CN105756833A - Switching device between high pressure oil pipe and oil injector - Google Patents
Switching device between high pressure oil pipe and oil injector Download PDFInfo
- Publication number
- CN105756833A CN105756833A CN201610176065.0A CN201610176065A CN105756833A CN 105756833 A CN105756833 A CN 105756833A CN 201610176065 A CN201610176065 A CN 201610176065A CN 105756833 A CN105756833 A CN 105756833A
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- CN
- China
- Prior art keywords
- pressure oil
- oil pipe
- fuel injector
- connection tube
- intermediate connection
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention provides a switching device between a high pressure oil pipe and an oil injector. The switching device comprises a pressing cap, a middle connecting pipe, an O-shaped rubber sealing ring, an end face sealing gasket and an adapter, wherein an inner threaded connector used for being connected with the oil injector is arranged at one end of the pressing cap, the other end of the pressing cap is in contact connection with one end of the middle connecting pipe through an inner plane, an external thread is arranged at the other end of the middle connecting pipe, and connected with an inner thread of one end of the adapter after the end face sealing gasket is placed, the O-shaped rubber sealing ring used for being sealed with an engine valve cover is mounted outside the middle connecting pipe, and an oil drain opening is formed in the pressing cap. The switching device between the high pressure oil pipe and the oil injector disclosed by the invention has the benefits of enhancing the compatibility of the high pressure oil pipe and multiple oil injectors and the visibility of faults in a performance testing process to reduce the economic cost and time cost in the performance testing process of an engine and improve the accuracy of indicators in the performance testing process.
Description
Technical field
The invention belongs to engine test technical field, especially relate to the switching device between a kind of high-pressure oil pipe and fuel injector.
Background technology
nullEngine performance test plays very important effect in engine development process，In order to obtain a set of Combustion system matching scheme that disclosure satisfy that performance indications require，Developer and research staff often to carry out many rounds for target、Multiparameter、Multivariant engine performance match test，And in electromotor multiparameter matching process，The across comparison test of different oil supply systems or different fuel injector it is critical that，Research staff can select oil supply system and the fuel injector of support performance index by this test，But it is limited to the feature such as the unicity of high-pressure oil pipe and the multiformity of fuel injector，Process of the test would generally occur the problems such as high-pressure oil pipe joint and fuel injector oil-feed interface incompatible (external especially import fuel injector)，Also there will be high-pressure oil pipe and fuel injector interface occurred even if can mate by problems such as valve cover block，This can make research staff cannot observe the problems such as high-pressure oil pipe whether leakage of oil to occur.
Summary of the invention
In view of this, it is contemplated that the switching device proposed between a kind of high-pressure oil pipe and fuel injector, with solve development engine high-pressure oil pipe and multiple fuel injector cannot the technical problem such as oil leakage fault not easily observation in compatible, engine performance test process.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
nullA kind of switching device between high-pressure oil pipe and fuel injector，Including clamping cap、Intermediate connection tube、O type rubber seal、End face seal pad and chovr body，One end of described clamping cap is provided with the internal thread interface for connecting fuel injector，Its other end is connected with the end thereof contacts of described intermediate connection tube by inner plane，The other end of described intermediate connection tube is provided with external screw thread，It is connected with the female thread of described chovr body one end after placing described end face seal pad，The other end of described chovr body is provided with the external screw thread for connecting high-pressure oil pipe，The outside of described intermediate connection tube is installed for the described O type rubber seal with valve cover sealing，Described intermediate connection tube is equipped with the fuel gallery that diameter is identical and runs through with described chovr body，The diameter of described fuel gallery is identical with the internal diameter of high-pressure oil pipe fuel gallery，Described clamping cap is provided with oil leak hole.
Further, described chovr body is column structure, and it is taper surface that described chovr body is used for connecting one end medial surface of high-pressure oil pipe, the other end be provided externally with six side's installed surfaces.
Further, the female thread of described six side's installed surfaces is identical with the external screw thread specification of described intermediate connection tube, and the taper surface of described chovr body is identical with the conical head specification of high-pressure oil pipe.
Further, described clamping cap is hex nut structure, and the upper end in described clamping cap aperture is provided with a chuck, and chuck inner plane contacts connection with described intermediate connection tube.
Further, the female thread of described clamping cap is identical with the external screw thread specification of institute replacing fuel injector oil-in.
Further, described intermediate connection tube is lower end is the column structure of taper, and be provided externally with O shape rubber seal mounting groove and six sides of described intermediate connection tube install and tighten face, and described O type rubber seal is arranged on described O shape rubber seal mounting groove.
Further, the taper joint specification of described intermediate connection tube is identical with fuel injector oil-in taper joint specification.
Relative to prior art, the switching device between a kind of high-pressure oil pipe of the present invention and fuel injector has the advantage that
(1) switching device of the present invention is provided with clamping cap and intermediate connection tube, the installation to different fuel injector oil-ins and the observation of oil leakage fault can be realized, improve the observability of fault in the compatibility of high-pressure oil pipe and multiple fuel injector and performance test process, the chovr body arranged, the connection of intermediate connection tube and test chamber high-pressure oil pipe can be realized, final realize docking and high-pressure oil pipe and fuel injector interface external of different fuel injector and high-pressure oil pipe, improve performance test process middle finger target accuracy, reduce the Financial cost in engine performance test process and time cost.
(2) clamping cap of the present invention is provided with oil leak hole, it is simple to research staff's observation to problems such as high-pressure oil pipe leakage of oils in performance test process.
(3) six side's installed surfaces of the present invention and six sides install and tighten face, simplify operation, improve performance test process middle finger target accuracy, have saved time cost simultaneously.
Accompanying drawing explanation
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the high-pressure oil pipe described in the embodiment of the present invention and fuel injector switching device schematic diagram；
Fig. 2 is the high-pressure oil pipe described in the embodiment of the present invention and fuel injector switching device component diagram；
Fig. 3 is the clamping cap semi-cutaway described in the embodiment of the present invention；
Fig. 4 is the intermediate connection tube semi-cutaway described in the embodiment of the present invention；
Fig. 5 is the O shape rubber seal schematic diagram described in the embodiment of the present invention；
Fig. 6 is the chovr body semi-cutaway described in the embodiment of the present invention.
Description of reference numerals:
1-clamping cap；11-oil leak hole；2-intermediate connection tube；21-O shape rubber seal mounting groove；22-six side installs and tightens face；3-O type rubber seal；4-end face seal pad；5-chovr body, 51-six side's installed surface；6-fuel gallery.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second " etc. are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more these features.In describing the invention, except as otherwise noted, " multiple " are meant that two or more.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention by concrete condition.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
nullA kind of switching device between high-pressure oil pipe and fuel injector，As described in Figure 1，Including clamping cap 1、Intermediate connection tube 2、O type rubber seal 3、End face seal pad 4 and chovr body 5，One end of described clamping cap 1 is provided with the internal thread interface for connecting fuel injector，Its other end is connected with the end thereof contacts of described intermediate connection tube 2 by inner plane，The other end of described intermediate connection tube 2 is provided with external screw thread，It is connected with the female thread of described chovr body 5 one end after placing described end face seal pad 4，The other end of described chovr body 5 is provided with the external screw thread for connecting high-pressure oil pipe，The outside of described intermediate connection tube 2 is installed for the described O type rubber seal 3 with valve cover sealing，Described intermediate connection tube 2 is equipped with the fuel gallery 6 that diameter is identical and runs through with described chovr body 5，The diameter of described fuel gallery 6 is identical with the internal diameter of high-pressure oil pipe fuel gallery，Described clamping cap 1 is provided with oil leak hole 11.
Described chovr body 5 is column structure, one end medial surface that described chovr body 5 is used for connecting high-pressure oil pipe is taper surface, the other end be provided externally with six side's installed surfaces 51, the other end is the taper surface being provided with internal thread interface, the female thread of described chovr body 5 is identical with the external screw thread specification of described intermediate connection tube 2, and the taper surface of described chovr body 5 is identical with the conical head specification of high-pressure oil pipe.
Described clamping cap 1 is hex nut structure, and the upper end in described clamping cap 1 aperture is provided with a chuck, and chuck inner plane contacts connection with described intermediate connection tube 2, and the female thread of described clamping cap 1 is identical with the external screw thread specification of institute's replacing fuel injector oil-in.
Described intermediate connection tube 2 is lower end is the column structure of taper, be provided externally with O shape rubber seal mounting groove 21 and six sides of described intermediate connection tube 2 install and tighten face 22, described O type rubber seal 3 is arranged on described O shape rubber seal mounting groove 21, and the taper joint specification of described intermediate connection tube 2 is identical with fuel injector oil-in taper joint specification.The installation of the switching device between a kind of high-pressure oil pipe and fuel injector and control method:
1, labelling color is applied to equably on the conical head of intermediate connection tube 2, keep vertically putting it in the fuel injector oil-in taper surface matched, with hands, intermediate connection tube 2 is pressed on fuel injector oil-in, take out intermediate connection tube 2, whether continuous observe the marking of tinting on fuel injector oil-in taper surface, as continuous in the marking and cyclization wire, then can carry out next step and install, otherwise need the conical head surface of intermediate connection tube 2 is ground, finally meet smear test result；
2, the color mark on intermediate connection tube 2 conical head is cleaned; color mark on the fuel injector oil-in conical surface is cleaned simultaneously; the fuel injector that appearance carries out protecting is clamped gently with desk-top " vice ", and on the fuel injector oil-in conical surface that intermediate connection tube 2 right angle setting is matched；
3, by the intermediate connection tube 2 of the clamping cap 1 non-mounting O-shaped rubber seal 3 of traverse, and be attached by screw thread and fuel injector oil-in external screw thread, connection procedure need utilize instrument to install to tighten six sides of intermediate connection tube 2 face 22 is fixed, making not rotate against between clamping cap 1 and intermediate connection tube 2, screw-down torque recommends 10N m；
4, being placed on by end face seal pad 4 in the other end plane of intermediate connection tube 2 of step 3, then compressed by the external screw thread of the female thread Yu intermediate connection tube 2 that utilize six side's installed surfaces 51, screw-down torque recommends 8N m；
5, the switching device completing step 4 is put in EFS fuel oil single-time injection instrument, carry out pressurization to check, observe the sealing of switching device and fuel injector oil-in, reserve from the oil leak hole 11 of clamping cap 1 if any fuel oil, then illustrate that switching device seals bad with fuel injector oil-in, as reserved without fuel oil, then by revealing inspection, can be entered next step and install；
6, it is installed in engine cylinder cover by completing the step 5 fuel injector with switching device, and O type rubber seal 3 is installed in the O type rubber seal mounting groove 21 of intermediate connection tube 2, then valve cover is installed, and make O type rubber seal 3 contact with the O type rubber seal installing hole on valve cover, at this moment complete the sealing that fuel injector, switching device and electromotor are extraneous；
7, vertically being put into by the conical head of high-pressure oil pipe in the oil-out taper surface of the chovr body 5 matched, and utilize the female thread of high-pressure oil pipe and the external screw thread of chovr body 5 to be attached, the link position of chovr body 5 and high-pressure oil pipe is positioned at outside engine valve chamber cover.
8, as in engine performance debugging process, it is necessary to fuel injector is replaced, then have only to change the intermediate connection tube 2 matched with fuel injector, and repeat step 1～step 7.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (7)
- null1. the switching device between high-pressure oil pipe and fuel injector，It is characterized in that: include clamping cap (1)、Intermediate connection tube (2)、O type rubber seal (3)、End face seal pad (4) and chovr body (5)，One end of described clamping cap (1) is provided with the internal thread interface for connecting fuel injector，Its other end is connected with the end thereof contacts of described intermediate connection tube (2) by inner plane，The other end of described intermediate connection tube (2) is provided with external screw thread，Place described end face seal pad (4) to be connected with the female thread of described chovr body (5) one end afterwards，The other end of described chovr body (5) is provided with the external screw thread for connecting high-pressure oil pipe，The outside of described intermediate connection tube (2) is installed for described O type rubber seal (3) with valve cover sealing，Described intermediate connection tube (2) is equipped with the fuel gallery (6) that diameter is identical and runs through with described chovr body (5)，The diameter of described fuel gallery (6) is identical with the internal diameter of high-pressure oil pipe fuel gallery，Described clamping cap (1) is provided with oil leak hole (11).
- 2. the switching device between a kind of high-pressure oil pipe according to claim 1 and fuel injector, it is characterized in that: described chovr body (5) is column structure, it is taper surface that described chovr body (5) is used for connecting one end medial surface of high-pressure oil pipe, the other end be provided externally with six side's installed surfaces (51).
- 3. the switching device between a kind of high-pressure oil pipe according to claim 1 and 2 and fuel injector, it is characterized in that: the female thread of described chovr body (5) is identical with the external screw thread specification of described intermediate connection tube (2), and the taper surface of described chovr body (5) is identical with the conical head specification of high-pressure oil pipe.
- 4. the switching device between a kind of high-pressure oil pipe according to claim 1 and fuel injector, it is characterized in that: described clamping cap (1) is hex nut structure, the upper end in described clamping cap (1) aperture is provided with a chuck, and chuck inner plane contacts connection with described intermediate connection tube (2).
- 5. the switching device between a kind of high-pressure oil pipe according to claim 1 and fuel injector, it is characterised in that: the female thread of described clamping cap (1) is identical with the external screw thread specification of institute's replacing fuel injector oil-in.
