-rotating airscrews - Google Patents
Lubricating mechanism for the intermediate or translational bearings of contra-rotating airscrewsInfo
- Publication number
- GB662147A GB662147A GB52549A GB52549A GB662147A GB 662147 A GB662147 A GB 662147A GB 52549 A GB52549 A GB 52549A GB 52549 A GB52549 A GB 52549A GB 662147 A GB662147 A GB 662147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bearing
- pumps
- valves
- airscrews
- reservoir
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000001050 lubricating effect Effects 0.000 title abstract 3
- 239000003921 oil Substances 0.000 abstract 5
- 239000000314 lubricant Substances 0.000 abstract 4
- 239000010724 circulating oil Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Details Of Gearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
662,147. Force feed lubricating. DE HAVILLAND AIRCRAFT CO., Ltd. Feb. 7, 1950 [Jan. 7, 1949], No. 525/49. Class 12 (iii). Lubricating mechanism for an intermediate or translational bearing of contra-rotating airscrews comprises oil pumps 8 adapted to be driven continuously by relative rotation of the two airscrews for circulating oil through the bearing 4 and an oil reservoir 7 in communication with the pumps 8 and bearing 4 for supplying oil to the pumps and for receiving oil drained from the bearing, the supply of oil to the bearing being proportional to the speed of rotation of the airscrews. The bearing races are carried by inner and outer parts 5, 6 of a housing, the parts being in driving connection with the adjacent airscrews. The reservoir 7 is contained within the part 6 which also carries the pumps 8, inlet valves 12 and outlet valves 15. The pumps 8 are of the intermeshing gear-wheel type and have shaft connections to multi-start worms 10 in driven connection with a worm wheel 11 carried by the inner part 5 so that the pumps are driven at a speed proportional to the speed of rotation of the airscrews. The inlet and outlet valves 12, 15 are centrifugally opened and spring closed, the arrangement being such that the outlet valves 15 open at a lower speed than the inlet valves 12. One or more breather valves 18 which are also centrifugally opened and spring closed are provided. A removable plug 19 is fitted for topping up the reservoir with lubricant. In operation lubricant passes from the reservoir by way of valves 12 into passageways 13 to the pumps 8 from which it is pumped through passageways 14 to the bearing. From the bearing, lubricant passes through passageways 16 and through valves 15 back to the reservoir 7. In a modification pumps driven by worm and spur gearing deliver lubricant to the bearing from which it is centrifugally returned, the inlet and outlet valves being dispensed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB52549A GB662147A (en) | 1949-01-07 | 1949-01-07 | Lubricating mechanism for the intermediate or translational bearings of contra-rotating airscrews |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB52549A GB662147A (en) | 1949-01-07 | 1949-01-07 | Lubricating mechanism for the intermediate or translational bearings of contra-rotating airscrews |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB662147A true GB662147A (en) | 1951-12-05 |
Family
ID=9705890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB52549A Expired GB662147A (en) | 1949-01-07 | 1949-01-07 | Lubricating mechanism for the intermediate or translational bearings of contra-rotating airscrews |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB662147A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1477721A2 (en) * | 2003-05-13 | 2004-11-17 | Pfeiffer Vacuum GmbH | Device for lubricating the bearings of a rotating shaft |
| CN113639029A (en) * | 2021-08-16 | 2021-11-12 | 上海尚实能源科技有限公司 | Turboprop engine reduction box unit body |
-
1949
- 1949-01-07 GB GB52549A patent/GB662147A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1477721A2 (en) * | 2003-05-13 | 2004-11-17 | Pfeiffer Vacuum GmbH | Device for lubricating the bearings of a rotating shaft |
| EP1477721A3 (en) * | 2003-05-13 | 2004-12-29 | Pfeiffer Vacuum GmbH | Device for lubricating the bearings of a rotating shaft |
| CN113639029A (en) * | 2021-08-16 | 2021-11-12 | 上海尚实能源科技有限公司 | Turboprop engine reduction box unit body |
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