CN108087056A - A kind of new gate gurgle valve and base construction for detachable machine filter - Google Patents
A kind of new gate gurgle valve and base construction for detachable machine filter Download PDFInfo
- Publication number
- CN108087056A CN108087056A CN201810047208.7A CN201810047208A CN108087056A CN 108087056 A CN108087056 A CN 108087056A CN 201810047208 A CN201810047208 A CN 201810047208A CN 108087056 A CN108087056 A CN 108087056A
- Authority
- CN
- China
- Prior art keywords
- oil
- shared path
- valve
- filter
- gate gurgle
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
Abstract
A kind of new gate gurgle valve and base construction for detachable machine filter, including gate gurgle valve and pedestal, first passage, second channel and machine filter placed cavity are equipped in pedestal, first passage is the oil inlet passage connected with the oil inlet end of oil filter, and second channel is the drainback passage connected with the oil outlet end of oil filter；Second channel includes shared path, draining access and way to cycle oil, the upper end entrance of shared path is connected with the oil outlet end of oil filter, the coaxial connection of upper end entrance of draining access is in the bottom of shared path, the port of export of draining access is pierced by pedestal and is connected with the machine oil in oil sump, the bottom sidewall of shared path offers oil return inlet, and the arrival end of way to cycle oil is connected by oil return inlet in shared path；Gate gurgle valve is installed in the shared path of pedestal.The present invention can realize oil draining function, meanwhile, do not increase the number of channels in base cavity so that the base construction of oil filter is compact, realizes small space layout.
Description
Technical field
The invention belongs to oil filtration fields, are related to a kind of new gate gurgle valve and base construction for detachable machine filter.
Background technology
With the high speed development of automobile industry and the raising of national requirements for environmental protection, oil filter is proposed modularization,
Integrated, lightweight, the requirement of environmental protection, wherein detachable environmental protection machine filter is exactly following developing direction.
Detachable environmental protection machine filter is when replacing filter core, since the high temperature oil in oil filter must be back to oily bottom
Shell, so drain path must be increased on pedestal.Drain path is closed when oil filter works normally, and is only replacing filter
During core, drain path is opened, and makes machine oil quick backflow in oil filter to oil sump.
Domestic usually structure is to newly increase a drain path, due to having existed oil inlet passage on oil filter pedestal
And drainback passage, so causing have three passages in the cavity of pedestal so that pedestal overall structure is larger, and space hold is larger.
The content of the invention
The present invention provides a kind of new draining for detachable machine filter to solve shortcoming of the prior art
Valve and base construction can realize oil draining function, meanwhile, do not increase the number of channels in base cavity so that oil filter
Base construction it is compact, realize small space layout.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：It is a kind of to be let out for the new of detachable machine filter
Fuel tap and base construction, including gate gurgle valve and pedestal,
It is equipped with first passage, second channel and the machine filter placed cavity for mounting oil filter in pedestal, first passage and the
Two passages are located at the lower section of machine filter placed cavity, and first passage is the oil inlet passage connected with the oil inlet end of oil filter, and second
Passage is the drainback passage connected with the oil outlet end of oil filter；
Second channel includes shared path, draining access and way to cycle oil, and shared path is coaxial with oil filter and perpendicular
To setting, the upper end entrance of shared path is connected with the oil outlet end of oil filter, the coaxial company of upper end entrance of draining access
Lead in the bottom of shared path, the diameter of draining access is less than the diameter of shared path, and the port of export of draining access is pierced by pedestal
And connected with the machine oil in oil sump, the bottom sidewall of shared path offers oil return inlet, and the arrival end of way to cycle oil passes through
Oil return inlet is connected in shared path；
It is equipped with to prevent the gate gurgle valve for replacing the oil leakage of oil filter opportunity in the shared path of pedestal；
Baffle is equipped in the central tube of oil filter, baffle is set along the radial direction of central tube, and baffle is fixed on the interior of central tube
Offered on wall, on baffle for for machine oil by through hole, the lower surface of baffle crimps with the top of gate gurgle valve, the top of pedestal
Portion, which is bolted with, safeguards rear cover.
Gate gurgle valve includes spool, compression spring, valve bowl, elastic stopper holder and O-ring seal, and spool is vertically arranged, spool
The thick lower part in top it is thin, the coaxial lower part for being set in spool of valve bowl, valve bowl include annular inner race, annular slab and annular outer ring,
The bottom of annular inner race is fixedly connected with the bottom of annular outer ring by annular slab, and the top of annular inner race is less than annular outer ring
Top, the top of spool are equipped with spring retainer step, compression spring and the coaxial setting of spool, compress upper end and the spring of spring
Limited step top pressure contacts, and compresses the lower end of spring between annular inner race and annular outer ring and is pushed up with the upper surface of annular slab
Press contacts, O-ring seal are mounted on the lower end of spool, and elastic stopper holder includes two elastic pieces and two elastic pieces connect into V
Type structure, the lower end of elastic piece is fixing end, and the upper end of elastic piece is free end, and the fixing end of two elastic pieces is each attached to valve
The lower part of core and the top for being located at O-ring seal, the free end of two elastic pieces is respectively positioned on the lower section of annular slab；
Valve bowl is coaxial mounted on the top of shared path and the valve bowl limited step by being arranged on shared path upper inner
/V, the annular outer ring of valve bowl and the inner wall of shared path are interference fitted, and O-ring seal movable sealing is in draining access, valve
The top of core is contacted with the lower surface of baffle.
The outer diameter of O-ring seal is less than the internal diameter of annular inner race, under elastic stopper holder nature diastole state, two elastic pieces
Free end between horizontal distance be more than annular inner race internal diameter and less than annular outer ring outer diameter.
Using above-mentioned technical proposal, the present invention has the following advantages：
The first passage and the outer shape and size of second channel that are set in the pedestal of the present invention and oil strainer in the prior art
Already existing oil inlet passage is identical with drainback passage on clear device pedestal, therefore, draining access is added in the inside of second channel,
Occupied space can be reduced while oil draining function is realized so that pedestal overall structure size is constant.
Pass through a shared path between way to cycle oil and draining access and the oil outlet end of oil filter in the present invention
Connection, and gate gurgle valve is installed in shared path, when oil filter installs and works normally, gate gurgle valve is closed, and is made
The closing of draining access is obtained, the machine oil after filtering enters along central tube, shared path and way to cycle oil in main oil gallery successively, replaces
During oil filter, gate gurgle valve is opened so that draining access is opened, the machine oil in oil filter successively along central tube, altogether
Oil sump is back to access and draining access, i.e. using the present invention, can keep draining when oil filter works normally
The closed state of access, only when replacing filter core, draining access automatically opens, and makes machine oil quick backflow in oil filter extremely
Oil sump realizes oil draining function.
Due to needing will to safeguard that rear cover is opened when replacing filter core, after opening safeguards rear cover, spring is compressed in gate gurgle valve
Under elastic force effect, spool jacks up upwards, and O-ring seal is moved up with spool, finally deviates from from draining access, leads to draining
Road can automatically open.In this way, operating personnel need not again manually operate gate gurgle valve can realize draining automatically, draining is non-
In time often, the machine oil leakage that draining is brought not in time can be avoided.
Gate gurgle valve in the present invention is used cooperatively with pedestal, when gate gurgle valve is closed, oil filter normal work, more
Change planes oil rectifier when, gate gurgle valve open so that the machine oil in oil filter can be back to oil sump from draining access, keep away
Machine oil leaks outside during oil filter free of replacement, influences engine beauty, simultaneously as when gate gurgle valve is opened, spool can be upward
It is mobile, it will upwards can be jacked up together with oil filter with the baffle of spool tip contact simultaneously, facilitate oil filter more
It changes, operation is more laborsaving.
To sum up, the present invention can realize oil draining function, meanwhile, do not increase the number of channels in base cavity so that machine oil
The base construction of filter is compact, realizes small space layout, and more beautiful.
Description of the drawings
Fig. 1 is the structure diagram of gate gurgle valve in the present invention；
Fig. 2 is the closed mode schematic diagram of gate gurgle valve in the present invention；
Fig. 3 is the opening schematic diagram of gate gurgle valve in the present invention；
Fig. 4 is the close-up schematic view at A in Fig. 2；
Fig. 5 is the close-up schematic view at B in Fig. 3.
Specific embodiment
As shown in Figures 1 to 5, it is of the invention a kind of for detachable machine filter using the left side of Fig. 2 as the left-hand of the present invention
New gate gurgle valve and base construction, including gate gurgle valve and pedestal 18,
First passage, second channel and the machine filter placed cavity 1 for mounting oil filter 6, first passage are equipped in pedestal 18
It is located at the lower section of machine filter placed cavity 1 with second channel, first passage is the oil inlet passage connected with the oil inlet end of oil filter 6
2, second channel is the drainback passage connected with the oil outlet end of oil filter 6；
Second channel includes shared path 3, draining access 4 and way to cycle oil 5, shared path 3 and oil filter 6 it is coaxial and
Vertically arranged, the upper end entrance of shared path 3 is connected with the oil outlet end of oil filter 6, and the upper end entrance of draining access 4 is same
In the bottom of shared path 3, the diameter of draining access 4 is less than the diameter of shared path 3, the outlet of draining access 4 for axial connection
End is pierced by pedestal 18 and is connected with the machine oil in oil sump, and the bottom sidewall of shared path 3 offers oil return inlet 7, and oil return is led to
The arrival end on road 5 is connected by oil return inlet 7 in shared path 3；The outer shape and size of first passage and second channel
It is identical with already existing oil inlet passage and drainback passage on oil filter pedestal in the prior art, therefore, in second channel
Inside add draining access 4, occupied space can be reduced while oil draining function is realized so that pedestal overall structure size is not
Become.
The gate gurgle valve of machine oil leakage when being equipped with to prevent from replacing oil filter 6 in the shared path 3 of pedestal 18；
Baffle 8 is equipped in the central tube of oil filter 6, baffle 8 is set along the radial direction of central tube, and baffle 8 is fixed on central tube
Inner wall on, offered on baffle 8 for for machine oil by through hole, the lower surface of baffle 8 crimps with the top of gate gurgle valve, base
The top of seat 18, which is bolted with, safeguards rear cover 9.Baffle 8 is used for the spool 10 of top pressure gate gurgle valve, simultaneously as being offered on baffle 8
For for machine oil by through hole, the not blocked center cylinder of baffle 8, the machine oil after filtering still can pass through logical on baffle 8
It is flowed out from central tube in hole.
Gate gurgle valve includes spool 10, compression spring 11, valve bowl, elastic stopper holder and O-ring seal 12, spool 10 and vertically sets
It puts, the thick lower part in top of spool 10 is thin, the coaxial lower part for being set in spool 10 of valve bowl, and valve bowl includes annular inner race 13, annular
Plate 15 and annular outer ring 14, the bottom of annular inner race 13 are fixedly connected with the bottom of annular outer ring 14 by annular slab 15, annular
The top of inner ring 13 is less than the top of annular outer ring 14, and the top of spool 10 is equipped with spring retainer step 16, compression spring 11 with
10 coaxial setting of spool, the upper end of compression spring 11 are contacted with 16 top pressure of spring retainer step, compress the lower end position of spring 11
It is contacted between annular inner race 13 and annular outer ring 14 and with the upper surface top pressure of annular slab 15, O-ring seal 12 is mounted on valve
The lower end of core 10, elastic stopper holder includes two elastic pieces 17 and two elastic pieces 17 and connects into V-structure, under elastic piece 17
It holds as fixing end, the upper end of elastic piece 17 is free end, and the fixing end of two elastic pieces 17 is each attached to the lower part of spool 10 simultaneously
Positioned at the top of O-ring seal 12, the free end of two elastic pieces 17 is respectively positioned on the lower section of annular slab 15；Safeguard that rear cover 9 is screwed into
After in pedestal 18, free end and the annular slab 15 of elastic piece 17 are in discrete state；It safeguards that rear cover 9 is opened, compresses spring 11
After rebound, free end and the annular slab 15 of elastic piece 17 are in contact condition.
