CN107387283B - Common rail fuel injector bushing ring selecting and armature lift measuring device - Google Patents
Common rail fuel injector bushing ring selecting and armature lift measuring device Download PDFInfo
- Publication number
- CN107387283B CN107387283B CN201710751858.5A CN201710751858A CN107387283B CN 107387283 B CN107387283 B CN 107387283B CN 201710751858 A CN201710751858 A CN 201710751858A CN 107387283 B CN107387283 B CN 107387283B
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- Prior art keywords
- common rail
- armature
- rail injector
- spring
- rod
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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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal
-
- 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
- F02M65/005—Measuring or detecting injection-valve lift, e.g. to determine injection timing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention provides a common rail injector bushing ring selecting and armature lift measuring device which can judge whether the common rail injector bushing ring and a damping gasket are qualified or not. The measuring device of the invention is used for detecting the damping gap and the air gap thickness of a common rail oil injector (200), and comprises: an upper ram (6) capable of contacting a liner ring (205) or an injector body (210) of a common rail injector (200); a force-applying lever (5) which is provided so as to be movable with respect to the upper ram and which can be brought into contact with an armature pin (203) of the common rail injector; a force application mechanism for applying a predetermined pressure to the armature pin (203) through a force application rod; a spindle (9) which is provided so as to be movable with respect to the upper ram and which can be brought into contact with the armature (202); a displacement sensor (10) that detects the displacement of the measuring rod; and a damping gap retest force application mechanism capable of applying a prescribed pressure to the measuring rod.
Description
Technical Field
The invention relates to a common rail injector bushing ring selecting and armature lift measuring device for detecting whether the selecting and the matching of a common rail injector bushing ring and a damping gasket are qualified.
Background
The structure of the common rail injector is depicted in fig. 3 (fig. 3 is a drawing of a specific embodiment, and is also used herein as a drawing for explaining the structure of the common rail injector), and as shown in fig. 3, a common rail injector 200 has an injector body 210, a control valve seat, an armature 202, an armature pin 203, a damper spring 204, a backing ring 205, and a damper shim 206.
During the assembly of the common rail injector, 2 important parameters must be strictly ensured, one of which is the damping gap, i.e. the gap value between the armature 202 and the control valve seat; the other is the air gap thickness H2, i.e., the gap value between the armature 202 and the backing ring 205. To ensure these two parameters, a suitable backing ring 205 and damping spring 204 need to be selected.
Disclosure of Invention
In view of the above, the present invention aims to provide a common rail injector bushing ring selecting and armature lift measuring device capable of determining whether the selecting and the matching of a common rail injector bushing ring and a damping pad are acceptable.
In order to achieve the above purpose, the present invention adopts the following technical scheme. In the following description of the present invention, reference numerals in the specific embodiments are added to brackets following the corresponding components, which are added to facilitate understanding of the present invention, and are not to be construed as equivalent to the preceding components, and do not limit the scope of the present invention.
The invention relates to a common rail injector bushing ring matching and armature lift measuring device, which is used for detecting damping gap and air gap thickness of a common rail injector (200), and comprises the following components: an upper ram (6) capable of contacting a liner ring (205) of the common rail injector (200) and an injector body (210) in a state where the liner ring (205) is not provided; a force-applying lever (5) provided so as to be movable with respect to an upper ram (6) and capable of being brought into contact with an armature pin (203) of the common rail injector (200); a force application mechanism for applying a 1 st prescribed pressure to the armature pin (203) via the force application lever (5); a measuring rod (9) which is provided so as to be movable with respect to the upper ram (6) and is capable of being brought into contact with an armature (202) of the common rail injector (200); a displacement sensor (10) that detects the displacement of the measuring rod (9); and a damping gap retest urging means capable of applying a 2 nd predetermined pressure to the spindle (9) on the armature (202) side in contact with the spindle (9).
With the common rail injector bushing ring matching and armature lift measuring device (sometimes simply referred to as measuring device) as described above, the measuring device may be configured such that, at the time of detection, the upper ram presses the injector body (210) of the common rail injector (200) in a state where the bushing ring is not provided, the spindle (9) presses the armature (202) of the common rail injector (200), the force application mechanism applies the 2 nd prescribed pressure to the armature rod (203) through the force application rod (5), and in this state, the displacement sensor (10) detects the displacement value (displacement of the spindle relative to the surface of the spindle in contact with the injector body where the upper ram occurs) at the moment of the spindle (9). From this displacement value, the appropriate collar size can be estimated, and the appropriate collar can be selected to be mounted on the injector body (210) of the common rail injector (200).
Then, the upper pressure head of the measuring device can be pressed on the lining ring (205), the measuring rod (9) is pressed on the armature (202), the force application mechanism applies the prescribed pressure of the No. 2 to the armature rod (203) through the force application rod (5), in this state, the displacement sensor (10) detects the displacement value of the measuring rod (9) at the moment, and a damping gap value is obtained, and if the damping gap value meets the requirement, the selection of the lining ring (205) is proper.
After the proper lining ring (205) is finally assembled, the upper pressure head of the measuring device can be pressed on the lining ring (205), the measuring rod (9) is pressed on the armature (202), the force application mechanism applies the prescribed pressure of the No. 2 to the armature rod (203) through the force application rod (5), and the displacement sensor (10) detects the displacement value of the measuring rod (9) at the moment. Then, the state before the test is maintained, the damping clearance retest force application mechanism applies the 2 nd prescribed pressure to the measuring rod (9) to enable the armature (202) to overcome the acting force of the damping spring (204) and contact the control valve seat, in the state, the displacement sensor (10) detects the displacement value of the measuring rod (9) at the moment, the displacement value is subtracted from the previous displacement value, the value of the damping clearance can be obtained, and the damping clearance value meeting the requirement indicates that the damping gasket (206) is suitable.
Therefore, the invention can detect the damping gap and the air gap thickness of the common rail oil injector (200) and finally can realize the detection of whether the matching of the common rail oil injector lining ring and the damping gasket is qualified.
In addition, the upper pressure head (6), the force application rod (5), the force application mechanism, the measuring rod (9) and the displacement sensor (10) form an air gap thickness detection mechanism capable of detecting the thickness of an air gap, and the damping gap detection mechanism capable of detecting the damping gap can be formed by only adding the damping gap retesting force application mechanism capable of applying the 2 nd prescribed pressure to the measuring rod (9) on the basis of the structure of the air gap thickness detection mechanism, namely, the upper pressure head (6), the force application rod (5), the force application mechanism, the measuring rod (9) and the displacement sensor (10) are shared by the air gap thickness detection mechanism and the damping gap detection mechanism, so that the structure can be greatly simplified, and the manufacturing cost can be reduced.
In the present invention, the urging means preferably includes a spring and a 1 st cylinder capable of urging the spring. In this case, the degree of deformation of the 1 st cylinder adjusting spring can be adjusted to adjust the 1 st predetermined pressure, so that the common rail injectors of different specifications can be easily handled.
In the present invention, the spring force applying mechanism further includes an operation plate (4) for transmitting the spring force of the spring to the force applying lever (5), and the operation plate (4) is horizontally arranged.
In the present invention, preferably, the spindle (9) has a through hole (9 a) penetrating horizontally, the operation plate (4) penetrates the through hole (9 a), and the through hole (9 a) allows the operation plate (4) and the spindle (9) to move relatively in the up-down direction.
With this structure, the measuring rod (9) and the operation plate (4) do not need to be arranged in a staggered manner in the horizontal direction, the structure can be compact, and the whole measuring device can be miniaturized.
In the present invention, the damping gap retest urging means is preferably disposed above the operation plate (4).
In the present invention, the spring force applying mechanism is preferably arranged such that the spring (3) and the pair of 1 st cylinders are disposed above the operation plate (4).
In the present invention, the damping gap retest urging means preferably includes a pair of 2 nd cylinders, and the 2 nd cylinders are disposed between the pair of 1 st cylinders in the horizontal direction.
In the present invention, the displacement sensor (10) is preferably disposed above the operation plate (4), and the displacement sensor (10) is preferably disposed between the pair of 2 nd cylinders in the horizontal direction.
In the invention, the measuring rod (9) is sleeved on the periphery of the force application rod (5), and the upper pressure head (6) is sleeved on the periphery of the measuring rod (9).
Drawings
FIG. 1 is a side view of a common rail injector collar selection and armature lift measurement apparatus, showing a common rail injector as a workpiece to be side;
FIG. 2 is a cross-sectional view of the common rail injector collar selection and armature lift measurement apparatus described above;
fig. 3 is a partial enlarged view of fig. 2.
Detailed Description
The common rail injector liner selection and armature lift measurement apparatus 100 in accordance with embodiments of the present invention is described below with reference to the accompanying drawings.
FIG. 1 is a side view of a common rail injector collar selection and armature lift measurement apparatus 100, with a common rail injector 200 shown as a workpiece to be side; fig. 2 is a cross-sectional view of a common rail injector collar selection and armature lift measurement apparatus 100.
As shown in fig. 1 and 2, the common rail injector bush fitting and armature lift measuring device 100 (hereinafter, also referred to simply as the measuring device 100) has a frame 1, and an upper ram 6 is fixed to a lower plate 1a of the frame 1, and the upper ram 6 is used to press against an injector body 210 or a bush 205 of the common rail injector 200, thereby performing a positioning function.
In addition, a displacement sensor 10 is installed at the center of the upper portion of the frame 1, a pair of damper clearance retesting cylinders 7 are installed at both sides of the displacement sensor 10, and a pair of analog electromagnet spring force cylinders 2 are installed at both sides of the damper clearance retesting cylinders 7.
The damping gap retest cylinder 7 is connected with the push plate 8 through a joint, the lower surface of the push plate 8 contacts with the upper end surface of a measuring rod 9 (three reference numerals "9" in fig. 2 denote the same component), and the lower end surface of the measuring rod 9 can abut against the upper surface of the armature 202 of the common rail injector 200. When the damper gap cylinder 7 protrudes downward, the push plate 8 is pushed downward by the joint, the push plate 8 pushes the rod 9 downward, and the rod 9 pushes the armature 202 of the common rail injector 200 downward.
The analog electromagnet spring force cylinder 2 is in contact with the spring 3 via the upper spring holding cylinder, and presses the spring 3 when it is extended downward. The lower end of the spring 3 is abutted against the horizontally arranged operation plate 4 by the lower spring holding cylinder, and the spring 3 presses the operation plate 4 downward when compressed. The action plate 4 is fixedly embedded (in an interference fit) with a spring force application rod 5 extending downwards, and the lower end of the spring force application rod 5 is used for abutting against an armature pin 203 of the common rail injector 200. When the spring biasing lever 5 is pushed downward, it pushes downward against the armature pin 203 of the common rail injector 200, and a force F (fig. 3) is applied to the armature pin 203.
The displacement sensor 10 detects the displacement of the spindle 9 by maintaining a contact state with the spindle 9 through the joint.
The spindle 9 is provided with a through hole 9a penetrating in the radial direction (in the right-left direction in fig. 2 in the present embodiment), and the operation plate 4 passes through the through hole 9a (the dimension of the operation plate 4 in the inside-outside direction of the paper surface in fig. 2 is smaller than the dimension of the through hole 9 a), and the through hole 9a has a certain height in the up-down direction to allow the operation plate 4 to move up and down. By providing such through holes 9a, the stylus 9 and the operation plate 4 do not need to be arranged in a front-rear or left-right offset manner, and the device can be made compact and miniaturized.
The operation of the common rail injector bushing selection and armature lift measurement apparatus 100 having the above-described configuration will be described below. The operation is controlled by a control means (computer) not shown.
A. Measurement of parameter B1 (FIG. 3)
This measurement is performed in a state where the liner ring 205 is not present in the common rail injector 200. It may be noted that a damping shim 206 is provided on common rail injector 200.
When the entire measuring device 100 is moved downward (a driving mechanism for driving the measuring device 100 to move downward is not shown) to press the upper ram 6 against the injector body 210 of the common rail injector 200, and the measuring rod 9 is pressed against the armature 202, the measuring rod 9 is displaced, and the displacement sensor 10 detects the displacement, so that B1 can be measured. The proper size of the liner ring 205 is obtained by calculating (or according to the pre-stored chart data) according to a certain formula according to the H2 value set by the system, so that the liner ring with the proper size can be selected;
B. air gap thickness H2 retest
The lining ring 205 is configured on the oil sprayer body 210, the whole measuring device 100 moves downwards to be tightly pressed with a workpiece (the common rail oil sprayer 200), then the measuring rod 9 is pressed on the armature, the upper pressure head 6 is pressed on the lining ring, the displacement of the measuring rod 9 is detected by the displacement sensor 10, the H2 value is obtained through calculation according to a certain formula (or according to pre-stored chart data), if the H2 value meets the requirement, the lining ring 205 is correctly selected, and if the H2 value does not meet the requirement, the lining ring 205 is reselected and then measured again;
C. damping gap measurement
The whole measuring device 100 moves downwards to be pressed with a workpiece (the common rail injector 200), so that the measuring rod 9 is pressed on the armature 202, the upper pressure head 6 is pressed on the lining ring 205, and the displacement sensor 10 records a value; after that, the damping gap retest cylinder 7 is pressed down, the armature 202 is contacted with a control valve seat (not shown) below and is attached to the control valve seat by overcoming the force of the damping spring 204 through the push plate 8 and the measuring rod 9, and the displacement sensor 10 measures a value again through the measuring rod 9, and the difference value of the two values is the damping gap. The damping shim 206 needs to be re-matched if the requirements are not met.
< supplementary explanation >
(1) In the above-described a to C, the spring force cylinder 2 of the simulated electromagnet simulating the spring force is always in the extended state, and the spring force applying rod 5 applies the force F to the armature pin 203 through the spring 3 and the operation plate 4, which corresponds to the action of the gas spring. The force F is adjustable for different workpiece specifications.
(2) In the process of matching the backing ring 205 and the H2 retest (A, B), the damping clearance retest cylinder 7 is always in an upper non-working state;
(3) In the measuring process, the displacement sensor 10 is always in contact with the measuring rod 9, and the measuring rod 9 is used for measuring;
(4) The weight of the measuring rod is very light, so that the damping spring 204 cannot be deformed under the action of the dead weight of the measuring rod 9, and the damping spring 204 can be deformed only when the damping clearance retest cylinder 7 is pressed down (extends downwards), so that the accuracy of measurement can be ensured.
< summary of the embodiment >
The common rail injector backing ring matching and armature lift measuring device 100 is used for detecting a damping gap and an air gap thickness H2 of a common rail injector 200, and comprises: an upper ram 6 capable of contacting the liner ring 205 of the common rail injector 200 and the injector body 210 in a state where the liner ring 205 is not provided; a spring force applying lever 5 provided so as to be movable with respect to the upper ram 6, capable of contacting the armature pin 203 of the common rail injector 200; a simulated electromagnet spring force urging cylinder 2 and a spring 3 (constituent parts of an urging mechanism in the present invention) that apply a prescribed pressure F (1 st prescribed pressure) to the armature pin 203 through a spring force urging lever 5; a spindle 9, which is provided in a movable manner with respect to the upper ram 6, capable of coming into contact with the armature 202 of the common rail injector 200; a displacement sensor 10 that detects a displacement of the spindle 9; a damper gap retest cylinder 7 (damper gap retest urging means) capable of applying a predetermined pressure (2 nd predetermined pressure) to the spindle 9 on the armature 202 side in contact with the spindle 9.
With the common rail injector bush fitting and armature lift measuring apparatus 100 described above, at the time of detection, the measuring apparatus 100 may be configured such that the upper ram 6 presses the injector body 210 of the common rail injector 200 in a state where the bush is not provided, the rod 9 presses the armature 202 of the common rail injector 200, the urging mechanism applies the 2 nd prescribed pressure to the armature rod 203 via the spring force urging rod 5, and in this state, the displacement sensor 10 detects that the displacement value rod of the rod 9 at this time is displaced with respect to the surface of the injector body where the upper ram is brought into contact. From this displacement value, an appropriate liner ring size can be estimated, and an appropriate liner ring can be selected to be mounted on the injector body 210 of the common rail injector 200.
Then, the upper ram of the measuring device is pressed against the backing ring 205, the spindle 9 is pressed against the armature 202, and the biasing mechanism applies a 2 nd predetermined pressure to the armature rod 203 via the spring force biasing rod 5, and in this state, the displacement sensor 10 detects the displacement value of the spindle 9 at this time, and obtains a damping gap value, which indicates that the backing ring 205 is properly selected if the damping gap value satisfies the requirement.
After the appropriate spacer 205 is finally assembled, the upper ram of the measuring device is pressed against the spacer 205, the spindle 9 is pressed against the armature 202, and the biasing mechanism applies a prescribed 2 nd pressure to the armature rod 203 via the spring force biasing rod 5, and in this state, the displacement sensor 10 detects the displacement value of the spindle 9 at this time. Then, the damper gap retest urging means applies the 2 nd predetermined pressure to the spindle 9 so that the armature 202 contacts the underlying control valve seat against the urging force of the damper spring 204, and in this state, the displacement sensor 10 detects the displacement value of the spindle 9 at this time, and the displacement value is subtracted from the previous displacement value, whereby the value of the damper gap can be obtained, and a satisfactory value of the damper gap indicates that the damper pad 206 is suitable.
Therefore, the invention can detect the damping gap and the air gap thickness H2 of the common rail oil injector 200, and finally can realize the detection of whether the matching of the common rail oil injector liner ring and the damping gasket is qualified.
The upper ram 6, the spring force applying rod 5, the applying mechanism, the measuring rod 9, and the displacement sensor 10 constitute an air gap thickness detecting mechanism capable of detecting the air gap thickness H2, and the damping gap retesting applying mechanism capable of applying the 2 nd predetermined pressure to the measuring rod 9 is added to the structure of the air gap thickness detecting mechanism to constitute a damping gap detecting mechanism for detecting the damping gap, that is, the air gap thickness detecting mechanism and the damping gap detecting mechanism share the upper ram 6, the spring force applying rod 5, the applying mechanism, the measuring rod 9, and the displacement sensor 10.
In the present embodiment, the magnitude of the force F (the 1 st predetermined pressure) can be adjusted by simulating the degree of compression deformation of the electromagnet spring force cylinder 2 (the 1 st cylinder) to adjust the spring 3, so that it is easy to cope with common rail injectors of different specifications.
In the present embodiment, the spring force biasing mechanism further includes an operation plate 4 for transmitting the spring force of the spring to the spring force biasing lever 5, and the operation plate 4 is horizontally arranged. The spindle 9 has a through hole 9a penetrating horizontally, and the operation plate 4 passes through the through hole 9a, and the through hole 9a allows the operation plate 4 and the spindle 9 to move relatively in the up-down direction.
With this configuration, the measuring bar 9 and the operation plate 4 do not have to be disposed so as to be horizontally offset, and the entire measuring apparatus can be made compact.
In the present embodiment, the damper clearance retest urging means is disposed above the operation plate 4. Further, a pair of 1 st cylinders of the spring force applying mechanism and the spring 3 are arranged above the operation plate 4. The damper clearance retest cylinder 7 (cylinder 2) is disposed between the pair of analog electromagnet spring force cylinders 2 (cylinder 1) in the horizontal direction.
In the present embodiment, the displacement sensor 10 is disposed above the operation plate 4, and the displacement sensor 10 is located between the pair of damper clearance retesting cylinders 7 in the horizontal direction.
In the present embodiment, the spindle 9 is fitted around the outer periphery of the spring force applying rod, and the upper ram 6 is fitted around the outer periphery of the spindle 9.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. A common rail injector bushing ring matching and armature lift measuring device is used for detecting damping gap and air gap thickness of a common rail injector (200), and is characterized in that,
comprising the following steps:
an upper ram (6) capable of contacting a liner ring (205) of the common rail injector (200) and an injector body (210) in a state where the liner ring (205) is not provided;
a force-applying lever (5) provided so as to be movable with respect to an upper ram (6) and capable of being brought into contact with an armature pin (203) of the common rail injector (200);
a force application mechanism for applying a 1 st prescribed pressure to the armature pin (203) via the force application lever (5);
a measuring rod (9) which is provided so as to be movable with respect to the upper ram (6) and is capable of being brought into contact with an armature (202) of the common rail injector (200);
a displacement sensor (10) that detects the displacement of the measuring rod (9);
and a damping gap retest urging means capable of applying a 2 nd predetermined pressure to the spindle (9) on the armature (202) side in contact with the spindle (9).
2. The common rail injector bushing selection and armature lift measurement device of claim 1, wherein the biasing mechanism is a spring force biasing mechanism comprising a spring and a 1 st cylinder capable of biasing the spring.
3. The common rail injector bushing selection and armature lift measurement device according to claim 2, characterized in that the spring force application mechanism further comprises an action plate (4) transmitting the spring force of the spring to the application rod (5), the action plate (4) being arranged horizontally.
4. A common rail injector bushing selection and armature lift measurement device according to claim 3, characterized in that the measuring rod (9) has a horizontally penetrating through hole (9 a), through which hole (9 a) the actuating plate (4) passes, the through hole (9 a) allowing a relative movement of the actuating plate (4) and the measuring rod (9) in up-down direction.
5. The common rail injector bushing selection and armature lift measurement device of claim 4, wherein the damping gap retest force application mechanism is disposed above the actuation plate (4).
6. The common rail injector bushing selection and armature lift measurement device according to claim 4, wherein the pair of 1 st cylinders of the spring force applying mechanism and the spring (3) are disposed above the operation plate (4).
7. The common rail injector bushing selection and armature lift measurement device of claim 6, wherein said damping gap retest biasing mechanism includes a pair of 2 nd cylinders, said 2 nd cylinders being disposed between a pair of said 1 st cylinders in a horizontal direction.
8. The common rail injector bushing selection and armature lift measurement device according to claim 7, wherein the displacement sensor (10) is disposed above the actuation plate (4), the displacement sensor (10) being located between the pair of 2 nd cylinders in the horizontal direction.
9. The common rail injector bushing selection and armature lift measurement device according to any one of claims 1 to 8, wherein the measuring rod (9) is sleeved on the outer periphery of the force application rod (5), and the upper pressure head (6) is sleeved on the outer periphery of the measuring rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710751858.5A CN107387283B (en) | 2017-08-28 | 2017-08-28 | Common rail fuel injector bushing ring selecting and armature lift measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710751858.5A CN107387283B (en) | 2017-08-28 | 2017-08-28 | Common rail fuel injector bushing ring selecting and armature lift measuring device |
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| CN107387283A CN107387283A (en) | 2017-11-24 |
| CN107387283B true CN107387283B (en) | 2023-08-11 |
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| CN201710751858.5A Active CN107387283B (en) | 2017-08-28 | 2017-08-28 | Common rail fuel injector bushing ring selecting and armature lift measuring device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108716443A (en) * | 2018-04-09 | 2018-10-30 | 江苏伟博智能装备科技有限公司 | A kind of in-situ detection method and device of common-rail injector armature lift |
| CN109282932A (en) * | 2018-10-31 | 2019-01-29 | 机科发展科技股份有限公司 | A kind of electromagnet cracking pressure and lift precision measurement apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031464A (en) * | 1989-09-15 | 1991-07-16 | Jan Tholerus | Apparatus for thickness determination |
| CN2842440Y (en) * | 2005-11-01 | 2006-11-29 | 武汉理工大学 | Electromagnet performance testing device for electromagnetic valve |
| CN103234488A (en) * | 2013-04-15 | 2013-08-07 | 机科发展科技股份有限公司 | Intelligent thickness and parallelism detector |
| CN104924053A (en) * | 2015-06-09 | 2015-09-23 | 机科发展科技股份有限公司 | Precision adapting system for common-rail injector gasket |
| CN104948370A (en) * | 2015-06-04 | 2015-09-30 | 机科发展科技股份有限公司 | Armature lift range recheck device for common-rail oil atomizer |
| CN106404381A (en) * | 2016-11-17 | 2017-02-15 | 广州市上腾电子科技有限公司 | One-way valve pressure-displacement testing device |
| CN207229281U (en) * | 2017-08-28 | 2018-04-13 | 机科发展科技股份有限公司 | Common-rail injector grommet is matched and armature lift range measuring apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011078953A1 (en) * | 2011-04-07 | 2012-10-11 | Robert Bosch Gmbh | fuel injector |
-
2017
- 2017-08-28 CN CN201710751858.5A patent/CN107387283B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031464A (en) * | 1989-09-15 | 1991-07-16 | Jan Tholerus | Apparatus for thickness determination |
| CN2842440Y (en) * | 2005-11-01 | 2006-11-29 | 武汉理工大学 | Electromagnet performance testing device for electromagnetic valve |
| CN103234488A (en) * | 2013-04-15 | 2013-08-07 | 机科发展科技股份有限公司 | Intelligent thickness and parallelism detector |
| CN104948370A (en) * | 2015-06-04 | 2015-09-30 | 机科发展科技股份有限公司 | Armature lift range recheck device for common-rail oil atomizer |
| CN104924053A (en) * | 2015-06-09 | 2015-09-23 | 机科发展科技股份有限公司 | Precision adapting system for common-rail injector gasket |
| CN106404381A (en) * | 2016-11-17 | 2017-02-15 | 广州市上腾电子科技有限公司 | One-way valve pressure-displacement testing device |
| CN207229281U (en) * | 2017-08-28 | 2018-04-13 | 机科发展科技股份有限公司 | Common-rail injector grommet is matched and armature lift range measuring apparatus |
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| CN107387283A (en) | 2017-11-24 |
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