- 6. the switching device between a kind of high-pressure oil pipe according to claim 1 and fuel injector, it is characterized in that: described intermediate connection tube (2) is lower end is the column structure of taper, be provided externally with O shape rubber seal mounting groove (21) and six sides of described intermediate connection tube (2) install and tighten face (22), and described O type rubber seal (3) is arranged on described O shape rubber seal mounting groove (21).
- 7. the switching device between a kind of high-pressure oil pipe and the fuel injector according to claim 1 or 6, it is characterised in that: the taper joint specification of described intermediate connection tube (2) is identical with fuel injector oil-in taper joint specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176065.0A CN105756833B (en) | 2016-03-24 | 2016-03-24 | A kind of switching device between high-pressure oil pipe and fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176065.0A CN105756833B (en) | 2016-03-24 | 2016-03-24 | A kind of switching device between high-pressure oil pipe and fuel injector |
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| Publication Number | Publication Date |
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| CN105756833A true CN105756833A (en) | 2016-07-13 |
| CN105756833B CN105756833B (en) | 2018-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610176065.0A Active CN105756833B (en) | 2016-03-24 | 2016-03-24 | A kind of switching device between high-pressure oil pipe and fuel injector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224150A (en) * | 2016-09-19 | 2016-12-14 | 天津帅通科技发展有限公司 | A kind of engine fuel injection pipe flux monitoring system |
| CN106762308A (en) * | 2016-12-08 | 2017-05-31 | 黑龙江省农业机械维修研究所 | Electrically-controlled pump nozzle oil spout oil catcher |
| CN107091185A (en) * | 2017-05-04 | 2017-08-25 | 中国北方发动机研究所(天津) | A kind of fuel injector crossover sub and its installation adjusting method |
| CN108317320A (en) * | 2018-04-04 | 2018-07-24 | 辽宁壮龙无人机科技有限公司 | Adapter assembly and fuel supply pipe |
| CN112746923A (en) * | 2020-07-29 | 2021-05-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Split type side oil inlet oil sprayer oil inlet device and side oil inlet oil sprayer oil inlet system |
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| DE8709953U1 (en) * | 1987-07-20 | 1987-09-10 | Wap-Reinigungssysteme GmbH & Co, 7919 Bellenberg | High pressure press fitting |
| CN203223324U (en) * | 2013-04-24 | 2013-10-02 | 上海柴油机股份有限公司 | Diesel engine fuel oil injector and high-pressure fuel oil inlet pipe connecting device |
| CN203686438U (en) * | 2014-01-29 | 2014-07-02 | 无锡威孚汽车柴油系统有限公司 | Detachable maintenance type quick male connector |
| CN103967667A (en) * | 2014-04-16 | 2014-08-06 | 中国北方发动机研究所(天津) | High-pressure fuel pipe turning-connection piece |
| CN204114384U (en) * | 2014-07-30 | 2015-01-21 | 海盐县通达液压管件厂 | A kind of hydraulic fitting assembly |
| CN104405550A (en) * | 2014-10-16 | 2015-03-11 | 中国北方发动机研究所(天津) | High-pressure oil way connector |
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2016
- 2016-03-24 CN CN201610176065.0A patent/CN105756833B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224150A (en) * | 2016-09-19 | 2016-12-14 | 天津帅通科技发展有限公司 | A kind of engine fuel injection pipe flux monitoring system |
| CN106762308A (en) * | 2016-12-08 | 2017-05-31 | 黑龙江省农业机械维修研究所 | Electrically-controlled pump nozzle oil spout oil catcher |
| CN106762308B (en) * | 2016-12-08 | 2019-11-05 | 黑龙江省农业机械维修研究所 | Electrically-controlled pump nozzle oil spout oil catcher |
| CN107091185A (en) * | 2017-05-04 | 2017-08-25 | 中国北方发动机研究所(天津) | A kind of fuel injector crossover sub and its installation adjusting method |
| CN108317320A (en) * | 2018-04-04 | 2018-07-24 | 辽宁壮龙无人机科技有限公司 | Adapter assembly and fuel supply pipe |
| CN112746923A (en) * | 2020-07-29 | 2021-05-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Split type side oil inlet oil sprayer oil inlet device and side oil inlet oil sprayer oil inlet system |
| CN112746923B (en) * | 2020-07-29 | 2022-10-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Split type side oil inlet oil sprayer oil inlet device and side oil inlet oil sprayer oil inlet system |
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| CN105756833B (en) | 2018-08-21 |
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