Valve bowl it is coaxial mounted on the top of shared path 3 and by be arranged on 3 upper inner of shared path valve bowl limit
Position 19 /V of step, so as to conveniently be accurately determined the installation site of valve bowl, staff need not aim at the peace of valve bowl during assembling
Depth is filled, is conveniently operated, the annular outer ring 14 of valve bowl is interference fitted with the inner wall of shared path 3,12 movable sealing of O-ring seal
In draining access 4, the top of spool 10 is contacted with the lower surface of baffle 8.
The outer diameter of O-ring seal 12 is less than the internal diameter of annular inner race 13, under elastic stopper holder nature diastole state, two bullets
Property piece 17 free end between horizontal distance be more than annular inner race 13 internal diameter and less than annular outer ring 14 outer diameter.
The assembling instruction of gate gurgle valve：O-ring seal 12 is mounted on to the lower end of spool 10, the upper end for compressing spring 11 is pushed up
It is pressed at the spring retainer step 16 on 10 top of spool, the lower end for compressing spring 11 and spool 10 is then passed through into valve from top to bottom
The annular inner race 13 of bowl, in the process, the free end of two elastic pieces 17 is inwardly compressed, so as to pass through the annular of valve bowl
Inner ring 13, two elastic pieces 17 after the annular inner race 13 of valve bowl all by automatically reseting, and the free end of elastic piece 17 and ring
The lower surface top pressure contact of shape plate 15, at this point, compression spring 11 is in compressive state so that gate gurgle valve is generally in equilibrium-like
State.
The installation instructions of gate gurgle valve and oil filter 6：It is first that the valve bowl in gate gurgle valve is coaxial mounted on shared path 3
Top and be interference fitted the annular outer ring 14 of valve bowl and the inner wall of shared path 3,12 direction of O-ring seal in gate gurgle valve
Draining access 4；Then oil filter 6 is put into from top to bottom in the machine filter placed cavity 1 of pedestal 18, will finally safeguards rear cover 9
It is screwed into pedestal 18, oil filter 6 is enclosed in pedestal 18 and safeguards between rear cover 9.
When oil filter 6 is installed and worked normally, gate gurgle valve is closed, and Fig. 2 show the closed state of gate gurgle valve,
Detailed process is：
When safeguarding that rear cover 9 moves down, safeguard that rear cover 9 drives oil filter 6 to move down, the baffle 8 in central tube is therewith
It moves down, baffle 8 drives the spool 10 being in contact with it to move down, and is most mounted on the O-ring seal of 10 lower end of spool at last
In the draining access 4 of 12 press-in pedestals 18, O-ring seal 12 closes draining access 4, and oil filter 6 works normally, filtering
During machine oil afterwards is successively along central tube, shared path 3 and way to cycle oil 5 into main oil gallery.In the process, spring 11 is compressed
It is constantly in compressive state.
When replacing oil filter 6, gate gurgle valve is opened, and Fig. 3 show the opening of gate gurgle valve, and detailed process is：
It will safeguard that rear cover 9 is opened, and safeguard that rear cover 9 will move up, the pressure that baffle 8 is applied to spool 10 reduces, in gate gurgle valve
Compression spring 11 is sprung back, and spool 10 is jacked up upwards, O-ring seal 12 is moved up with spool 10, finally from draining access 4
Abjection, draining access 4 are opened, and the machine oil in oil filter 6 flows back successively along central tube, shared path 3 and draining access 4
To oil sump.Machine oil leaks outside when can avoid replacing oil filter 6, influences engine beauty.
Simultaneously as spool 10 moves up, can simultaneously by with the baffle 8 of 10 tip contact of spool together with oil filtration
Device 6 jacks up upwards, facilitates the replacement of oil filter 6.
The present embodiment is every according to this hair not to the limitation of works in any form such as shape, material, the structures of the present invention
Any simple modification, equivalent change and modification that bright technical spirit makees above example, belongs to the technology of the present invention side
The protection domain of case.
