CN201851869U - Lubricating oil booster pump of lubricating oil system of airplane - Google Patents
Lubricating oil booster pump of lubricating oil system of airplane Download PDFInfo
- Publication number
- CN201851869U CN201851869U CN2010205267247U CN201020526724U CN201851869U CN 201851869 U CN201851869 U CN 201851869U CN 2010205267247 U CN2010205267247 U CN 2010205267247U CN 201020526724 U CN201020526724 U CN 201020526724U CN 201851869 U CN201851869 U CN 201851869U
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- lubricating oil
- pressure
- oil
- outlet
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Abstract
The utility model belongs to a technology of a lubricating oil pump of an airplane and relates to an improvement of a lubricating oil booster pump of the lubricating oil system of the airplane. The lubricating oil booster pump comprises a booster pump housing with a lubricating oil inlet (2) and a lubricating oil outlet (3), as well as a gear pump (1) and an oil filtering component (4), which are mounted in the housing, and the lubricating oil booster pump is characterized in that a pressure-limiting one-way valve (6) is mounted in the booster pump housing, an oil outlet of the gear pump (1) is communicated with an inlet (6a) of the pressure-limiting one-way valve (6) through an inner pipeline, an outlet (6c) of the pressure-limiting one-way valve (6) is communicated with the inlet of the oil filtering component (4) through the inner pipeline, and a pressure relief opening (6b) of the pressure-limiting one-way valve (6) is communicated with the lubricating oil inlet (2) through the inner pipeline (7). The lubricating oil booster pump has the pressure-limiting capability, when the pressure at the oil outlet of the gear pump (1) is too high, the pressure relief opening (6b) of the pressure-limiting one-way valve (6) is opened, thereby reducing the pressure at the oil outlet of the gear pump (1), ensuring the normal work of a follow-up oil passage and avoiding faults of an engine.
Description
Technical field
The utility model belongs to aircraft lubricating oil pump technology, relates to the improvement to the lubricating oil suction booster of aircraft oil system.
Background technique
The lubricating oil suction booster structural principle of existing aircraft oil system is referring to Fig. 1, and lubricating oil import 2 and lubricating oil export 3 suction booster housing, gear pump 1, check valve 5 and the oil filter assembly 4 that is installed in the housing formed by having for it.The filler opening of gear pump 1 is communicated with lubricating oil import 2 by interior pipeline, the oil outlet of gear pump 1 is communicated with by the import of interior pipeline with oil filter assembly 4, the outlet of oil filter assembly 4 is communicated with lubricating oil outlet 3 by interior pipeline, the import of check valve 5 is communicated with lubricating oil import 2 by interior pipeline, and the outlet of check valve 5 is communicated with by the import of interior pipeline with oil filter assembly 4.The effect of check valve 5 is: when the inlet pressure rising reached the check valve cracking pressure, check valve was opened, and fluid directly flows out from check valve without the gear pump supercharging and enters oil filter assembly 4.The shortcoming of this lubricating oil suction booster is: do not have the pressure limiting effect, when inlet pressure excessively raises, because lubricating oil pressure is too high, will cause follow-up oil circuit cisco unity malfunction, cause engine failure.
Summary of the invention
The purpose of this utility model is: propose a kind of lubricating oil suction booster with aircraft oil system of pressure limiting ability, can prevent that lubricating oil pressure from excessively raising, guarantee follow-up oil circuit proper functioning, avoid producing engine failure.
The technical solution of the utility model is: the lubricating oil suction booster of aircraft oil system, comprise the suction booster housing that has the outlet of lubricating oil import and lubricating oil, be installed in gear pump and oil filter assembly in the housing, the filler opening of gear pump is communicated with the lubricating oil import by interior pipeline, and the outlet of oil filter assembly is communicated with the lubricating oil outlet by interior pipeline; It is characterized in that, a pressure limiting check valve is installed in the suction booster housing, the oil outlet of gear pump is communicated with by the import of interior pipeline with the pressure limiting check valve, the outlet of pressure limiting check valve is communicated with by the import of interior pipeline with oil filter assembly, and the pressure relief opening of pressure limiting check valve is communicated with the lubricating oil import by interior pipeline.
The utility model has the advantages that: have the pressure limiting ability, when the overpressure of gear pump 1 oil outlet, the pressure relief opening 6b of pressure limiting check valve 6 opens, the part high pressure oil is turned back to lubricating oil import 2, thereby reduce the pressure of gear pump 1 oil outlet, guarantee follow-up oil circuit proper functioning, avoided engine failure.
Description of drawings
Fig. 1 is the lubricating oil suction booster structural principle schematic representation of existing aircraft oil system.
Fig. 2 is a structural principle schematic representation of the present utility model.
Embodiment
Below the utility model is described in further details.Referring to Fig. 2, the lubricating oil suction booster of aircraft oil system, comprise the suction booster housing that has lubricating oil import 2 and lubricating oil outlet 3, be installed in gear pump 1 and oil filter assembly 4 in the housing, the filler opening of gear pump 1 is communicated with lubricating oil import 2 by interior pipeline, and the outlet of oil filter assembly 4 is communicated with lubricating oil outlet 3 by interior pipeline; It is characterized in that, a pressure limiting check valve 6 is installed in the suction booster housing, the oil outlet of gear pump 1 is communicated with the import 6a of pressure limiting check valve 6 by interior pipeline, the outlet 6c of pressure limiting check valve 6 is communicated with by the import of interior pipeline with oil filter assembly 4, and the pressure relief opening 6b of pressure limiting check valve 6 is communicated with lubricating oil import 2 by interior pipeline 7.
Working principle of the present utility model is: pressure limiting check valve 6 has outlet 6c and pressure relief opening 6b.When the lubricating oil pressure of gear pump 1 oil outlet greater than the port opening pressure of pressure limiting check valve 6 during less than the pressure relief opening cracking pressure, the port opening of pressure limiting check valve 6 and pressure relief opening is closed; When the lubricating oil pressure of gear pump 1 oil outlet during greater than the pressure relief opening cracking pressure of pressure limiting check valve 6, pressure relief opening is opened, and the part high pressure oil is turned back to lubricating oil import 2, thereby reduces the pressure of gear pump 1 oil outlet; When the lubricating oil pressure of gear pump 1 oil outlet dropped to pressure relief opening cracking pressure less than pressure limiting check valve 6, pressure relief opening was closed again.
Among the embodiment of the present utility model, pressure limiting check valve 6 adopts finished parts.
Claims (1)
1. the lubricating oil suction booster of aircraft oil system, comprise that the suction booster housing that has lubricating oil import [2] and lubricating oil outlet [3], gear pump [1] and the oil that is installed in the housing filters assembly [4], the filler opening of gear pump [1] is communicated with lubricating oil import [2] by interior pipeline, and the outlet of oil filter assembly [4] is communicated with lubricating oil outlet [3] by interior pipeline; It is characterized in that, a pressure limiting check valve [6] is installed in the suction booster housing, the oil outlet of gear pump [1] is communicated with the import [6a] of pressure limiting check valve [6] by interior pipeline, the outlet [6c] of pressure limiting check valve [6] is communicated with by the import of interior pipeline with oil filter assembly [4], and the pressure relief opening [6b] of pressure limiting check valve [6] is communicated with lubricating oil import [2] by interior pipeline [7].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205267247U CN201851869U (en) | 2010-09-10 | 2010-09-10 | Lubricating oil booster pump of lubricating oil system of airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205267247U CN201851869U (en) | 2010-09-10 | 2010-09-10 | Lubricating oil booster pump of lubricating oil system of airplane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851869U true CN201851869U (en) | 2011-06-01 |
Family
ID=44094260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205267247U Expired - Fee Related CN201851869U (en) | 2010-09-10 | 2010-09-10 | Lubricating oil booster pump of lubricating oil system of airplane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851869U (en) |
-
2010
- 2010-09-10 CN CN2010205267247U patent/CN201851869U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20160910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |