CN113982898B - Fire-resistant test tool for high-pressure oil pump of engine - Google Patents
Fire-resistant test tool for high-pressure oil pump of engine Download PDFInfo
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- CN113982898B CN113982898B CN202111204558.8A CN202111204558A CN113982898B CN 113982898 B CN113982898 B CN 113982898B CN 202111204558 A CN202111204558 A CN 202111204558A CN 113982898 B CN113982898 B CN 113982898B
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- oil
- oil pump
- pressure oil
- fuel
- pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention discloses a fire-resistant test tool for a high-pressure oil pump of an engine, which comprises a combustor, a high-pressure oil pump, a tool rack and a standard joint, wherein the combustor is arranged on one side of the high-pressure oil pump; the high-pressure oil pump is provided with a high-pressure oil pipe, a fuel hose assembly, an oil quantity control unit and a temperature sensor, the fuel hose assembly is provided with a fuel damper, and the high-pressure oil pump is provided with a Banjo joint assembly through a hollow bolt. The scheme can simulate the assembly state of the high-pressure oil pump on the engine, simplifies the fire resistance test, replaces the complex structure of the whole engine for the fire resistance test, reduces the cost of the whole engine test, reduces the assembly of parts and meets the basic requirement of the fire resistance test.
Description
Technical Field
The invention relates to the field of aviation, in particular to a fire resistance test tool for a high-pressure oil pump of an engine.
Background
Aircraft engines are the core components of aircraft in the field of navigation, and besides the performance requirements of the engines themselves, the requirements of fire protection of civil aviation are met at the same time. Namely: during normal operation of the engine, each external pipe, joint and other component that retains or carries flammable liquids must be either fire resistant or fire resistant as confirmed by the civil aviation agency of China.
The high-pressure oil pump is used as a fuel supply part of the engine, and the fire resistance of the high-pressure oil pump is verified through a specific fire resistance test, so that the design and the configuration of the high-pressure oil pump can be shown that the high-pressure oil pump cannot cause fuel leakage to aggravate fire or the leakage amount cannot exceed dangerous amount under the condition of fire, and the test result shows that the design of the high-pressure oil pump meets the fire resistance grade requirement of clause '33.17 b'.
However, based on the current development situation of the civil aero-engine in China, the fire prevention verification of the aero-engine in China only has the technical requirements of relevant terms, and the specific test implementation mode has few precedents. The invention mainly aims at the fire-resistant test implementation mode related to the high-pressure oil pump of the aeroengine, and shows that the high-pressure oil pump simulates the working mode of the whole machine through the related test tool, and can meet the related fire-resistant clause required by civil aviation bureau.
Disclosure of Invention
Object of the invention
Therefore, the invention aims to provide an engine high-pressure oil pump fire resistance test tool, so that the technical requirements of relevant terms are met for fire resistance verification of an aeroengine, and a specific test implementation mode is less than a precedent.
(II) technical scheme
In order to achieve the technical purpose, the invention provides a fire resistance test tool for an engine high-pressure oil pump:
the high-pressure oil pump is arranged on the tool rack and used for simulating the assembly of the high-pressure oil pump on an engine;
the high-pressure oil pump is provided with a high-pressure oil pipe, a fuel hose assembly, an oil quantity control unit and a temperature sensor, the fuel hose assembly is provided with a fuel damper, the high-pressure oil pump is provided with a Banjo joint assembly through a hollow bolt, the Banjo joint assembly is communicated with an oil rail oil return pipe and an oil injector oil return pipe, and the fuel hose assembly is provided with a pressure sensor through the hollow bolt;
and the fuel oil damper and the oil outlet pipe of the Banjo joint assembly are respectively provided with a standard joint, and the standard joints are used for connecting the fuel oil flow and simulating the flow direction of the fuel oil on the engine through the high-pressure oil pump.
Preferably, the high-pressure oil pump is provided with an oil inlet A, an oil inlet B, an oil inlet C, an oil outlet D and an oil outlet E;
the oil inlet A is connected with the standard joint through an oil tank outside the testing chamber, so that fuel enters the high-pressure oil pump through the fuel damper and is used for simulating the oil inlet state of the high-pressure oil pump on the engine;
and the oil inlet B is connected with an oil return pipe of the oil sprayer through an external oil tank of the laboratory and is used for simulating the state that redundant fuel oil flows back to the Banjo joint assembly after the fuel oil passes through the oil sprayer of the engine.
Preferably, the oil inlet C is connected with an oil rail oil return pipe through an oil tank outside the testing chamber and is used for simulating the state that redundant fuel in an engine oil rail flows back to the Banjo joint assembly;
and the oil outlet D flows out high-pressure fuel in a high-pressure fuel pump of the high-pressure fuel pump to an outside oil tank of the test chamber through a high-pressure fuel pipe.
Preferably, the oil E returns excess fuel to the outside reservoir of the test chamber via a standard connector attached to the Banjo connector assembly.
Preferably, the tool rack comprises a mounting rack, a high-pressure oil pump mounting table and a mounting rack are fixed on the mounting rack, a rotating rod is rotatably mounted on the mounting rack, the high-pressure oil pump is fixedly mounted on the high-pressure oil pump mounting table, the input end of the high-pressure oil pump is connected with the rotating rod, and the other end of the rotating rod is connected with a driving motor fixed on the tool rack through a sprocket assembly.
Preferably, the sprocket assembly comprises a driven sprocket fixed at the corresponding end of the rotating rod, a driving sprocket is fixed at the output end of the driving motor, and a chain is connected between the driving sprocket and the driven sprocket in a transmission manner.
Preferably, the rotating rod is rotatably installed on the installation through a bearing, the number of the installation is two, and the two installation are respectively positioned at two ends of the rotating rod.
Preferably, a mounting gasket is arranged between the fuel hose assembly and the hollow bolt.
From the above technical scheme, the application has the following beneficial effects:
the scheme can simulate the assembly state of the high-pressure oil pump on the engine, simplifies the fire resistance test, replaces the complex structure of the whole engine for the fire resistance test, reduces the cost of the whole engine test, reduces the assembly of parts and meets the basic requirement of the fire resistance test. Meanwhile, the oil inlet and outlet pipeline flow related to the tool is adjustable, the tool design is simple and reliable, and laboratory personnel can conveniently conduct test operation.
According to the scheme, the actual working state of the high-pressure oil pump on the engine is simulated, and the high-pressure oil pump can meet the relevant test verification requirements of fire-resistant terms required by civil aviation on the premise of not changing the assembly state and the circulation flow.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is an assembly schematic diagram of a test fixture provided by the invention.
Fig. 2 is an assembly schematic diagram of the high-pressure oil pump and the related parts provided by the invention.
Fig. 3 is a schematic structural diagram of a tooling bench provided by the invention.
Fig. 4 is a schematic diagram of a fuel flow direction provided by the present invention.
Description of the drawings: 1 a burner, 2 a high-pressure oil pump, 21 a high-pressure oil pipe, 22 a fuel hose assembly, 23 a pressure sensor, 24 a hollow bolt, 25 a mounting gasket, 26 a fuel control unit, 27 a Banjo joint assembly, 28 a hollow bolt, 29 a fuel rail oil return pipe, 210 a fuel injector oil return pipe, 211 a temperature sensor, 212 a fuel damper, 3 a tool bench, 31 a driven sprocket, 32 a chain, 33 a driving sprocket, 34 a driving motor, 35 a high-pressure oil pump mounting table, 36 a mounting frame, 37 a mounting seat, 38 a rotating rod and 4 standard joints.
Detailed Description
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, the same or similar reference numerals indicate the same or similar parts and features. The drawings merely schematically illustrate the concepts and principles of embodiments of the disclosure and do not necessarily illustrate the specific dimensions and proportions of the various embodiments of the disclosure. Specific details or structures may be shown in exaggerated form in particular figures to illustrate related details or structures of embodiments of the present disclosure.
Referring to fig. 1-4:
example 1
The utility model provides an engine high pressure oil pump fire resistance test frock, includes combustor 1, high pressure oil pump 2, frock rack 3 and standard joint 4, and combustor 1 sets up in one side of high pressure oil pump 2, and high pressure oil pump 2 installs and is used for the assembly of simulation high pressure oil pump 2 on frock rack 3 on the engine. The high-pressure oil pump 2 is provided with a high-pressure oil pipe 21, a fuel hose assembly 22, an oil quantity control unit 26 and a temperature sensor 211, the fuel hose assembly 22 is provided with a fuel damper 212, the high-pressure oil pump 2 is provided with a Banjo joint assembly 27 through a hollow bolt 28, the Banjo joint assembly 27 is communicated with an oil rail oil return pipe 29 and an oil injector oil return pipe 210, and the fuel hose assembly 22 is provided with a pressure sensor 23 through a hollow bolt 24. Specifically, the oil pressure can be detected by the pressure sensor 23, and the pressure sensor 23 is provided in the prior art, and is of the existing general type.
The fuel damper 212 and the oil outlet pipe of the Banjo joint assembly 27 are each provided with a standard joint 4. In particular, the standard connector 4 is provided for switching on the fuel flow and simulating the direction of flow of the fuel through the high-pressure pump 2 on the engine.
In addition, the high-pressure oil pump 2 is provided with an oil inlet A, an oil inlet B, an oil inlet C, an oil outlet D and an oil outlet E; the oil inlet A is connected with the standard joint 4 through an oil tank outside the testing chamber, so that fuel enters the high-pressure oil pump 2 through the fuel damper 212 and is used for simulating the oil inlet state of the high-pressure oil pump 2 on the engine.
And the oil feed B is connected to the fuel injector return pipe 210 through a laboratory external tank for simulating the condition of the fuel flowing back to the Banjo joint assembly 27 after the fuel passes through the engine injector. The oil feed C is connected to the rail return pipe 29 through an outside oil tank of the test chamber, and can be used to simulate the state where the excessive fuel in the engine rail flows back to the Banjo joint assembly 27.
Further, the oil D flows out the high-pressure oil in the high-pressure oil pump 2 to an outside tank of the test chamber through the high-pressure oil pipe 21. And the outlet oil E returns the excess fuel to the outside tank of the test chamber through the standard joint 4 connected to the Banjo joint assembly 27.
Example two
On the basis of the first embodiment, the tool rack 3 comprises a mounting frame 36, a high-pressure oil pump mounting table 35 and a mounting 37 are fixed on the mounting frame 36, a rotating rod 38 is rotatably mounted on the mounting 37, the high-pressure oil pump 2 is fixedly mounted on the high-pressure oil pump mounting table 35, the input end of the high-pressure oil pump 2 is connected with the rotating rod 38, and the other end of the rotating rod 38 is connected with a driving motor 34 fixed on the tool rack 3 through a sprocket assembly.
The sprocket assembly includes a driven sprocket 31 fixed at a corresponding end of a rotating rod 38, a driving sprocket 33 fixed at an output end of a driving motor 34, and a chain 32 connected between the driving sprocket 33 and the driven sprocket 31. The rotation lever 38 is rotatably mounted on the mount 37 by a bearing, and the number of the mounts 37 is two, and the two mounts 37 are respectively located at both ends of the rotation lever 38. A mounting washer 25 is provided between the fuel hose assembly 22 and the hollow bolt 24.
According to the invention, the driven sprocket 31 is driven to rotate by the operation of the driving motor 34 on the tool rack 3, so that the rotor inside the high-pressure oil pump 2 rotates, the high-pressure oil pump 2 simulates the tool state on the engine to perform oil inlet and oil outlet, and the fuel oil circulation direction is shown in fig. 4. After the high-pressure oil pump 2 enters normal fuel circulation, the burner 1 is moved to the position shown in fig. 1, and fire resistance test verification is performed for a prescribed time.
The scheme can simulate the assembly state of the high-pressure oil pump on the engine, simplifies the fire resistance test, replaces the complex structure of the whole engine for the fire resistance test, reduces the cost of the whole engine test, reduces the assembly of parts and meets the basic requirement of the fire resistance test. Meanwhile, the oil inlet and outlet pipeline flow related to the tool is adjustable, the tool design is simple and reliable, and laboratory personnel can conveniently conduct test operation.
The exemplary implementation of the solution proposed by the present disclosure has been described in detail hereinabove with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and adaptations can be made to the specific embodiments described above and that various combinations of the technical features, structures proposed by the present disclosure can be made without departing from the scope of the present disclosure, which is defined by the appended claims.
Claims (5)
1. The utility model provides an engine high pressure oil pump fire resistance test frock, includes combustor (1), high pressure oil pump (2), frock rack (3) and standard joint (4), and combustor (1) sets up in one side of high pressure oil pump (2), its characterized in that, high pressure oil pump (2) are installed and are used for simulating the assembly of high pressure oil pump (2) on the engine on frock rack (3);
the high-pressure oil pump (2) is provided with a high-pressure oil pipe (21), a fuel hose assembly (22), an oil quantity control unit (26) and a temperature sensor (211), the fuel hose assembly (22) is provided with a fuel damper (212), the high-pressure oil pump (2) is provided with a Banjo joint assembly (27) through a hollow bolt (28), the Banjo joint assembly (27) is communicated with an oil rail oil return pipe (29) and an oil injector oil return pipe (210), and the fuel hose assembly (22) is provided with a pressure sensor (23) through a hollow bolt (24);
the fuel oil damper (212) and the oil outlet pipe of the Banjo joint assembly (27) are respectively provided with a standard joint (4), and the standard joint (4) is used for connecting the fuel oil flow and simulating the flow direction of the fuel oil on the engine through the high-pressure oil pump (2);
the high-pressure oil pump (2) is provided with an oil inlet A, an oil inlet B, an oil inlet C, an oil outlet D and an oil outlet E;
the oil inlet A is connected with the standard joint (4) through an oil tank outside the testing chamber, so that fuel enters the high-pressure oil pump (2) through the fuel damper (212) and is used for simulating the oil inlet state of the high-pressure oil pump (2) on the engine;
the oil inlet B is connected with an oil return pipe (210) of the oil injector through an external oil tank of the laboratory and is used for simulating the state that redundant fuel oil flows back to the Banjo joint assembly (27) after the fuel oil passes through the oil injector of the engine;
the oil inlet C is connected with an oil rail oil return pipe (29) through an oil tank outside the testing chamber and is used for simulating the state that redundant fuel in an engine oil rail flows back to the Banjo joint assembly (27);
the oil outlet D is used for discharging high-pressure fuel in the high-pressure fuel pump (2) of the high-pressure fuel pump to an oil tank outside the test chamber through a high-pressure fuel pipe (21);
the oil E returns the redundant fuel to an oil tank outside the test chamber through a standard connector (4) connected to a Banjo connector assembly (27).
2. The fire-resistant test fixture for the high-pressure oil pump of the engine according to claim 1, wherein the fixture rack (3) comprises a mounting rack (36), a high-pressure oil pump mounting table (35) and a mounting (37) are fixed on the mounting rack (36), a rotating rod (38) is rotatably mounted on the mounting (37), the high-pressure oil pump (2) is fixedly mounted on the high-pressure oil pump mounting table (35), the input end of the high-pressure oil pump (2) is connected with the rotating rod (38), and the other end of the rotating rod (38) is connected with a driving motor (34) fixed on the fixture rack (3) through a sprocket assembly.
3. The fire resistance test fixture for the high-pressure oil pump of the engine according to claim 2, wherein the sprocket assembly comprises a driven sprocket (31) fixed at the corresponding end of a rotating rod (38), a driving sprocket (33) is fixed at the output end of a driving motor (34), and a chain (32) is connected between the driving sprocket (33) and the driven sprocket (31) in a transmission manner.
4. A fire-resistant test fixture for high-pressure oil pump of engine according to claim 3, characterized in that the rotating rod (38) is rotatably mounted on the mounting (37) through bearings, the number of the mounting (37) is two, and the two mounting (37) are respectively positioned at two ends of the rotating rod (38).
5. The fire resistance test fixture for the high-pressure oil pump of the engine, according to claim 4, is characterized in that a mounting gasket (25) is arranged between the fuel hose assembly (22) and the hollow bolt (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111204558.8A CN113982898B (en) | 2021-10-15 | 2021-10-15 | Fire-resistant test tool for high-pressure oil pump of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111204558.8A CN113982898B (en) | 2021-10-15 | 2021-10-15 | Fire-resistant test tool for high-pressure oil pump of engine |
Publications (2)
| Publication Number | Publication Date |
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| CN113982898A CN113982898A (en) | 2022-01-28 |
| CN113982898B true CN113982898B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111204558.8A Active CN113982898B (en) | 2021-10-15 | 2021-10-15 | Fire-resistant test tool for high-pressure oil pump of engine |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206634A (en) * | 1978-09-06 | 1980-06-10 | Cummins Engine Company, Inc. | Test apparatus and method for an engine mounted fuel pump |
| CN101004161A (en) * | 2006-12-18 | 2007-07-25 | 中国船舶重工集团公司第七一一研究所 | Electric controlled tester and testing method for preformance of high-pressure oil pump in use for coaxial tracks of engines |
| CN208651012U (en) * | 2018-05-02 | 2019-03-26 | 东风康明斯发动机有限公司 | Diesel engine low-voltage fuel pipeline |
| CN111237109A (en) * | 2020-03-23 | 2020-06-05 | 安徽航瑞航空动力装备有限公司 | Leakage test device suitable for high-pressure common-rail transverse cavity oil inlet type oil injector of piston type diesel engine |
| CN111238820A (en) * | 2020-03-25 | 2020-06-05 | 中国航发哈尔滨东安发动机有限公司 | Lubricating oil pump fire-proof test equipment |
| CN213928595U (en) * | 2020-11-12 | 2021-08-10 | 一拖(洛阳)柴油机有限公司 | Natural suction type common rail diesel engine oil supply device |
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2021
- 2021-10-15 CN CN202111204558.8A patent/CN113982898B/en active Active
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| CN113982898A (en) | 2022-01-28 |
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