Claims (3)
1. a kind of new gate gurgle valve and base construction for detachable machine filter, it is characterised in that：Including gate gurgle valve and pedestal,
It is equipped with first passage, second channel and the machine filter placed cavity for mounting oil filter in pedestal, first passage and the
Two passages are located at the lower section of machine filter placed cavity, and first passage is the oil inlet passage connected with the oil inlet end of oil filter, and second
Passage is the drainback passage connected with the oil outlet end of oil filter；
Second channel includes shared path, draining access and way to cycle oil, and shared path is coaxial with oil filter and perpendicular
To setting, the upper end entrance of shared path is connected with the oil outlet end of oil filter, the coaxial company of upper end entrance of draining access
Lead in the bottom of shared path, the diameter of draining access is less than the diameter of shared path, and the port of export of draining access is pierced by pedestal
And connected with the machine oil in oil sump, the bottom sidewall of shared path offers oil return inlet, and the arrival end of way to cycle oil passes through
Oil return inlet is connected in shared path；
It is equipped with to prevent the gate gurgle valve for replacing the oil leakage of oil filter opportunity in the shared path of pedestal；
Baffle is equipped in the central tube of oil filter, baffle is set along the radial direction of central tube, and baffle is fixed on the interior of central tube
Offered on wall, on baffle for for machine oil by through hole, the lower surface of baffle crimps with the top of gate gurgle valve, the top of pedestal
Portion, which is bolted with, safeguards rear cover.
2. a kind of new gate gurgle valve and base construction for detachable machine filter according to claim 1, it is characterised in that：
Gate gurgle valve includes spool, compression spring, valve bowl, elastic stopper holder and O-ring seal, and spool is vertically arranged, and the top of spool is thick
Lower part is thin, the coaxial lower part for being set in spool of valve bowl, and valve bowl includes annular inner race, annular slab and annular outer ring, annular inner race
Bottom be fixedly connected with the bottom of annular outer ring by annular slab, the top of annular inner race is less than the top of annular outer ring, valve
The top of core is equipped with spring retainer step, compression spring and the coaxial setting of spool, compresses the upper end of spring and spring retainer platform
Rank top pressure contacts, and compresses the lower end of spring between annular inner race and annular outer ring and is connect with the upper surface top pressure of annular slab
It touches, O-ring seal is mounted on the lower end of spool, and elastic stopper holder includes two elastic pieces and two elastic pieces connect into V-type knot
Structure, the lower end of elastic piece is fixing end, and the upper end of elastic piece is free end, and the fixing end of two elastic pieces is each attached to spool
Lower part and the top for being located at O-ring seal, the free end of two elastic pieces is respectively positioned on the lower section of annular slab；
Valve bowl is coaxial mounted on the top of shared path and the valve bowl limited step by being arranged on shared path upper inner
/V, the annular outer ring of valve bowl and the inner wall of shared path are interference fitted, and O-ring seal movable sealing is in draining access, valve
The top of core is contacted with the lower surface of baffle.
3. a kind of new gate gurgle valve and base construction for detachable machine filter according to claim 2, it is characterised in that：
The outer diameter of O-ring seal is less than the internal diameter of annular inner race, under elastic stopper holder nature diastole state, the free end of two elastic pieces
Between horizontal distance be more than annular inner race internal diameter and less than annular outer ring outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047208.7A CN108087056A (en) | 2018-01-18 | 2018-01-18 | A kind of new gate gurgle valve and base construction for detachable machine filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047208.7A CN108087056A (en) | 2018-01-18 | 2018-01-18 | A kind of new gate gurgle valve and base construction for detachable machine filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108087056A true CN108087056A (en) | 2018-05-29 |
Family
ID=62183127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810047208.7A Pending CN108087056A (en) | 2018-01-18 | 2018-01-18 | A kind of new gate gurgle valve and base construction for detachable machine filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108087056A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386342A (en) * | 2018-08-14 | 2019-02-26 | 东风朝阳朝柴动力有限公司 | With the oil filter of function of draining the oil of uncapping |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060069636A (en) * | 2004-12-17 | 2006-06-22 | 현대자동차주식회사 | Drain valve structure |
| JP2007205251A (en) * | 2006-02-01 | 2007-08-16 | Tokyo Roki Co Ltd | Valve structure of relief valve for oil filter |
| CN103075225A (en) * | 2012-12-31 | 2013-05-01 | 东风汽车股份有限公司 | Engine oil filter assembly for engine |
| CN204140159U (en) * | 2014-09-19 | 2015-02-04 | 潍柴动力股份有限公司 | Replaceable cartridge formula filter cleaner |
| CN206860251U (en) * | 2017-06-01 | 2018-01-09 | 江苏常发农业装备股份有限公司 | A kind of arrangement of machine oil relief valve |
| CN207761744U (en) * | 2018-01-18 | 2018-08-24 | 平原滤清器有限公司 | A kind of novel gate gurgle valve and base construction for detachable machine filter |
-
2018
- 2018-01-18 CN CN201810047208.7A patent/CN108087056A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060069636A (en) * | 2004-12-17 | 2006-06-22 | 현대자동차주식회사 | Drain valve structure |
| JP2007205251A (en) * | 2006-02-01 | 2007-08-16 | Tokyo Roki Co Ltd | Valve structure of relief valve for oil filter |
| CN103075225A (en) * | 2012-12-31 | 2013-05-01 | 东风汽车股份有限公司 | Engine oil filter assembly for engine |
| CN204140159U (en) * | 2014-09-19 | 2015-02-04 | 潍柴动力股份有限公司 | Replaceable cartridge formula filter cleaner |
| CN206860251U (en) * | 2017-06-01 | 2018-01-09 | 江苏常发农业装备股份有限公司 | A kind of arrangement of machine oil relief valve |
| CN207761744U (en) * | 2018-01-18 | 2018-08-24 | 平原滤清器有限公司 | A kind of novel gate gurgle valve and base construction for detachable machine filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386342A (en) * | 2018-08-14 | 2019-02-26 | 东风朝阳朝柴动力有限公司 | With the oil filter of function of draining the oil of uncapping |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108087056A (en) | A kind of new gate gurgle valve and base construction for detachable machine filter | |
| CN207761744U (en) | A kind of novel gate gurgle valve and base construction for detachable machine filter | |
| CN110421883A (en) | A kind of compacting machine for nuclear power station Radwastes treatment | |
| CN111089752A (en) | Deep water stratified sampling device | |
| DE2243081B1 (en) | Sealing device | |
| CN208214734U (en) | A kind of press fitting of pack alloy and leak test unit equipment | |
| CN109556874A (en) | A kind of aero-engine pressurized strut traffic intensity experimental rig | |
| CN100467863C (en) | Plunger water pump | |
| CN203050840U (en) | Engine oil filter assembly for engine | |
| CN214577479U (en) | Oil valve plunger assembly and high-pressure oil pump | |
| CN200985813Y (en) | Engine oil pressure-limiting oilchannel | |
| CN210195721U (en) | Reverse filling tool | |
| CN100582540C (en) | Limit flow hydraulic valve | |
| CN210396935U (en) | Novel main oil gallery pressure relief device | |
| CN109159380B (en) | Injection mold double-piston needle valve driving device | |
| CN211082231U (en) | PTFE check valve for metering pump | |
| US1399169A (en) | Machine for forming oil-cakes | |
| CN107655675B (en) | A kind of combined type packing ring device for detecting performance | |
| CN113267380B (en) | Water supply network fixed point water quality testing device | |
| CN212429416U (en) | Oil return filter | |
| CN207829967U (en) | Check valve module for oil filter | |
| CN204327229U (en) | A kind of diesel engine lubricating oil filler cap | |
| CN215595871U (en) | Plunger pump | |
| CN114151221B (en) | Integrated press-fitting structure of engine cylinder head cover built-in PCV valve | |
| CN210647118U (en) | Guide pillar lubricating device for precision die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |