CN207777038U - A kind of diesel fuel feed system exhaust-valve - Google Patents
A kind of diesel fuel feed system exhaust-valve Download PDFInfo
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- CN207777038U CN207777038U CN201721815936.5U CN201721815936U CN207777038U CN 207777038 U CN207777038 U CN 207777038U CN 201721815936 U CN201721815936 U CN 201721815936U CN 207777038 U CN207777038 U CN 207777038U
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- valve body
- piston rod
- valve
- feed system
- diesel fuel
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Abstract
The utility model provides a kind of diesel fuel feed system exhaust-valve, including valve body, lower contact, the piston rod in valve body, the piston set on piston rod bottom, lower contact is connect with valve body lower end, lower contact is equipped with oil inlet, piston base is equipped with sealing ring, seal receptacle step is equipped in valve body, sealing ring is sitting on seal receptacle step, valve body is equipped with emptying channel, it is blocked by valve body in the emptying channel, emptying channel is connected to fuel tank, and valve body and piston rod top are detachably connected, and O-shaped ring is equipped between valve body and piston rod.This diesel fuel feed system exhaust-valve, the air of fuel oil supply system can be excluded rapidly, in air discharge process, since emptying channel is connected to fuel tank, it avoids outside fuel oil outflow diesel fuel feed system, trickles down on the other component shell of each parts of engine or workover rig, prevent fuel consumption, environmental pollution is avoided, equipment is improved and empties efficiency.It is simple in structure, convenient for disassembly and assembly, highly practical.
Description
Technical field
The utility model belongs to diesel engine fuel oil supply technical field, and in particular to a kind of diesel fuel feed system emptying
Valve.
Background technology
The normal work of Fuel Feeding System for Diesel Engine system is one of the important leverage that diesel engine runs well, and fuel system
It is interior because leakproofness decline to be mixed into air again be the permanent fault of fuel oil supply system.So in debugging or fuel supply system
It unites the maintenance stage, air is inevitable work in removal system.
The method of conventional debugging is：Injection pump, the bleed screw of diesel fuel filter are opened, or is unscrewing system
After the middle highest oil circuit connection bolt in absolute position, hand oil pump is pressed, extracts the fluid of fuel tank out, the air in system is squeezed out,
Until the fluid overflowed is without oily foam, bleeder screw or connection bolt are then tightened.
The defect of the above method is：In air discharge process, because by each component facility of fuel system and oil circuit shape
Influence, the air in fluid can not possibly exclude rapidly, but with the flowing of fluid, and gently hoist flowing, finally with oil
Hydrorrhea goes out, and during air-discharging, just there are many outside fuel oil outflow system, trickles down in its of each parts of engine or workover rig
On his component enclosure, waste of fuel is caused, when so that environment is polluted, and encountering open fire, is caused a hidden trouble to equipment safety.
Utility model content
The purpose of the utility model is to overcome the problems of the above-mentioned prior art, provide a kind of effective, rapid exclusion combustion
The air of oily feed system, prevents fuel consumption, avoids environmental pollution, improves the air bleeder valve of equipment emptying efficiency.
The technical scheme that the utility model is provided is as follows：
A kind of diesel fuel feed system exhaust-valve, including valve body, lower contact, the piston rod in valve body, be set to live
The piston of stopper rod bottom, the lower contact are connect with valve body lower end, and the lower contact is equipped with oil inlet, the piston base dress
There is sealing ring, seal receptacle step is equipped in the valve body, the sealing ring is sitting on seal receptacle step, and the valve body is equipped with row
Empty channel, the emptying channel are blocked by valve body, and the emptying channel is connected to fuel tank, and the valve body and piston rod top are detachable
Connection is equipped with O-shaped ring between the valve body and piston rod.
The valve body and piston rod top are connected through a screw thread.
The piston rod part is equipped with handwheel.
The valve body is connected with piston rod top by tooth socket, and the top of the piston rod is equipped with block, the block diameter
Identical as valve diameter, the block lower face is equipped with the first tooth socket, and the valve body upper surface is equipped with the second tooth socket, the valve body
Tooth socket is equipped with to switch.
The valve body and piston rod top are connected by a snap, and the piston rod part is hinged with lock, on the valve body
Equipped with latch hook, the lock can block latch hook.
The lower contact is equipped with external screw thread.
The utility model has the beneficial effects that：
This diesel fuel feed system exhaust-valve provided by the utility model, can exclude rapidly fuel oil supply system
Air, since emptying channel 7 is connected to fuel tank, avoids outside fuel oil outflow diesel fuel feed system in air discharge process,
It trickles down on the other component shell of each parts of engine or workover rig, prevents fuel consumption, environmental pollution, raising is avoided to set
Standby emptying efficiency.It is simple in structure, convenient for disassembly and assembly, highly practical.
It is described in further details below in conjunction with attached drawing.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1, handwheel；2, piston rod；3, O-shaped ring；4, sealing ring；5, oil inlet；6, lower contact；7, channel is emptied；
8, valve body；9, seal receptacle step.
Specific implementation mode
Embodiment 1：
It present embodiments provides a kind of diesel fuel feed system exhaust-valve, including valve body 8, lower contact 6, is set to valve body 8
Interior piston rod 2, the piston set on 2 bottom of piston rod, the lower contact 6 connect with 8 lower end of valve body, are set in the lower contact 6
There are oil inlet 5, the piston base that sealing ring 4 is housed, is equipped with seal receptacle step 9 in the valve body 8, the sealing ring 4 is sitting in
On seal receptacle step 9, the valve body 8 is equipped with emptying channel 7, which is blocked by valve body 8,7 He of emptying channel
Fuel tank is connected to, and the valve body 8 and 2 top of piston rod are detachably connected, and O-shaped ring 3 is equipped between the valve body 8 and piston rod 2.
The course of work：
The lower contact 6 of diesel fuel feed system exhaust-valve is connected to oil circuit pipeline, oil inlet 5 passes through high-pressure pump and oil
Road pipeline connection, the oil circuit pipeline other end connect fuel tank.When oil-burning machine works normally, diesel oil passes through oil inlet 5.
When needing emptying, valve body 8 and 2 top of piston rod are separated, pulling up piston rod 2, so that sealing ring 4 is left close
Seat stand rank 9 is sealed, emptying channel 7 is exposed, the oil stream with air is flowed back by emptying channel 7 in diesel fuel feed system pipeline
To fuel tank.Since O-shaped ring 3 is bonded with 8 inner wall of valve body, sealing function is played, oil stream is prevented to enter 3 top of O-shaped ring.
After the completion of emptying, pushing down on piston rod 2 makes sealing ring 4 be sitting in seal receptacle step 9, and emptying channel 7 is hidden by valve body 8
Gear, valve body 8 is connected with 2 top of piston rod, closes emptying channel 7.
Embodiment 2：
On the basis of embodiment 1, a kind of diesel fuel feed system emptying as shown in Figure 1 is present embodiments provided
Valve, the valve body 8 and 2 top of piston rod are connected through a screw thread.
In the present embodiment, 2 top of the piston rod is equipped with handwheel 1.Handwheel 1 can be easy to operation.Lower contact is equipped with
External screw thread, it is convenient to be connect with oil circuit pipeline.
As shown in Figure 1, diesel fuel feed system exhaust-valve includes piston rod 2, valve body 8,6 piston rod 2 of lower contact and valve
8 top of body is connected, and 8 lower part of valve body is connected with lower contact 6.Handwheel 1, external screw thread, O-shaped ring 3, sealing ring are arranged at 2 top of piston rod
4, O-shaped ring 3 is installed below external screw thread, and sealing ring 4 is mounted on the bottom of piston.Valve body 8 is by internal thread, emptying channel 7, close
Seat, the composition of lower contact 6 are sealed, emptying channel 7 is mounted on seal receptacle or more, and seal receptacle step 9 is arranged at 6 top of lower contact.
Piston rod 2 is connected with valve body 8, and for piston rod 2 with 8 connection screw thread of valve body when releasing, sealing ring 4 leaves seal seat
Rank 9 opens emptying channel 7, and with 8 connection screw thread of valve body when linking closely, sealing ring 4 is bonded piston rod 2 with seal receptacle step 9, is closed
Close emptying channel 7.When piston rod 2 is connected with valve body 8, O-shaped ring 3 is bonded with 8 inner wall of valve body, plays sealing function.Work as opening
When emptying channel 7, O-shaped ring 3 is bonded with 8 inner wall of valve body, plays sealing function, and oil stream is prevented to enter 3 top of O-shaped ring.
Embodiment 3：
On the basis of embodiment 1, a kind of diesel fuel feed system exhaust-valve, the valve body 8 are present embodiments provided
It is connected by tooth socket with 2 top of piston rod, the top of the piston rod 2 is equipped with block, the block diameter and 8 diameter phase of valve body
Together, the block lower face is equipped with the first tooth socket, and 8 upper surface of the valve body is equipped with the second tooth socket, and the valve body 8 is equipped with tooth socket
Switch.
The course of work：
When needing emptying, tooth socket switch is pressed downwards, and the first tooth socket and the second tooth socket separate, and pull up piston later
Bar 2 makes sealing ring 4 leave seal receptacle step 9, exposes emptying channel 7, the oil of air is carried in diesel fuel feed system pipeline
Stream flows back into fuel tank by emptying channel 7.Since O-shaped ring 3 is bonded with 8 inner wall of valve body, play sealing function, prevent oil stream into
Enter 3 top of O-shaped ring.
After the completion of emptying, pushing down on piston rod 2 makes sealing ring 4 be sitting in seal receptacle step 9, and emptying channel 7 is hidden by valve body 8
Gear, the first tooth socket and the engagement of the second tooth socket, make valve body 8 be connected with 2 top of piston rod, close emptying channel 7.
Embodiment 4：
On the basis of embodiment 1, a kind of diesel fuel feed system exhaust-valve, the valve body 8 are present embodiments provided
It is connected by a snap with 2 top of piston rod, 2 top of the piston rod is hinged with lock, and the valve body 8 is equipped with latch hook, described
Lock can block latch hook.
The course of work：
When needing emptying, lock is broken from latch hook, pulling up piston rod 2 later makes sealing ring 4 leave seal seat
Rank 9 exposes emptying channel 7, and the oil stream with air flows back into oil by emptying channel 7 in diesel fuel feed system pipeline
Case.Since O-shaped ring 3 is bonded with 8 inner wall of valve body, sealing function is played, oil stream is prevented to enter 3 top of O-shaped ring.
After the completion of emptying, pushing down on piston rod 2 makes sealing ring 4 be sitting in seal receptacle step 9, and emptying channel 7 is hidden by valve body 8
Gear, lock is stuck on latch hook, valve body 8 is made to be connected with 2 top of piston rod, closes emptying channel 7.
There is no the known technology or conventional means of the part described in detail and the structure category industry in present embodiment, here
It does not describe one by one.
It is exemplified as above be only to the utility model for example, not constituting to the scope of protection of the utility model
Limitation, within every design same or analogous with the utility model all belongs to the scope of protection of the present invention.
Claims (6)
1. a kind of diesel fuel feed system exhaust-valve, it is characterised in that：Including valve body（8）, lower contact（6）, be set to valve body（8）
Interior piston rod（2）, be set to piston rod（2）The piston of bottom, the lower contact（6）With valve body（8）Lower end connects, and is connect under described
Head（6）It is equipped with oil inlet（5）, the piston base is equipped with sealing ring（4）, the valve body（8）It is interior to be equipped with seal receptacle step
（9）, the sealing ring（4）It is sitting in seal receptacle step（9）On, the valve body（8）It is equipped with emptying channel（7）, the emptying channel
（7）By valve body（8）It blocks, the emptying channel（7）It is connected to fuel tank, the valve body（8）And piston rod（2）Top detachably connects
It connects, the valve body（8）And piston rod（2）Between be equipped with O-shaped ring（3）.
2. a kind of diesel fuel feed system exhaust-valve according to claim 1, it is characterised in that：The valve body（8）With
Piston rod（2）Top is connected through a screw thread.
3. a kind of diesel fuel feed system exhaust-valve according to claim 2, it is characterised in that：The piston rod（2）
Top is equipped with handwheel（1）.
4. a kind of diesel fuel feed system exhaust-valve according to claim 1, it is characterised in that：The valve body（8）With
Piston rod（2）Top is connected by tooth socket, the piston rod（2）Top be equipped with block, the block diameter and valve body（8）Diameter
Identical, the block lower face is equipped with the first tooth socket, the valve body（8）Upper surface is equipped with the second tooth socket, the valve body（8）On set
There is tooth socket switch.
5. a kind of diesel fuel feed system exhaust-valve according to claim 1, it is characterised in that：The valve body（8）With
Piston rod（2）Top is connected by a snap, the piston rod（2）Top is hinged with lock, the valve body（8）It is equipped with latch hook,
The lock can block latch hook.
6. according to a kind of diesel fuel feed system exhaust-valve of claim 1-5 any one of them, it is characterised in that：Under described
Connector（6）It is equipped with external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721815936.5U CN207777038U (en) | 2017-12-22 | 2017-12-22 | A kind of diesel fuel feed system exhaust-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721815936.5U CN207777038U (en) | 2017-12-22 | 2017-12-22 | A kind of diesel fuel feed system exhaust-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777038U true CN207777038U (en) | 2018-08-28 |
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ID=63228151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721815936.5U Active CN207777038U (en) | 2017-12-22 | 2017-12-22 | A kind of diesel fuel feed system exhaust-valve |
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| Country | Link |
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| CN (1) | CN207777038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997802A (en) * | 2020-07-23 | 2020-11-27 | 安徽江淮汽车集团股份有限公司 | Oil filter pressure device |
-
2017
- 2017-12-22 CN CN201721815936.5U patent/CN207777038U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997802A (en) * | 2020-07-23 | 2020-11-27 | 安徽江淮汽车集团股份有限公司 | Oil filter pressure device |
| 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 |
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