CN206522195U - A kind of fuel pressurization composite piston - Google Patents
A kind of fuel pressurization composite piston Download PDFInfo
- Publication number
- CN206522195U CN206522195U CN201621466062.2U CN201621466062U CN206522195U CN 206522195 U CN206522195 U CN 206522195U CN 201621466062 U CN201621466062 U CN 201621466062U CN 206522195 U CN206522195 U CN 206522195U
- Authority
- CN
- China
- Prior art keywords
- piston
- area
- size
- displacement measurement
- charged
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of fuel pressurization composite piston, including fitted seal area, displacement measurement area and size piston contact area, the center of top in the fitted seal area is hung with charged piston, charged piston includes piston only and the housing being matched therewith, space below the fitted seal area is to be equiped with displacement transducer in displacement measurement area, and displacement measurement area；The lower section in displacement measurement area of institute is size piston contact area, and the bottom center in the size piston contact area is equipped with valve piston, and valve piston is located on same vertical line with charged piston, and the two ends of the size piston contact area in the horizontal direction have additional fuel oil baffle plate.The utility model can avoid the fuel oil leaked along charged piston to continue the possibility down leaked by umbrella crown again completely, the mixing that will not occur fuel oil and driving servo oil, because waste oil will not be produced, improve system effectiveness；The number of parts is reduced, the complexity of pressurized part system is reduced.
Description
Technical field
The utility model is related to Diesel Engine Technique Field, and in particular to a kind of fuel pressurization composite piston.
Background technology
On marine low speed diesel engine, fuel oil is supplied with depression formation, by supercharging mode fuel pressurization to specifically
Pressure, is sprayed by fuel injector.On current diesel engine, fuel pressurization part is mainly made up of fuel pressurization piston, umbrella crown,
Umbrella crown is threadedly coupled with charged piston, during fuel pressurization, and the fuel oil that high pressure fuel is leaked along charged piston can lead to
Cross umbrella crown to continue down to leak, in order to prevent fuel oil and servo oil mixing, newly-increased secondary baffle is needed in the big piston of fuel pressurization
Prevent fluid from mixing with sealing ring.In addition, the installation of secondary baffle is not easy to follow-up maintenance, answering for whole system is also increased
Miscellaneous degree.
Utility model content
The purpose of this utility model is to overcome existing oil-burning machine to prevent fuel leakage sets up part from adding entirety
System complexity it is not enough there is provided a kind of multi-functional fuel pressurization piston, solve the fuel oil of high-pressure leakage by umbrella crown after
The defect of continuous leakage, the fuel pressurization piston that a variety of functions are integrated in one avoids leakage fuel oil and servo oil mixing completely
Possibility, and reduce the complexity of fuel pressurization system.
To achieve the above object, the utility model provides following technical scheme：
A kind of fuel pressurization composite piston, including fitted seal area, displacement measurement area and size piston contact area, it is described to match somebody with somebody
The center of top for closing seal area is hung with charged piston, and charged piston includes piston only and the housing being matched therewith, described
Space below fitted seal area is to be equiped with displacement transducer in displacement measurement area, and displacement measurement area；
The lower section in displacement measurement area of institute is size piston contact area, and the bottom center in the size piston contact area is erected
There is valve piston, valve piston is located on same vertical line with charged piston, the two ends of the size piston contact area in the horizontal direction
Have additional fuel oil baffle plate.
It is used as further program of the utility model：
The charged piston is the tapered cylindrical tube shape structure in one end, and valve piston is identical with its structure, and size, which is less than, to be increased
Press piston, the tapered one end of two-piston opposite end each other.
It is used as further program of the utility model：
Some annular grooves are offered on the housing in the fitted seal area.
It is used as further program of the utility model：
The fitted seal area, displacement measurement area, fuel oil baffle plate and size piston contact area are same overall integral type
Structure.
Compared with prior art, the beneficial effects of the utility model are：The apparatus structure is simple, reasonable in design, can be with complete
It is complete to avoid the fuel oil leaked along charged piston from continuing the possibility down leaked by umbrella crown again, will not occur fuel oil and driving is watched
The mixing of oil is taken, because waste oil will not be produced, system effectiveness is improved；And the device is integral type structure, by improving
Structure causes the more convenient practicality of the device, reduces the number of parts, thus reduces the complicated journey of pressurized part system
Degree.
Brief description of the drawings
Fig. 1 is a kind of structural representation of fuel pressurization composite piston；
Fig. 2 is a kind of sectional view of fuel pressurization composite piston.
Marginal data：
1- fitted seals area, 11- annular grooves, 2- displacement measurements area, 3- charged pistons, 4- valve pistons, 5- size piston contacts
Area, 6- fuel oil baffle plates.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer in Fig. 1-2, the utility model embodiment, a kind of fuel pressurization composite piston, including fitted seal area 1,
Displacement measurement area 2 and size piston contact area 5, the center of top in fitted seal area 1 are hung with charged piston 3, and charged piston 3 is wrapped
Piston only and the housing being matched therewith are included, it is intended that piston only is engaged with its housing, can be low-voltage fuel
High pressure is pressurized to, in addition, whole fitted seal area 1 also ensures that it has certain leakage while preventing fuel oil from largely leaking
The piston for lubricating high-speed motion is measured, the space of the lower section of fitted seal area 1 is displacement measurement area 2, and displacement measurement area 2 is built-in
Provided with displacement transducer, it is intended that monitoring the stroke of valve piston 4 and feeding back to booster, it is ensured that the normal work of booster
There is provided high pressure fuel is provided；
The lower section in displacement measurement area 2 is size piston contact area 5, and the bottom center in size piston contact area 5 is equipped with small
Piston 4, valve piston 4 is located on same vertical line with charged piston 3, it is intended that the region is the contact zone of moving piston
Part oil film can be formed inside domain, the transmission for completing power, and the region, can be protected when 3 unexpected stress of charged piston
Valve piston 4 is protected, 5 two ends in the horizontal direction of size piston contact area have additional fuel oil baffle plate 6, it, which is acted on, is stopped from cooperation
The fuel oil that seal area 1 is leaked, prevents fuel oil and driving servo oil mixing from producing waste oil, improves the efficiency of whole system.
Charged piston 3 is the tapered cylindrical tube shape structure in one end, and valve piston 4 is identical with its structure, and size is less than supercharging
Piston 3, the tapered one end of two-piston opposite end each other, it is intended that one end of charged piston 3 and valve piston 4 is processed
Into certain angle of taper, it is easy to the monitoring of displacement transducer, and then diagnosis is provided for the normal work of booster.
Some annular grooves 11 are offered on the housing in fitted seal area 1, it is intended that storing part fuel oil to play lubrication
Effect.
Fitted seal area 1, displacement measurement area 2, fuel oil baffle plate 6 and size piston contact area 5 are same overall integral type
Structure.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (4)
1. a kind of fuel pressurization composite piston, it is characterised in that lived including fitted seal area (1), displacement measurement area (2) and size
Fill in contact zone (5), the center of top of the fitted seal area (1) is hung with charged piston (3), and charged piston (3) includes piston
Space below body and the housing being matched therewith, the fitted seal area (1) is displacement measurement area (2), and displacement measurement
Displacement transducer is equiped with area (2)；
The lower section of institute displacement measurement area (2) is size piston contact area (5), in the bottom of the size piston contact area (5)
Centre is equipped with valve piston (4), and valve piston (4) is located on same vertical line with charged piston (3), the size piston contact area
(5) two ends in the horizontal direction have additional fuel oil baffle plate (6).
2. a kind of fuel pressurization composite piston according to claim 1, it is characterised in that the charged piston (3) is one
The tapered cylindrical tube shape structure in end, valve piston (4) is identical with its structure, and size is less than charged piston (3), and two-piston is tapered
One end opposite end each other.
3. a kind of fuel pressurization composite piston according to claim 1, it is characterised in that the fitted seal area (1)
Some annular grooves (11) are offered on housing.
4. a kind of fuel pressurization composite piston according to claim 1, it is characterised in that the fitted seal area (1), position
Shift measurement area (2), fuel oil baffle plate (6) and size piston contact area (5) are same overall integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466062.2U CN206522195U (en) | 2016-12-29 | 2016-12-29 | A kind of fuel pressurization composite piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466062.2U CN206522195U (en) | 2016-12-29 | 2016-12-29 | A kind of fuel pressurization composite piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206522195U true CN206522195U (en) | 2017-09-26 |
Family
ID=59889347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621466062.2U Active CN206522195U (en) | 2016-12-29 | 2016-12-29 | A kind of fuel pressurization composite piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206522195U (en) |
-
2016
- 2016-12-29 CN CN201621466062.2U patent/CN206522195U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206522195U (en) | A kind of fuel pressurization composite piston | |
| CN103256137A (en) | Supporting mechanism of wet-type cylinder sleeve | |
| CN201963863U (en) | Liquid sealing type piston of air cylinder | |
| CN205805898U (en) | The fluid end of high pressure reciprocating pump | |
| CN103206418A (en) | Double-acting pressurizer special for water pressure testing machine for steel pipes | |
| CN206377078U (en) | A kind of novel gas-liquid is pressurized cylinder assembly | |
| CN204003757U (en) | A kind of oil hydraulic cylinder without back cylinder cover | |
| CN201903434U (en) | Leakage testing and sealing device using kerosene for lower rack and lower oil pan of generator | |
| CN201144738Y (en) | Piston and piston ring assembly | |
| CN203570449U (en) | High-pressure oil spraying type sealing piston | |
| CN202251956U (en) | Floating gap seal with high speed, high frequency and high abrasion resistance | |
| CN101581259A (en) | Method for establishing piston ring mechanism for sealing single-ring piston engine | |
| CN202520688U (en) | Rolling machine hydraulic oil cylinder capable of prolonging service life | |
| CN202202977U (en) | Piston ring of gasoline engine | |
| CN201672051U (en) | Gas-sealing piston ring and piston | |
| CN203409164U (en) | Liquid charging structure of hydraulic forging press | |
| CN214533266U (en) | Piston of diesel engine | |
| CN217440419U (en) | Oil leakage structure of hydraulic loading cylinder of coal mill | |
| CN203239652U (en) | Double-acting supercharger special for steel pipe hydrostatic testing machine | |
| CN209469863U (en) | A kind of governor master matches guiding valve oil leak monitoring and collection device | |
| CN217234170U (en) | Novel cydariform tooth oil supply structure | |
| CN202768816U (en) | Leakproof piston ring set | |
| CN217784468U (en) | Union nut forging with good fracture resistance | |
| CN209430300U (en) | A kind of piston pin | |
| CN202883300U (en) | Piston ring assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |