CN206092254U - High -pressure oil pump roller tappet for engine - Google Patents
High -pressure oil pump roller tappet for engine Download PDFInfo
- Publication number
- CN206092254U CN206092254U CN201621170776.9U CN201621170776U CN206092254U CN 206092254 U CN206092254 U CN 206092254U CN 201621170776 U CN201621170776 U CN 201621170776U CN 206092254 U CN206092254 U CN 206092254U
- Authority
- CN
- China
- Prior art keywords
- fairlead
- oil pump
- pressure oil
- bracket
- roller tappet
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model provides a high -pressure oil pump roller tappet for engine for engine fuel injection system installs between the driving cam and fuel feed pump plunger in the engine cylinder lid, the roller tappet contains uide bushing, U -shaped support and round pin axle roller external member. The U -shaped support is by the whole stamping forming of steel sheet, the uide bushing adopts special window opening mode, round pin axle both ends need not the riveting. The utility model discloses constitutional detail quantity is less, and the function is integrated, can effectively reduce whole weight, reduces movement inertia power, reduce friction and wearing and tearing, and job stabilization improves engine efficiency.
Description
Technical field
This utility model is related to engine apparatus technical field, and more particularly to a kind of electromotor high-pressure oil pump roller is endured
Post.
Background technology
Roller tappet is a kind of vitals of the automobile engine of employing high-pressure oil pump system, installed in driving cam and
Between tappet, it is that straight reciprocating motion promotes tappet motion, primary structure to include simultaneously by the convert rotational motion of driving cam
Fairlead, support, roller and bearing pin.
The fairlead of existing high-pressure oil pump roller tappet is cylindrical barrel housing, by complicated cold forming processing system
Into technological process is complicated, and machining cost is high, causes tappet cost very high, cannot also optimize the service efficiency of material；It is oriented to
Set is integrally formed for forging with support, is caused external drive cam to act on the side force on support and can be transferred to fairlead, both
Fairlead can be caused to deform, also resulted in fairlead and shaken in cylinder body, make cylinder body and fairlead produce damage；Additionally,
The guide pad for being used to limit roller tappet axial rotation in fairlead side is the split-type structural that is embedded on shell, makes production
Linkage editor is more complicated.
Utility model content
This utility model will solve problem of the prior art, there is provided a kind of electromotor high-pressure oil pump roller tappet, structure
Simple with assembling, number of parts is few, reduces cost and weight, reduces friction unnecessary between each part, improves reliability
Property.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of electromotor high-pressure oil pump roller tappet, for electromotor injection system, is installed in engine cylinder cover
Between driving cam and fuel feed pump plunger, the roller tappet includes fairlead, U-bracket and bearing pin roller external member, bearing pin roller
External member is installed on U-bracket, and U-bracket is installed in fairlead；The fairlead inwall left and right sides is respectively provided with two wings
Plate, the U-bracket are global formation, and compared with existing structure, U-bracket entirety wall thickness is thicker, can bear bigger load,
Which directly bears the load from driving cam with high-pressure oil pump, reduces fairlead load, can obviously reduce friction loss, U
Shape support includes base plate, is respectively provided with one block of side plate holded up upwards positioned at the base plate left and right sides, installs back side panel and is stuck in two wings
Between plate, prevent which from rocking, play fixation；Same level position on two blocks of side plates is respectively provided with axis hole, for installing
Support bearing pin roller sleeve part；The fairlead inwall is provided with the cannelure of indent, and it is curved that the floor rear is provided with end face
Afterbody, after installation, afterbody is snapped in cannelure, is played and is installed fixed effect.Roller tappet is assembled to electromotor rear pin shaft roller sleeve
Part is offseted with driving cam, and U-bracket is offseted with fuel feed pump plunger, and the convert rotational motion of driving cam is the straight line of roller tappet
Move back and forth.
Preferably, the fairlead is the columnar structured of global formation, and the symmetric position of left and right sides wall opens up fenestrate
Mouthful, window is located at fairlead centre position.Two of fairlead still retains its cylindrical structure, play two ends can wholecircle be oriented to
Effect, with good guidance quality, such that it is able to greatly reduce fairlead height so as to reduce high-pressure oil pump roller tappet
Overall structure height.
Preferably, the height of the window can shelter from the bearing pin in bearing pin roller external member, so as to prevent in the axial direction
Bearing pin is skidded off so that bearing pin specially can be fixedly mounted.
Preferably, the special window of the fairlead has portion of material inwardly to fold in window both sides in windowing, between formation
Away from two wing plates matched with U-bracket side plate width, play the role of positioning, U-bracket is effectively prevented relative to fairlead
Vert.
Preferably, the bottom on front side of the fairlead is provided with breach, and the rotation stop locating piece of protrusion is provided with front side of the base plate,
During rotation stop locating piece is stuck in breach after installation and protrude from fairlead outside wall surface.The combination of breach and rotation stop locating piece has two works
It is to limit rotation of the U-bracket in fairlead with, one, which two is the positioning action for playing whole roller tappet, in entirety
During assembling, rotation stop locating piece is arranged in the locating slot of Oil pump cylinder, acts the work for preventing whole rotation stop locating piece from rotating in cylinder body
With.
Preferably, the rotation stop locating piece is provided with the open slot for caving inward with the chassis connection sections position.Which acts on
In because U-bracket interference in fairlead, if no open slot, has because of physical intervention in installation process
The deformation for causing, affects the function of U-bracket, therefore arranging open slot prevents deformation, it is ensured that function.
Preferably, the bottom on rear side of the fairlead is provided with and front side identical breach.For the consideration of processability, breach
The both sides of fairlead can be symmetrically disposed in, in breakthrough status.
Preferably, the afterbody can be completely attached to the cannelure, it is also possible to localized contact.By changing aft end
The arc shape in face realizing, in the camber line of tail end face and the identical camber line of cannelure, then the end face and cannelure of afterbody
Completely attach to, contact width is maximum, when the camber line of tail end face is mismatched with the camber line of cannelure, then both are connect for local
Touch, therefore the width of contact arbitrarily can be set according to demand.
Preferably, the assembling of the afterbody and cannelure can be with by the way of nesting, riveting, punching press etc. be different, such as
Ring channel structures are the groove formed by fairlead inner wall depression, and after assembling, afterbody snaps in the interference fit in nesting in groove；
Or, ring channel structures are inwardly to be stamped and formed out the convex tendon that has spacing for a pair by fairlead side wall, and afterbody passes through elastic deformation pressure
Enter between two convex tendons, afterbody is clamped into fixation.
Preferably, the fairlead wall deformation of the groove lower end forms necking, and loading groove in afterbody carries out this work
Sequence, makes U-bracket preferably be fixed.
Preferably, if the fairlead side wall of the groove lower end is provided with dry elasticity breach, block after the press-in of U-bracket afterbody
Firmly.
Preferably, the bottom surface of the base plate can be planar structure, or curved-surface structure.
Preferably, the bottom surface of the base plate is provided with downward projection of boss, and boss surface can be planar structure, it is also possible to
For curved-surface structure.
Preferably, the bottom surface of the base plate is provided with the concave station for caving in upwards, and concave station surface can be planar structure, it is also possible to
For curved-surface structure.
Above-described several bottom surface structures contribute to the work surface with fuel feed pump plunger contact, and work surface can both be bottom
The bottom surface of plate, it is also possible on boss or concave station, boss and concave station can pass through to be stamped to form, and the surface of several work surfaces
Can be plane, or curved surface, these are provided to play more preferable gearing, meet corresponding work requirements.
Preferably, the U-bracket is formed in one and is processed into, the side comprising base plate and base plate both sides.Because machine
In structure, the power of driving cam is directly transferred to fuel feed pump plunger by U-bracket, so the integral thickness of U-bracket is thicker so as to
Bigger load can be carried.
Preferably, the bearing pin roller external member includes bearing pin, roller and needle roller, and needle roller is located between bearing pin and roller, rolling
The effect of pin is to reduce friction, installs rear pin shaft and is set up in the axis hole of the U-bracket, and in whole mechanism being in need not
The suspended state of rigid assembling.The effect of bearing pin roller external member is the power going down for bearing driving cam, its roller face
Width is wider with respect to driving cam, can have slide axially in the case of remain in that enough contacts area.Bearing pin plays peace
The effect that dress is carried, because its both ends of the surface is all in fairlead, will not be skidded off by the stop of fairlead, so need not pass through
The special fixed form such as riveting or snap ring is located, and only needs freely installing for fenestration.
The beneficial effects of the utility model are：1. negligible amounts of part, function are integrated, can effective control integrally weigh
Amount, reduces motion inertia force, reduces friction and wear, improves engine efficiency.The overall structure that simply makes of part form simplifies,
Reduces cost.
2. outline is fairlead, and whole height is respectively provided with guide function, can play guide effect in whole height,
It is more stable when making its work, and integrated model height is shorter.
3. bearing pin uses fenestration installation method, installs without using pressing or revolving the modes such as riveting, and overall is in rotate freely
State, installs simple and convenient, simplifies installation process, can effectively improve assembling beat.
4.U shapes support is installed with cannelure local elastic conjunction mode using base plate with inner room is oriented to, and fairlead is not straight
Connect the load of receiving mechanism operating so that U-bracket side plate can be designed as thicker form without undertaking after assembling function, therefore
Bigger pressure can be born with respect to existing product, be adapted to worse working environment.
5. the rigid connection relation based on U-bracket bottom and fairlead, make fairlead with U-bracket it is common on move down
It is dynamic, it is ensured that the mechanical property of whole external member, reduce noise and reduce abrasion.
6. it is directed to block to be incorporated on U-bracket, reduces number of parts.
7. the bearing pin that free style is installed and the particular design of fairlead, can suitably increase U-bracket thickness, higher to adapt to
Operating pressure.
8. the installation matching relationship of its wing plate and the side plate of U-bracket that pass through fairlead makes U-bracket exist with fairlead
Motion can be made more steady without substantially pendulum gap during motion.
Description of the drawings
Fig. 1 is operating diagram of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the explosive view of Fig. 2.
Fig. 4 is the schematic diagram of embodiment bearing pin assembly relation in this utility model.
Fig. 5 is the schematic diagram of the embodiment one of embodiment U-bracket and fairlead assembly relation in this utility model.
Fig. 6 is the schematic diagram of the embodiment two of embodiment U-bracket and fairlead assembly relation in this utility model.
Fig. 7 is the schematic diagram of the embodiment three of embodiment U-bracket and fairlead assembly relation in this utility model.
Fig. 8 is the schematic diagram of the example IV of embodiment U-bracket and fairlead assembly relation in this utility model.
In figure：1st, fairlead；1.1st, wing plate；1.2nd, cannelure；1.2.1, groove；1.2.2, convex tendon；1.2.3, necking；
1.2.4, elastic breach；1.3rd, breach；1.4th, window；2nd, U-bracket；2.1st, base plate；2.2nd, side plate；2.3rd, axis hole；2.4th, tail
Portion；2.5th, rotation stop locating piece；3rd, bearing pin roller external member；3.1st, bearing pin；3.2nd, roller；3.3rd, needle roller；4th, driving cam；5th, oil pump
Plunger.
Specific embodiment
This utility model is further described below by specific embodiment and accompanying drawing.
Embodiment is：As Figure 1-3, a kind of electromotor high-pressure oil pump roller tappet, for electromotor oil spout system
System, is installed between the driving cam 4 in engine cylinder cover and fuel feed pump plunger 5, and roller tappet includes fairlead 1, U-bracket 2
And bearing pin roller external member 3, fairlead 1 is the columnar structured of global formation, and U-bracket 2 is also global formation, bearing pin roller sleeve
Part 3 is installed on U-bracket 2, and U-bracket 2 is installed in fairlead 1.
The symmetric position of 1 left and right sides wall of fairlead offers window 1.4, and the 1 inwall left and right sides of fairlead is respectively provided with two
Individual wing plate 1.1, U-bracket 2 include base plate 2.1, are respectively provided with one block of side plate 2.2 holded up upwards positioned at 2.1 left and right sides of base plate,
Back side panel 2.2 is installed to be stuck between two wing plates 1.1.Same level position on two blocks of side plates 2.2 is respectively provided with axis hole
2.3, bearing pin roller sleeve part 3 is supported for installing.
1 inwall of fairlead is provided with the cannelure 1.2 of indent, and the bottom on front side of fairlead 1 is provided with breach 1.3, after base plate 2.1
Side is provided with the curved afterbody 2.4 of end face, and the rotation stop locating piece 2.5 of protrusion is provided with front side of base plate 2.1, and after installation, afterbody 2.4 blocks
Enter in cannelure 1.2, during rotation stop locating piece 2.5 is stuck in breach 1.3 and protrude from 1 outside wall surface of fairlead.
With reference to shown in Fig. 4, bearing pin roller external member 3 includes bearing pin 3.1, roller 3.2 and needle roller 3.3, and needle roller 3.3 is located at bearing pin
Between 3.1 and roller 3.2, rear pin shaft 3.1 is installed and is set up in the axis hole 2.3 of the U-bracket 2, in not in whole mechanism
Need rigid assembling and the suspended state that will not be loosened.
Wherein, 1.3 structure of breach in above-mentioned embodiment can be two, and the bottom on rear side of fairlead 1 arranges one
It is individual with front side identical breach 1.3, in breakthrough status.
In embodiment of the present utility model, the arc shape of 2.4 end face of afterbody can have various different changes, reach
End face to afterbody 2.4 is completely attached to cannelure 1.2, or the purpose of localized contact.
Additionally, the base plate 2.1 in embodiment of the present utility model also has various different changes.
The embodiment one of base plate 2.1：Base plate 2.1 is directly offseted with fuel feed pump plunger 5, and the bottom surface of base plate 2.1 can be flat
Face structure, or curved-surface structure.
The embodiment two of base plate 2.1：The bottom surface of base plate 2.1 is provided with downward projection of boss, boss by being stamped and formed out, mechanism
Offseted with fuel feed pump plunger 5 by boss, and boss surface can be planar structure, or curved-surface structure.
The embodiment three of base plate 2.1：The bottom surface of base plate 2.1 is provided with the concave station for caving in upwards, concave station by being stamped and formed out, mechanism
Offseted with fuel feed pump plunger 5 by concave station, and concave station surface can be planar structure, or curved-surface structure.
Additionally, the structure of embodiment intermediate annular groove of the present utility model 1.2 also has various changes, accordingly and afterbody
2.4 fit system also has various different changes, specific as follows：
The embodiment one of cooperation：With reference to shown in Fig. 5, the structure of cannelure 1.2 is installation site on fairlead 1 by interior
The groove 1.2.1 of the recessed formation of wall, afterbody 2.4 and groove 1.2.1 are in nested interference fit.
The embodiment two of cooperation：With reference to shown in Fig. 6, the structure of cannelure 1.2 is installation site on fairlead 1 by
Lower wall passes through trumpet-shaped a pair of convex tendons 1.2.2 in opening being inwardly stamped and formed out, and afterbody 2.4 and convex tendon 1.2.2 are by figure
The mode shown coordinates.
The embodiment three of cooperation：With reference to shown in Fig. 7, the difference with embodiment one is, in the groove 1.2.1 of fairlead 1
Downside is provided with by revolving the necking 1.2.3 that riveting is formed, and is formed necking 1.2.3 and is connected with groove 1.2.1 and to 1 inflection of fairlead
The structure of folding, rivets after being installed by afterbody 2.4 and groove 1.2.1 again and forms, coordinate eventually through the mode of diagram.
The example IV of cooperation：With reference to shown in Fig. 8, it is adaptable to the higher situation of 1 height of fairlead, the area with embodiment one
It is not the elastic breach 1.2.4 by being stamped and formed out to be provided with the downside of the groove 1.2.1 of fairlead 1, specially along groove
1.2.1 lower edge cutting, and by the inside punching press of 1 side wall of part fairlead below cut place, elastic breach 1.2.4 can have
One or more, afterbody 2.4 and elasticity breach 1.2.4 are coordinated by way of diagram.
Specific embodiment of the utility model is the foregoing is only, but architectural feature of the present utility model is not limited to
This, this utility model can be used on similar product, any those skilled in the art in field of the present utility model, institute
The change or modification of work is all covered among the scope of the claims of the present utility model.
Claims (10)
1. a kind of electromotor high-pressure oil pump roller tappet, for electromotor injection system, the drive being installed in engine cylinder cover
Moving cam（4）And fuel feed pump plunger（5）Between, it is characterised in that：The roller tappet includes fairlead（1）, U-bracket（2）And
Bearing pin roller external member（3）, bearing pin roller external member（3）It is installed on U-bracket（2）On, U-bracket（2）It is installed on fairlead（1）
In；
The fairlead（1）The symmetric position of left and right sides wall offers window（1.4）, on the inwall of the left and right sides, it is respectively provided with two
Individual wing plate（1.1）, the U-bracket（2）Comprising base plate（2.1）And it is located at base plate（2.1）The side plate of the left and right sides（2.2）, peace
Dress back side panel（2.2）It is stuck in two wing plates（1.1）Between；
The fairlead（1）Inwall is provided with the cannelure of indent（1.2）, the base plate（2.1）It is curved that rear side is provided with end face
Afterbody（2.4）, afterbody after installation（2.4）Snap in cannelure（1.2）In.
2. a kind of electromotor according to claim 1 high-pressure oil pump roller tappet, it is characterised in that：The U-bracket
（2）For global formation, and integrated rotation stop locating piece（2.5）.
3. a kind of electromotor according to claim 1 high-pressure oil pump roller tappet, it is characterised in that：The fairlead
（1）For global formation, window（1.4）Located at centre position, and it is located at window（1.4）Top and the bottom are columnar structured.
4. a kind of electromotor according to claim 3 high-pressure oil pump roller tappet, it is characterised in that：The wing plate
（1.1）By window（1.4）Interior part material inwardly folds into be formed.
5. a kind of electromotor according to claim 1 high-pressure oil pump roller tappet, it is characterised in that：The U-bracket
（2）Afterbody（2.4）Can be with the fairlead（1）Cannelure（1.2）Completely attach to, it is also possible to localized contact；
The afterbody（2.4）With the cannelure（1.2）Assembly relation can be：
Cannelure（1.2）Structure is by fairlead（1）The groove that inner wall depression is formed（1.2.1）, afterbody after assembling（2.4）Snap in
Groove（1.2.1）In in nested interference fit；
Or, cannelure（1.2）Structure is by fairlead（1）Side wall is inwardly stamped and formed out the convex tendon for having spacing for a pair（1.2.2）,
Afterbody（2.4）Two convex tendons are pressed into by elastic deformation（1.2.2）Between, by afterbody（2.4）Clamp fixation.
6. a kind of electromotor according to claim 5 high-pressure oil pump roller tappet, it is characterised in that：The groove
（1.2.1）The fairlead of lower end（1）Wall deformation forms necking（1.2.3）.
7. a kind of electromotor according to claim 5 high-pressure oil pump roller tappet, it is characterised in that：The groove
（1.2.1）The fairlead of lower end（1）If side wall is provided with dry elasticity breach（1.2.4）.
8. a kind of electromotor according to claim 3 high-pressure oil pump roller tappet, it is characterised in that：The bearing pin roller
External member（3）Including bearing pin（3.1）, roller（3.2）And needle roller（3.3）, needle roller（3.3）Positioned at bearing pin（3.1）And roller（3.2）It
Between, rear pin shaft is installed（3.1）It is set up in the U-bracket（2）Axis hole（2.3）In, in whole mechanism being in need not be rigid
The suspended state of assembling；
The fairlead（1）Window（1.4）The setting of position, to bearing pin（3.1）Axial limiting is carried out, bearing pin is made（3.1）No
Can skid off.
9. a kind of electromotor according to claim 1 high-pressure oil pump roller tappet, it is characterised in that：The base plate
（2.1）Bottom surface can be planar structure, or curved-surface structure.
10. a kind of electromotor according to claim 1 high-pressure oil pump roller tappet, it is characterised in that：The base plate
（2.1）Bottom surface be provided with downward projection of boss, boss surface can be planar structure, or curved-surface structure；
Or, the base plate（2.1）Bottom surface be provided with the concave station for caving in upwards, concave station surface can be planar structure, it is also possible to
For curved-surface structure.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621170776.9U CN206092254U (en) | 2016-10-26 | 2016-10-26 | High -pressure oil pump roller tappet for engine |
| EP16200386.7A EP3315763B1 (en) | 2016-10-26 | 2016-11-24 | High-pressure fuel pump actuator used in engine |
| US15/361,017 US9885330B1 (en) | 2016-10-26 | 2016-11-24 | High-pressure fuel pump actuator used in engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621170776.9U CN206092254U (en) | 2016-10-26 | 2016-10-26 | High -pressure oil pump roller tappet for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206092254U true CN206092254U (en) | 2017-04-12 |
Family
ID=58486146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621170776.9U Withdrawn - After Issue CN206092254U (en) | 2016-10-26 | 2016-10-26 | High -pressure oil pump roller tappet for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206092254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438142A (en) * | 2016-10-26 | 2017-02-22 | 杭州新坐标科技股份有限公司 | High-pressure oil pump roller tappet for engine |
| CN107476916A (en) * | 2017-09-20 | 2017-12-15 | 杭州新坐标科技股份有限公司 | A kind of Novel high-pressure pump tappet |
-
2016
- 2016-10-26 CN CN201621170776.9U patent/CN206092254U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438142A (en) * | 2016-10-26 | 2017-02-22 | 杭州新坐标科技股份有限公司 | High-pressure oil pump roller tappet for engine |
| CN106438142B (en) * | 2016-10-26 | 2018-10-23 | 杭州新坐标科技股份有限公司 | A kind of engine high-pressure oil pump roller tappet |
| CN107476916A (en) * | 2017-09-20 | 2017-12-15 | 杭州新坐标科技股份有限公司 | A kind of Novel high-pressure pump tappet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104471260B (en) | Radial direction bearing foil | |
| KR101741852B1 (en) | Tappet | |
| CN206092254U (en) | High -pressure oil pump roller tappet for engine | |
| EP3249220B1 (en) | A high pressure oil pump roller tappet | |
| KR20070050368A (en) | Switchable cam follower of a valve train of an internal combustion engine | |
| CN105863919A (en) | Roller tappet of high-pressure oil pump | |
| US10408093B2 (en) | Welded high-pressure fuel pump roller tappet | |
| CN101960102A (en) | Rocker arm unit and method of assembling rocker arm unit | |
| CN102619582B (en) | Rocking arm | |
| US9885330B1 (en) | High-pressure fuel pump actuator used in engine | |
| CN104707908B (en) | A kind of hole flanging mold | |
| CN106438142B (en) | A kind of engine high-pressure oil pump roller tappet | |
| CN205618278U (en) | High -pressure oil pump roller tappet | |
| CN105715136A (en) | Door actuator | |
| CN203906618U (en) | Automatic adjusting mechanism for disc brake interval of commercial vehicle | |
| CN206801746U (en) | Engine high-pressure oil pump roller tappet | |
| CN109154211A (en) | With the driven member for receiving the inner cup on supporting plate | |
| CN104526328B (en) | The press-loading device of valve guide bushing | |
| US10047641B2 (en) | Roller lifter | |
| CN207033714U (en) | A kind of high-pressure oil pump roller tappet for engine | |
| CN208870661U (en) | A kind of new engine swing rod | |
| KR20200088221A (en) | Follower mechanism with anti-rotation feature | |
| CN205858543U (en) | A kind of new work engine high-pressure oil pump roller tappet | |
| CN105526167A (en) | Compression mechanism for rotary compressor, and rotary compressor with same | |
| CN100396920C (en) | Frame of hermetic compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170412 Effective date of abandoning: 20181023 |