CN109707545A - A kind of hand pump fuel oil prefilter main casing assembly - Google Patents
A kind of hand pump fuel oil prefilter main casing assembly Download PDFInfo
- Publication number
- CN109707545A CN109707545A CN201910067297.6A CN201910067297A CN109707545A CN 109707545 A CN109707545 A CN 109707545A CN 201910067297 A CN201910067297 A CN 201910067297A CN 109707545 A CN109707545 A CN 109707545A
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- China
- Prior art keywords
- oil
- main casing
- oil outlet
- check valve
- diaphragm
- Prior art date
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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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/16—Feeding by means of driven pumps characterised by provision of personally-, e.g. manually-, operated pumps
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of hand pump fuel oil prefilter main casing assemblies comprising main casing, vertical tube, setting is in the intracorporal oil inlet of the main casing, oil system out, unidirectional valve group and the press device that the main casing body side surface is arranged in；The oil system out includes the first oil outlet and the second oil duct and the second oil outlet and the first oil duct that are correspondingly arranged；The press device includes handle, diaphragm and the liner lid set gradually from outside to inside on a main housing；Guide pipe is provided in the liner lid；The unidirectional valve group includes the first check valve between the second oil duct and the first oil outlet, the second one-way valve between diaphragm and the first oil outlet and the third check valve between diaphragm and the second oil outlet；Gas vent and exhaust bolt compatible with the gas vent, gasket are provided on main casing between first oil outlet and second one-way valve.Structure of the invention is compact, guarantees oil supply system efficient work reliability, while cost of upkeep is low.
Description
Technical field
The invention belongs to automobile engine prefilter technical fields, and in particular to a kind of hand pump fuel oil prefilter main casing is total
At.
Background technique
It is increasingly strict due to vehicular engine emission regulation demands in recent years, will necessarily cause fuel oil prefilter into one
Step is improved.The high efficient and reliable of oil supply system plays a crucial role the performance of engine.So to guarantee to supply
Oil system efficiently reliably works, it is necessary to more improve the structure and function of fuel oil prefilter.
Summary of the invention
Technical problem to be solved by the present invention lies in a kind of hand pump fuel oil prefilter main casing assembly is provided, structure is tight
It gathers, guarantees oil supply system efficient work reliability, while easy to operate, cost of upkeep is low.
To achieve the above object, technical solution of the present invention includes main casing, and it is intracorporal perpendicular to be vertically arranged in the main casing
Pipe, setting is in the intracorporal oil inlet of the main casing, oil system out, unidirectional valve group and the pressing that the main casing body side surface is arranged in
Device；
The oil inlet is located at the top of oil system and unidirectional valve group；
The oil system out includes positioned at the first oil outlet of the vertical tube side and the second oil duct and being correspondingly arranged at described
The second oil outlet and the first oil duct of the vertical tube other side；The oil inlet, the first oil outlet and the second oil outlet are arranged in parallel,
Oil inlet is vertically arranged with the first oil duct and the second oil duct respectively；
The press device includes handle, diaphragm and the liner lid set gradually from outside to inside on a main housing；The liner lid
It is inside provided with guide pipe, the guiding inside pipe wall is slidably connected with the guide post on main casing outer wall；The guide post and guiding
The periphery of pipe is set with spring；
The unidirectional valve group includes the first check valve between the second oil duct and the first oil outlet, goes out with first positioned at diaphragm
Second one-way valve between hydraulic fluid port and the third check valve between diaphragm and the second oil outlet；
It is provided with gas vent on main casing between first oil outlet and second one-way valve and is adapted with the gas vent
Exhaust bolt, gasket.
Further, the vertical tube includes the conduit taken over and be arranged in below the adapter tube, and the conduit includes connection
First passage in the adapter tube bottom, is connected to the second channel of adapter tube side；The lower part of first passage is provided with balance hole,
The balance hole is located at below second channel.
Further, pump chamber is formed between the diaphragm and main casing；
First check valve between the second oil duct and second one-way valve,
Second one-way valve is set between pump chamber and the first oil outlet, third check valve be set to pump chamber and the second oil outlet it
Between, second oil outlet is between third check valve and the first oil duct；
The second one-way valve is oppositely arranged with the first check valve, and its opening direction is opposite, and the third check valve is opened
It is in the same direction for opening direction and the first check valve.
Further, the main casing lower inside is provided with occupy-place box, and the occupy-place box is located at below vertical tube.
Further, the occupy-place box is closed shell, and periphery is provided with two or more boss, described to account for
Position box is coupled by the boss and main casing intracoelomic cavity.
Further, the co-walled setting in the side of the first passage and second channel.
Further, it is provided with platen outside the handle, the end periphery of the diaphragm is provided with a circle boss, described convex
Platform is assemblied in the seal groove on main casing.
Further, first oil outlet and the second oil outlet are coaxial-symmetrical distribution, and the first oil outlet goes out with second
It is spaced apart between hydraulic fluid port.
Good effect of the present invention is as follows:
The present invention presses handle in use, first open exhaust bolt repeatedly, and the gas in filter is made to pass sequentially through conduit, the
One oil duct, third check valve, second one-way valve reach gas vent, to be discharged other than filter.When handle is pressed, first is single
It is closed to valve, second one-way valve unlatching, third closed check valve, the gas in pump chamber is discharged；When handle is by spring reset,
First check valve, second one-way valve are closed, and third check valve is opened, and gas is sucked pump chamber, thus the manual pump oil row realized
Gas process.When gas vent has oily spilling outward, gas vent is blocked using exhaust bolt and gasket, later starting hair
Motivation, after engine operation, oil transportation pump work forms negative pressure to the first oil outlet and pumps, and the first check valve is opened at this time,
Filter can be discharged after adapter tube, first passage and balance hole enter the second oil duct in the gas of filter upper end, transport in vehicle
Pressure in capable process inside Real-time Balancing filtering keeps vehicle operation more stable and reliable.
Detailed description of the invention
Fig. 1 is longitudinal schematic cross-sectional view of the invention；
Fig. 2 is lateral schematic cross-sectional view of the invention；
Fig. 3 is the portion the A enlarged diagram of Fig. 1 of the present invention;
Fig. 4 is the portion the B enlarged diagram of Fig. 1 of the present invention;
Fig. 5 is the schematic diagram of occupy-place box of the present invention.
In attached drawing, 1 main casing, the first oil outlet of 1-2, the second oil outlet of 1-3, the first oil duct of 1-4, the second oil duct of 1-5,1-
6 guide posts, 1-7 seal groove, 1-8 pit, 1-9 shoulder, 1-10 gas vent, 2 adapter tubes, 3 conduits, 3-1 first passage, 3-2 second
Channel, 3-3 limit film, 3-4 balance hole, 4 occupy-place boxes, 4-1 positive stop lug boss, 5 first check valves, 6 second one-way valves, 7 third lists
To valve, 8 springs, 9 liner lids, 9-1 guide pipe, 10 diaphragms, 10-1 seal boss, 11 handles, 12 platens, 13 pump chambers, 14 exhausts
Screw, 15 gaskets.
Specific embodiment
The present invention program is further described and is explained with reference to the accompanying drawing.
As shown in Figs. 1-5, the present invention includes main casing 1, the vertical tube being vertically arranged in the main casing 1, is arranged in institute
The oil inlet 1-1 in main casing 1 is stated, out oil system, unidirectional valve group and the press device that 1 side of main casing is set；
The oil inlet 1-1 is located at the top of oil system and unidirectional valve group；
The oil system out includes being located at the first oil outlet 1-2 and the second oil duct 1-5 of the vertical tube side and being correspondingly arranged
The second oil outlet 1-3 and the first oil duct 1-4 in the vertical tube other side；The oil inlet 1-1, the first oil outlet 1-2 and
Two oil outlet 1-3 are arranged in parallel, and oil inlet 1-1 is vertically arranged with the first oil duct 1-4 and the second oil duct 1-5 respectively；First goes out
Hydraulic fluid port 1-2 and the second oil outlet 1-3 is symmetrical arranged；
It is spaced apart between the first oil outlet 1-2 and the second oil duct 1-5；
The first oil duct 1-4 and the second oil duct 1-5 are connected to vertical tube；
The press device includes the handle 11, diaphragm 10 and liner lid 9 being successively vertically arranged on main casing 1 from outside to inside；
The handle 11 is movably arranged on main casing 1, and diaphragm 10 plays the role of sealing.
Guide pipe 9-1 is provided in the liner lid 9, the guide pipe 9-1 is vertically set on 9 inner wall center of liner lid
Place, the guide pipe 9-1 inner wall are slidably connected with the guide post 1-6 on 1 outer wall of main casing, and guide pipe 9-1 is sleeved on guide post
The outside of 1-6, guide pipe 9-1 are adapted with guide post 1-6；The periphery of the guide post 1-6 and guide pipe 9-1 is set with spring
8, one end of the spring 8 is connect with main casing 1, and the other end of spring 8 is connect with liner lid 9；
The guide pipe 9-1 inner wall and guide post 1-6 are clearance fit.
The unidirectional valve group includes the outlet positioned at the second oil duct 1-5 and the first check valve between the first oil outlet 1-2
5, the second one-way valve 6 between diaphragm 10 and the first oil outlet 1-2 and between diaphragm 10 and the second oil outlet 1-3
Third check valve 7；The second one-way valve 6 is located between diaphragm 10 and the first check valve 5；
First check valve 5, second one-way valve 6 and third check valve 7 are vertically installed in inside main casing 1；
Be provided on main casing 1 between the first oil outlet 1-2 and second one-way valve 6 gas vent 1-10 and with the exhaust
The compatible exhaust bolt 14 of hole 1-10 and gasket 15 block gas vent 1-10 using exhaust bolt 14, are vented spiral shell
It is provided with gasket 15 between 14 and gas vent 1-10 of nail, plays sealing function.
Further, the vertical tube includes adapter tube 2 and the conduit 3 that is arranged in below the adapter tube 2,2 lower end of adapter tube
It is internally provided with the card slot for connecting with conduit 3.The adapter tube 2 is attached with conduit 3 using snap, the conduit
3 include the first passage 3-1 for being connected to 2 bottom of adapter tube, is connected to the second channel 3-2 of 2 side of adapter tube；First passage 3-
1 lower part is provided with balance hole 3-4, and the balance hole 3-4 is located at below second channel 3-2.The side of the balance hole 3-4 is
Inside first passage 3-1, the other side of balance hole 3-4 is connected to by main casing 1 with second channel 3-2, the first oil duct 1-4, the
Two oil duct 1-5 connection.
The second channel 3-2 is connected to by main casing 1 with the first oil duct 1-4 and the second oil duct 1-5；
The bottom of the second channel 3-2 is provided with limit film 3-3, and the limit film 3-3 can make the installation Shi Yutai downwards of conduit 3
Shoulder 1-9 cooperation carries out axial limiting.
Adapter tube 2 is the upward extension pipeline of first passage 3-1, and the adapter tube 2 is vertically arranged in the centre bit of main casing 1
Set place.
The bottom of the first passage 3-1 is fixed with the pit 1-8 interference fit on main casing 1, further, institute
State formation pump chamber 13 between diaphragm 10 and main casing 1；
For first check valve 5 between the second oil duct 1-5 and second one-way valve 6, second one-way valve 6 is set to pump chamber 13 and first
Between oil outlet 1-2, third check valve 7 is set between pump chamber 13 and the second oil outlet 1-3, second oil outlet 1-3
Between third check valve 7 and the first oil duct 1-4；
The second one-way valve 6 is oppositely arranged with the first check valve 5, and its opening direction is opposite, the third check valve 7
Opening direction and the first check valve 5 are in the same direction.
First check valve 5 to 11 direction of handle open, to 3 direction of conduit by；Further, inside the main casing 1
Lower section is provided with occupy-place box 4, and the occupy-place box 4 is located at below vertical tube.
Further, the occupy-place box 4 is closed shell, and 4 periphery of occupy-place box is provided with two or more limits
Position boss 4-1, the occupy-place box 4 are coupled by the positive stop lug boss 4-1 and 1 inner cavity of main casing, and occupy-place box 4 is made to form axis
To limit.The occupy-place box 4 can play the role of occupy-place, to reduce filter internal capacity, reach reduction capacity, the row of reduction
Gas number.Occupy-place box is to reduce the gas for needing to be discharged for reducing main casing lower volume, can be thus vented less
Amount, to reduce exhaust number, main casing internal volume is small, and the gas of receiving is just few, needs further exist for the gas of discharge
Just few, exhaust number in this way is just few.
Further, first passage 3-1 and second channel 3-2 is set for the eccentric, the first passage 3-1 and second channel
The co-walled setting in the side of 3-2.
Further, platen 12, the liner lid 9, diaphragm 10, handle 11 and platen 12 are provided with outside the handle 11
After successively assembling, fixation is attached using three or three or more bolts and main casing 1.
The end periphery of the diaphragm 10 is provided with circle seal boss a 10-1, the seal boss 10-1 and is assemblied in main casing
It in seal groove 1-7 on body 1, is compressed using platen 12, forms pressure seal.
The compression of the platen 12 is realized using two or more bolts.
Further, the first oil outlet 1-2 and the second oil outlet 1-3 is coaxial-symmetrical distribution, the first oil outlet 1-2
It is spaced apart between the second oil outlet 1-3.
In new filter before use, needing internal gas excluding a part, while gas is gone out, fuel oil is pumped to filter
In clear device, in filter after gas outflow, inside generates negative pressure, this draft acts on oil inlet, oil inlet meeting after passing through filter core
Oil pipe by connecting fuel tank pumps oil, reaches in filter, can be effectively by the sky in filter using the present invention
Gas discharge.The present invention in use, first open exhaust bolt 14, the first oil outlet 1-2 is communicated with the atmosphere, then presses hand repeatedly
Handle 11 is exhausted, specifically, first check valve 5 is closed, second one-way valve 6 is opened, third check valve 7 when pressing handle 11
It closes, handle 11 inwardly moves under the pressure effect of hand, makes 13 smaller volume of pump chamber, the gas in pump chamber 13 is successively led to
Second one-way valve 6 is crossed to be discharged from gas vent 1-10；When handle 11 is resetted by spring 8, three individual event valves can be formed simultaneously negative
The draft of pressure, adjusts the switch state of these three individual event valves, and the unlatching of individual event valve leans on thrust or draft suffered by it to determine to open
Or close, specifically, the first check valve 5 is closed, and second one-way valve 6 is closed, and third check valve 7 is opened, and gas is led to from second
Road 3-2, the first oil duct 1-4, third check valve 7 suck pump chamber 13, thus the manual pump oil exhaust process realized.First passage 3-
Whether 1 have gas or oil to come by balance hole 3-4, determines depending on draft suffered by balance hole 3-4, if conduit 3
Draft when second channel 3-2 can be resetted completely with counterbalance spring 8 or turner is made to filter outlet, then not having in balance hole
Gas reserves, and otherwise has gas outflow.When gas vent 1-10 has oily spilling outward, exhaust bolt 14 and gasket 15 are utilized
Gas vent 1-10 is blocked, starts engine later, after engine operation, oil transportation pump work is to the first oil outlet 1-2 shape
Pump at negative pressure, the first check valve 5 is opened at this time, the gas of filter upper end can by adapter tube 2, first passage 3-1 and
Filter is discharged after entering the second oil duct 1-5 in balance hole 3-4, pressure during vehicle operation inside Real-time Balancing filtering
Power keeps vehicle operation more stable and reliable.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of hand pump fuel oil prefilter main casing assembly, it is characterised in that: it includes main casing (1), is vertically arranged in described
Oil inlet (1-1) in the main casing (1) is arranged, out oil system in vertical tube in main casing (1), unidirectional valve group and sets
Set the press device in the main casing (1) side；
The oil inlet (1-1) is located at the top of oil system and unidirectional valve group；
The oil system out includes the first oil outlet (1-2) and the second oil duct (1-5) and correspondence positioned at the vertical tube side
The second oil outlet (1-3) and the first oil duct (1-4) of the vertical tube other side are set；It is the oil inlet (1-1), first fuel-displaced
Mouthful (1-2) and the second oil outlet (1-3) are arranged in parallel, oil inlet (1-1) respectively with the first oil duct (1-4) and the second oil duct
(1-5) is vertically arranged；
The press device includes handle (11), diaphragm (10) and the liner lid being successively set on main casing (1) from outside to inside
(9)；It is provided with guide pipe (9-1) in the liner lid (9), guide pipe (9-1) inner wall and leading on main casing (1) outer wall
Xiang Zhu (1-6) is slidably connected；The periphery of the guide post (1-6) and guide pipe (9-1) are set with spring (8)；
The unidirectional valve group includes the first check valve (5) between the second oil duct (1-5) and the first oil outlet (1-2), position
Second one-way valve (6) between diaphragm (10) and the first oil outlet (1-2) and it is located at diaphragm (10) and the second oil outlet (1-3)
Between third check valve (7)；
Be provided on main casing (1) between first oil outlet (1-2) and second one-way valve (6) gas vent (1-10) and with
The compatible exhaust bolt (14) of the gas vent (1-10), gasket (15).
2. a kind of hand pump fuel oil prefilter main casing assembly according to claim 1, it is characterised in that: the vertical tube includes
The conduit (3) of (2) and setting below the adapter tube (2) is taken over, the conduit (3) includes being connected to described adapter tube (2) bottom
First passage (3-1), be connected to the second channel (3-2) of adapter tube (2) side；The lower part of first passage (3-1) is provided with flat
It weighs hole (3-4), the balance hole (3-4) is located at below second channel (3-2).
3. a kind of hand pump fuel oil prefilter main casing assembly according to claim 1, it is characterised in that: the diaphragm (10)
Pump chamber (13) are formed between main casing (1)；
First check valve (5) between the second oil duct (1-5) and second one-way valve (6),
Second one-way valve (6) is set between pump chamber (13) and the first oil outlet (1-2), and third check valve (7) is set to pump chamber
(13) between the second oil outlet (1-3), second oil outlet (1-3) is located at third check valve (7) and the first oil duct (1-4)
Between；
The second one-way valve (6) is oppositely arranged with the first check valve (5), and its opening direction is opposite, and the third is unidirectional
The opening direction and the first check valve (5) of valve (7) are in the same direction.
4. a kind of hand pump fuel oil prefilter main casing assembly according to claim 1, it is characterised in that: the main casing
(1) lower inside is provided with occupy-place box (4), and the occupy-place box (4) is located at below vertical tube.
5. a kind of hand pump fuel oil prefilter main casing assembly according to claim 4, it is characterised in that: the occupy-place box
It (4) is closed shell, periphery is provided with two or more boss (4-1), and the occupy-place box (4) passes through the boss
(4-1) is coupled with main casing (1) inner cavity.
6. a kind of hand pump fuel oil prefilter main casing assembly according to claim 1, it is characterised in that: the first passage
The co-walled setting in side of (3-1) and second channel (3-2).
7. a kind of hand pump fuel oil prefilter main casing assembly according to claim 1, it is characterised in that: the handle (11)
It is provided with platen (12) outside, the end periphery of the diaphragm (10) is provided with a circle boss (10-1), boss (10-1) dress
Assigned in the seal groove (1-7) on main casing (1).
8. a kind of hand pump fuel oil prefilter main casing assembly according to claim 1, it is characterised in that: described first is fuel-displaced
Mouth (1-2) and the second oil outlet (1-3) are coaxial-symmetrical distribution, the interval of the first oil outlet (1-2) and the second oil outlet (1-3)
It opens up and sets.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910067297.6A CN109707545A (en) | 2019-01-24 | 2019-01-24 | A kind of hand pump fuel oil prefilter main casing assembly |
| CN201910941916.XA CN110486203B (en) | 2019-01-24 | 2019-09-30 | Main shell assembly of hand pump fuel prefilter |
| CN201910943490.1A CN111472904A (en) | 2019-01-24 | 2019-09-30 | Exhaust structure of fuel prefilter |
| CN201921655697.0U CN210977726U (en) | 2019-01-24 | 2019-09-30 | Exhaust structure of fuel prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910067297.6A CN109707545A (en) | 2019-01-24 | 2019-01-24 | A kind of hand pump fuel oil prefilter main casing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109707545A true CN109707545A (en) | 2019-05-03 |
Family
ID=66262650
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910067297.6A Pending CN109707545A (en) | 2019-01-24 | 2019-01-24 | A kind of hand pump fuel oil prefilter main casing assembly |
| CN201910943490.1A Pending CN111472904A (en) | 2019-01-24 | 2019-09-30 | Exhaust structure of fuel prefilter |
| CN201921655697.0U Active CN210977726U (en) | 2019-01-24 | 2019-09-30 | Exhaust structure of fuel prefilter |
| CN201910941916.XA Active CN110486203B (en) | 2019-01-24 | 2019-09-30 | Main shell assembly of hand pump fuel prefilter |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910943490.1A Pending CN111472904A (en) | 2019-01-24 | 2019-09-30 | Exhaust structure of fuel prefilter |
| CN201921655697.0U Active CN210977726U (en) | 2019-01-24 | 2019-09-30 | Exhaust structure of fuel prefilter |
| CN201910941916.XA Active CN110486203B (en) | 2019-01-24 | 2019-09-30 | Main shell assembly of hand pump fuel prefilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN109707545A (en) |
Cited By (1)
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| CN114458497A (en) * | 2022-02-16 | 2022-05-10 | 一汽解放汽车有限公司 | Fuel filter and engine oil supply system |
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| CN109707545A (en) * | 2019-01-24 | 2019-05-03 | 河北亿利橡塑集团有限公司 | A kind of hand pump fuel oil prefilter main casing assembly |
| CN111997802B (en) * | 2020-07-23 | 2021-12-07 | 安徽江淮汽车集团股份有限公司 | Oil filter pressure device |
| CN114396348A (en) * | 2021-12-31 | 2022-04-26 | 无锡亿利环保科技有限公司 | Conduit oil outlet throttling structure and fuel prefilter shell assembly |
| CN114458495A (en) * | 2022-02-16 | 2022-05-10 | 一汽解放汽车有限公司 | Fuel filter upper cover, fuel filter and engine oil supply system |
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2019
- 2019-01-24 CN CN201910067297.6A patent/CN109707545A/en active Pending
- 2019-09-30 CN CN201910943490.1A patent/CN111472904A/en active Pending
- 2019-09-30 CN CN201921655697.0U patent/CN210977726U/en active Active
- 2019-09-30 CN CN201910941916.XA patent/CN110486203B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458497A (en) * | 2022-02-16 | 2022-05-10 | 一汽解放汽车有限公司 | Fuel filter and engine oil supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111472904A (en) | 2020-07-31 |
| CN210977726U (en) | 2020-07-10 |
| CN110486203A (en) | 2019-11-22 |
| CN110486203B (en) | 2021-02-26 |
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Application publication date: 20190503 |