CN107956891A - Boat diesel engine seals indicator valve with face - Google Patents
Boat diesel engine seals indicator valve with face Download PDFInfo
- Publication number
- CN107956891A CN107956891A CN201710950613.5A CN201710950613A CN107956891A CN 107956891 A CN107956891 A CN 107956891A CN 201710950613 A CN201710950613 A CN 201710950613A CN 107956891 A CN107956891 A CN 107956891A
- Authority
- CN
- China
- Prior art keywords
- valve
- face
- valve rod
- indicator
- sealing
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 239000001996 bearing alloy Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 13
- 238000005259 measurement Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A kind of boat diesel engine seals indicator valve with face, include valve body, valve rod, valve seat, valve rod guide sleeve, connector and bushing, wherein, valve rod guide sleeve is arranged between the valve body and valve rod and the valve rod can be axially moveable in valve rod guide sleeve, connector is by being threaded into the lower port of the inner cavity of the valve body, the upper end of the connector is equipped with upper faying face, the middle part of the inner cavity of valve seat press-in valve body, the bottom of the valve seat is equipped with lower faying face, the lower part of valve rod is equipped with lower sealing surface and upper sealing surface, the level-one face fitted seal of the lower sealing surface and the upper faying face close-fitting contact forming face of connector sealing indicator valve, the two level face fitted seal of the lower faying face close-fitting contact forming face of sealing surface and valve seat sealing indicator valve on this.Present invention employs two-stage surface seal structure, valve opening direction is opposite with air motion direction, and the valve rod self-locking mechanism outside valve body is employed, high temperature and high pressure gas corrosion is avoided, has the advantages that sealing performance is excellent, reliability is high, service life is long and safe for operation.
Description
Technical field
The present invention relates to the measuring apparatus of diesel engine, and in particular to a kind of boat diesel engine face of inner pressure of air cylinder measurement
Indicator valve is sealed, belongs to Diesel Engine Technique Field.
Background technology
Indicator valve is installed in the cylinder head of marine diesel, and each cylinder installs one, shows work(device for connecting.Show
The effect of work(device mainly measures the pressure in cylinder and draws pressure curve, obtains cylinder interior gas Pressure Variation,
The foundation repaired as diesel engine performance adjustment and fault diagnosis, is the essential element of boat diesel engine.
With the continuous improvement of Shipping cost-effectiveness requirement, the performance indicator of boat diesel engine is continually strengthened, its cylinder
Interior maximum outbreak pressure and mean effective pressure are continuously improved, so for directly showing work(with what high temperature, gases at high pressure contacted
Valve proposes increasingly higher demands.It is required that indicator valve under various operating modes can stable structure, accurately control high temperature, high pressure gas
The mobility status of body, service life length, and it is easy to operation.The structure of indicator valve is to showing that the performance of work(device has direct shadow
Ring, if indicator valve goes wrong, it will influence the accuracy for showing work(device measurement cylinder pressure, the pressure curve of drafting is not true
It is real, so as to cause the error to cylinder performance and breakdown judge.
The structure of existing indicator valve such as Fig. 1, it is illustrated that indicator valve include valve body 1, valve seat 2, valve head 3, valve shaft 4, wedge 5,
Bushing 6, handwheel 7, protective cap 8 and flat spring 9.Valve seat 2 is pressed at the sealing of 1 interior lower end of valve body；Valve shaft 4 penetrates valve body 1, under
Portion is provided with pilot hole；3 top of valve head is provided with guiding axis, and some flat springs 9 are nested with the guiding axis of the valve head 3, this is led
Into the pilot hole of axis insertion valve shaft 4, it matches with pilot hole, and valve head 3 is with being nested with some flat springs 9 one on guiding axis
Rise in the pilot hole of press-in valve shaft 4 and make shell nosing treatment, the bottom of valve head 3 be mutually in close contact with the aperture of valve seat 2 play it is close
Envelope acts on, so that flat spring 9 is subject to the extruding of valve head 3 and valve shaft 4, one pretightning force of generation, plays tune for the closing in of 4 lower part of valve shaft
The effect of sealing force between whole valve head 3 and valve seat 2；Wedge 5 is inserted in valve shaft 4, and screws in 1 upper end of valve body and play sealing to valve body 1
Effect；Handwheel 7 is installed on the upper end of valve shaft 4, and the switch of indicator valve is controlled by rotation hand wheel 7.
It can be seen that, there are following problem for the existing technology by analysis：
1st, using line contact sealing structure, sealing area deficiency, and the opening square of valve head 3 between valve head 3 and valve seat 2
To consistent with the airflow direction of high temperature and high pressure gas, if using for a long time, after when work, is subject to gas to impact, valve head 3 and valve seat 2
Between be also easy to produce abrasion, reduce sealing performance, cause gas to be leaked from this contact position, so as to influence to show that work(device measures cylinder pressure
The accuracy of power.
2nd, valve head 3 carries out exterior self-locking by flat spring 9, and the flat spring 9 and high temperature and high pressure gas directly contact, easily by corruption
Lose and cause to fail.
3rd, the switch of indicator valve is completed by rotation hand wheel 7, but due to high vibration caused by diesel engine operation, should
Handwheel 7 is easy to loosen, and make it that valve shaft 4 freely moves up and down, so as to cause larger security risk.
The content of the invention
Problem to be solved by this invention is to loosen and produce for valve body gas leakage existing for existing indicator valve structure and handwheel
The insecure phenomenon of switch, there is provided a kind of boat diesel engine seals indicator valve with face, and using two-stage sealing structure, work(is shown in improvement
Sealing means between the on-off mode of valve, valve rod and valve seat and valve rod and connector, the effective leakproofness for improving indicator valve
Energy and safety in operation.
The present invention is to solve above technical problem by the following technical programs：
A kind of boat diesel engine seals indicator valve with face, includes valve body, valve rod and bushing, and the valve inner is equipped with and passes through
Lead to upper and lower inner cavity, the side of the valve body is equipped with valve outlet, and the valve outlet is described by the middle part of inner cavity described in interior pipeline connection
Bushing is connected to the upper port of the inner cavity by thread seal, and the valve rod passes through the endoporus of the bushing and stretches into the inner cavity
Lower part；It is characterized in that, the face sealing indicator valve has further included valve seat, valve rod guide sleeve and connector, the valve rod guide sleeve
It is arranged between the valve body and valve rod, and the valve rod can be axially moveable in valve rod guide sleeve, and the connector passes through
It is threaded into the lower port of the inner cavity of the valve body, the upper end of the connector is equipped with upper faying face, described in the valve seat press-in
The middle part of the inner cavity of valve body, the bottom of the valve seat are equipped with lower faying face, and the lower part of the valve rod is equipped with lower sealing surface and upper close
The upper faying face close-fitting contact of front cover, the lower sealing surface and the connector forms the level-one face of the face sealing indicator valve
Fitted seal, lower faying face close-fitting contact of sealing surface and the valve seat forms the two level of the face sealing indicator valve on this
Face fitted seal.
Preferably, the upper end of the valve rod is equipped with threaded portion, which stretches out the top of the bushing and be provided with
The coupling mechanism force that lock washer and locking nut, the lock washer and locking nut produce can adjust level-one face fitted seal
With the leakproofness of two level face fitted seal.
Preferably, sealing indicator valve in the face has further included special spanner, and the special spanner is by rotating the locking
Nut is to control the switch of face sealing indicator valve and exterior self-locking is carried out to the valve rod.
Preferably, the protective cap for protecting screw thread is installed at the valve outlet of the valve body.
Preferably, the valve rod is made of the alloy steel material of high-temperature-resistant high-pressure-resistant, and the valve seat uses high temperature resistant
Nickel-base high-temperature alloy material be made.
Preferably, the upper faying face and lower sealing surface are inverted cone surface, and the lower faying face and upper sealing surface are the conical surface.
Compared with prior art, the present invention has following beneficial effect：
1) two sealed structures are formd between valve rod and connector and valve rod and valve seat, and the sealing of this two-stage is all adopted
Contacted with face, there is wider sealing area, thus effectively prevent after existing line contact sealing structure works long hours because
Valve body gas leakage caused by fatigue wear, therefore face of the present invention sealing indicator valve has the advantages that sealing performance is excellent.
2) it is that face sealing indicator valve is opened that valve rod, which moves downward, this direction of motion upward with air-flow is on the contrary, therefore air-flow
Pressure can further strengthen leakproofness between valve rod and valve seat.
3) self-locking is carried out to valve rod using the locking nut outside valve body and lock washer, it is straight avoids retaining mechanism
Connect and contacted with high temperature and high pressure gas, thus improve the life and reliability of face sealing indicator valve.
Brief description of the drawings
Fig. 1 is the structure diagram of existing indicator valve.
Fig. 2 is the structure diagram of the present invention.
Fig. 3 is the schematic diagram of special spanner.
Fig. 4 is the structure diagram of valve rod.
Fig. 5 is the partial enlarged view of Fig. 2.
In figure,
1- valve bodies, 2- valve seats, 3- valve heads, 4- valve shafts, 5- wedges, 6- bushings, 7- handwheels, 8- protective caps, 9- flat springs,
1a- valve bodies, 2a- connectors, the upper faying faces of 2a1-, 3a- seals, 4a- valve rods, 4a1- lower sealing surfaces, the upper sealing surfaces of 4a2-,
4a3- bar portions, 4a4- threaded portions, 5a- valve seats, faying face under 5a1-, 6a- valve rod guide sleeves, 7a- bushings, 8a- lock washers, 9a-
Locking nut, 10a- special spanners, 11a- protective caps, pipeline in 12a-.
Embodiment
With reference to specific embodiment, the present invention is described in detail.It should be pointed out that the common skill to this area
For art personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These should all belong to this
The protection domain of invention.
Fig. 2 and Fig. 3 are please referred to, the boat diesel engine face sealing indicator valve described in the present embodiment includes valve body
1a, connector 2a, valve rod 4a, valve seat 5a, valve rod guide sleeve 6a, bushing 7a, lock washer 8a, locking nut 9a, special spanner 10a
With protective cap 11a.
The valve body 1a is internally provided with the inner cavity above and below perforation, and the side of valve body 1a is equipped with valve outlet, which leads to
Cross the middle part that interior pipeline 12a connects the inner cavity of the valve body 1a.The valve that the protective cap 11a is installed on the valve body 1a sides goes out
At mouth position, play the role of protection exit screw thread.
The bushing 7a is connected to the upper port of the inner cavity of the valve body 1a by thread seal.
The valve seat 5a is pressed into the middle part of the inner cavity of the valve body 1a, in said inner tube road 12a and the valve body 1a
The lower section of chamber junction, referring to Fig. 5, the bottom of valve seat 5a is equipped with lower faying face 5a1, the valve seat 5a uses resistance to height
Warm, corrosion-resistant and wear-resisting material is made, such as nickel base superalloy, extraordinary can meet high temperature and pressure and high friction
Job requirement.
The connector 2a by being threaded into the lower port of the inner cavity of the valve body 1a, connector 2a and valve body 1a it
Between be provided with seal 3a, to seal；The upper end of the connector 2a is equipped with upper faying face 2a1, sees Fig. 5, center
Equipped with the central through hole that faying face 2a1 is connected on this, as the face sealing indicator valve valve inlet.Work(is shown in the face sealing
The cylinder head that valve passes through connector 2a connection diesel engines.
The valve rod 4a is made of high-temperature and high-presure resistent alloy steel material, extraordinary can meet high temperature and pressure
Job requirement, for the structure of valve rod 4a as shown in figure 4, the valve rod 4a includes bar portion 4a3, the upper end of valve rod 4a is equipped with spiral shell
Line portion 4a4, lower part are equipped with lower sealing surface 4a1 and upper sealing surface 4a2.
The valve rod 4a penetrates the valve body 1a and sets, and valve rod 4a is sequentially passed through the endoporus of the bushing 7a by top
With the endoporus of valve seat 5a, the lower lumen between the connector 2a and valve seat 5a, the threaded portion of the valve rod 4a are stretched into lower part
4a4 stretches out the top of the bushing 7a；The valve rod guide sleeve 6a is arranged between the valve body 1a and valve rod 4a, to valve rod 4a
Movement play the guiding role, the valve rod 4a can be axially moveable in valve rod guide sleeve 6a.
Referring to Fig. 5, the upper faying face 2a1 shapes of the lower sealing surface 4a1 of the valve rod 4a and connector 2a are close
Coordinate, be such as inverted cone surface, the mutual face contacts of faying face 2a1 and lower sealing surface 4a1 on this, form the face sealing indicator valve
Level-one face fitted seal；The lower faying face 5a1 shapes of the upper sealing surface 4a2 and the valve seat 5a of the valve rod 4a are fitted close,
Such as it is the conical surface, the lower faying face 5a1 and the mutual face contacts of upper sealing surface 4a2, form the two level face that the face seals indicator valve
Fitted seal.
Referring to Fig. 2, the lock washer 8a and locking nut 9a is installed on the threaded portion 4a4 of the valve rod 4a upper ends,
Lock washer 8a is arranged on the lower section of the locking nut 9a, it has the function that enhancing locking intensity；Lock washer 8a
And the coupling mechanism force of locking nut 9a generations can adjust the leakproofness of level-one face fitted seal and two level face fitted seal.
The special spanner 10a is engaged with the locking nut 9a, and special spanner 10a is by rotating the locking screw
Female 9a is while special by using this to control the switch of face sealing indicator valve and exterior self-locking is carried out to the valve rod 4a
Spanner 10a adjusts the coupling mechanism force that the lock washer 8a and locking nut 9a are produced, to adjust the valve rod 4a and valve seat 5a
And the sealing between the valve rod 4a and connector 2a is to optimal (i.e. described level-one face fitted seal and two level face fitted seal
To most preferably), so as to effectively lift the sealing performance of whole indicator valve.
The present invention is using process, before diesel engine is ready to start, by using special spanner 10a rotation locking nuts 9a
The face sealing indicator valve is closed, prevents the gas of high temperature and pressure from being gone here and there out out of cylinder；When need measure cylinder of diesel engine in
During pressure, the valve outlet on right side is connected into special measurement instrument, after connection, rotates locking nut using special spanner 10a
The upward lifting valve rod 4a of 9a, at this time high temperature and high pressure gas poured by the valve inlet of face sealing indicator valve lower end, by valve rod 4a (under
Sealing surface 4a1) gap, valve rod 4a (upper sealing surface 4a2) and valve seat 5a (lower knots between connector 2a (upper faying face 2a1)
Conjunction face 5a1) between gap and interior pipeline 12a enter special measurement instrument；Collected through special measurement instrument after a while
To after enough information, locking nut 9a is reversely rotated by special spanner 10a, puts down valve rod 4a (lower sealing surface 4a1) with being connected
Body 2a (upper faying face 2a1) fitting forms primary seal, while valve rod 4a (upper sealing surface 4a2) and valve seat 5a (lower faying faces
Secondary seal is formed between 5a1), cylinder interior gas does not enter back into special detector table, is opened until next time, indicator valve is this
Sample cycle operation.
Claims (6)
1. a kind of boat diesel engine seals indicator valve with face, include valve body, valve rod and bushing, the valve inner is equipped with perforation
Upper and lower inner cavity, the side of the valve body are equipped with valve outlet, which passes through the middle part of inner cavity described in interior pipeline connection, the lining
Set is connected to the upper port of the inner cavity by thread seal, and the valve rod passes through the endoporus of the bushing and stretches into the inner cavity
Lower part；It is characterized in that, the face sealing indicator valve has further included valve seat, valve rod guide sleeve and connector, the valve rod guide sleeve is set
It is placed between the valve body and valve rod, and the valve rod can be axially moveable in valve rod guide sleeve, and the connector passes through spiral shell
Line screws in the lower port of the inner cavity of the valve body, and the upper end of the connector is equipped with upper faying face, and the valve seat is pressed into the valve
The middle part of the inner cavity of body, the bottom of the valve seat are equipped with lower faying face, and the lower part of the valve rod is equipped with lower sealing surface and upper sealing
Match somebody with somebody in the level-one face that the upper faying face close-fitting contact of face, the lower sealing surface and the connector forms the face sealing indicator valve
Sealing is closed, lower faying face close-fitting contact of sealing surface and the valve seat forms the two level face of the face sealing indicator valve on this
Fitted seal.
2. boat diesel engine according to claim 1 seals indicator valve with face, it is characterised in that the upper end of the valve rod
Equipped with threaded portion, which stretches out the top of the bushing and is provided with lock washer and locking nut, the lock washer and
The coupling mechanism force that locking nut produces can adjust the leakproofness of level-one face fitted seal and two level face fitted seal.
3. boat diesel engine according to claim 2 seals indicator valve with face, it is characterised in that work(is shown in the face sealing
Valve has further included special spanner, and the special spanner is by rotating the locking nut to control the switch of face sealing indicator valve
And exterior self-locking is carried out to the valve rod.
4. boat diesel engine according to claim 1 seals indicator valve with face, it is characterised in that in the valve of the valve body
Exit is provided with the protective cap for protecting screw thread.
5. boat diesel engine according to claim 1 seals indicator valve with face, it is characterised in that the valve rod is using resistance to
The high voltage bearing alloy steel material of high temperature is made, and the valve seat is made of heat safe nickel-base high-temperature alloy material.
6. boat diesel engine according to claim 1 seals indicator valve with face, it is characterised in that the upper faying face and
Lower sealing surface is inverted cone surface, and the lower faying face and upper sealing surface are the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710950613.5A CN107956891A (en) | 2017-10-13 | 2017-10-13 | Boat diesel engine seals indicator valve with face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710950613.5A CN107956891A (en) | 2017-10-13 | 2017-10-13 | Boat diesel engine seals indicator valve with face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107956891A true CN107956891A (en) | 2018-04-24 |
Family
ID=61953574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710950613.5A Pending CN107956891A (en) | 2017-10-13 | 2017-10-13 | Boat diesel engine seals indicator valve with face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107956891A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728132A (en) * | 2019-10-28 | 2021-04-30 | 沪东重机有限公司 | Indicator valve for high sealing performance measurement of marine diesel engine |
| CN114674568A (en) * | 2021-10-08 | 2022-06-28 | 中国船舶重工集团公司第七一一研究所 | Measuring device for measuring high-temperature cylinder pressure and diesel engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4879906U (en) * | 1971-12-29 | 1973-10-01 | ||
| JPH0283332U (en) * | 1988-12-16 | 1990-06-27 | ||
| CN201306218Y (en) * | 2008-12-05 | 2009-09-09 | 南车资阳机车有限公司 | Power-indicating safety valve component for diesel engine |
| CN203162167U (en) * | 2013-03-20 | 2013-08-28 | 上海沪东造船阀门有限公司 | Self-locking high-temperature high-pressure pre-tightening indicator valve applied to diesel engine tube system |
| CN106121817A (en) * | 2016-08-04 | 2016-11-16 | 上海申吉仪表有限公司 | Diesel engine indicator valve |
-
2017
- 2017-10-13 CN CN201710950613.5A patent/CN107956891A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4879906U (en) * | 1971-12-29 | 1973-10-01 | ||
| JPH0283332U (en) * | 1988-12-16 | 1990-06-27 | ||
| CN201306218Y (en) * | 2008-12-05 | 2009-09-09 | 南车资阳机车有限公司 | Power-indicating safety valve component for diesel engine |
| CN203162167U (en) * | 2013-03-20 | 2013-08-28 | 上海沪东造船阀门有限公司 | Self-locking high-temperature high-pressure pre-tightening indicator valve applied to diesel engine tube system |
| CN106121817A (en) * | 2016-08-04 | 2016-11-16 | 上海申吉仪表有限公司 | Diesel engine indicator valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728132A (en) * | 2019-10-28 | 2021-04-30 | 沪东重机有限公司 | Indicator valve for high sealing performance measurement of marine diesel engine |
| CN114674568A (en) * | 2021-10-08 | 2022-06-28 | 中国船舶重工集团公司第七一一研究所 | Measuring device for measuring high-temperature cylinder pressure and diesel engine |
| CN114674568B (en) * | 2021-10-08 | 2024-01-12 | 中国船舶集团有限公司第七一一研究所 | Measuring device for measuring high-temperature cylinder pressure and diesel engine |
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Application publication date: 20180424 |