CN109441687A - The assembling structure and its installation method of cylinder head priming valve - Google Patents
The assembling structure and its installation method of cylinder head priming valve Download PDFInfo
- Publication number
- CN109441687A CN109441687A CN201811374266.7A CN201811374266A CN109441687A CN 109441687 A CN109441687 A CN 109441687A CN 201811374266 A CN201811374266 A CN 201811374266A CN 109441687 A CN109441687 A CN 109441687A
- Authority
- CN
- China
- Prior art keywords
- valve
- priming valve
- cylinder head
- priming
- gasket
- 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
- 230000037452 priming Effects 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title description 5
- 238000009434 installation Methods 0.000 title description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 10
- 239000010962 carbon steel Substances 0.000 claims abstract description 10
- 239000004519 grease Substances 0.000 claims abstract description 10
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- 230000006978 adaptation Effects 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N9/00—Starting of engines by supplying auxiliary pressure fluid to their working chambers
- F02N9/04—Starting of engines by supplying auxiliary pressure fluid to their working chambers the pressure fluid being generated otherwise, e.g. by compressing air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a kind of assembling structures of cylinder head priming valve, including priming valve, cylinder head and the valve seat orifice opened up in the cylinder head.Grease layer is coated on the priming valve and the mounting surface of the valve seat orifice, and gasket made of 08AI structural carbon steel is assembled on the lower contact plane of the priming valve, the valve body periphery setting seal groove of the priming valve is adapted to O-ring seal, passes through screw threads for fastening between the priming valve and cylinder head.Standard is simple, easy to operate；Such as contact surface abrasion, it need to only dismantle and start valve replacement gasket.Reduce maintenance cost.
Description
Technical field
The present invention relates to engine art more particularly to a kind of assembling structures and its installation method of cylinder head priming valve.
Background technique
On marine low speed diesel engine, starting air distributor is generally set, the control that air is opened generally uses
Priming valve.Priming valve is equipped with a priming valve, the control of origin self-starting air distributor loaded on cylinder cap in every cylinder head
Air is opened, and is closed by the spring inside priming valve.As shown in Figure 1, the valve seat orifice 3 in priming valve 1 and cylinder head 2 directly carries out
Metal sealing, priming valve 1 start repeatedly the contact surface abrasion of rear and cylinder head 2 valve seat orifice 3 repeatedly, will cause gas leakage,
Gas temperature is up to 300 °~400 °, once leakage will affect performance requirement, generates serious consequence.If preventing leakage from needing the period
Property use tool reconditioning, make metal covering formed sealing surface, prevent from revealing from there.Reconditioning is higher to surface smoothness requirements,
It is difficult to reach, and professional is needed to repair, higher cost.
The information for being disclosed in the background technology part, which only refers to, is increasing understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of assembling structures of cylinder head priming valve
And its installation method.
The purpose of the present invention is implemented with the following technical solutions:
The assembling structure of cylinder head priming valve, including priming valve, cylinder head and the valve seat opened up in the cylinder head
Hole.Grease layer is coated on the priming valve and the mounting surface of the valve seat orifice, and on the lower contact plane of the priming valve
Gasket made of 08AI structural carbon steel is assembled, the valve body periphery setting seal groove of the priming valve is adapted to O-ring seal,
Pass through screw threads for fastening between the priming valve and cylinder head.
Preferably, the grease layer is molybdenum dioxide coating.
Preferably, the average carbon mass fraction of the 08AI structural carbon steel is 0.08%, and hardness HBS digital average is
100。
The compound formulation of cylinder head priming valve, comprising:
A. molybdenum dioxide will be coated on the mounting surface between priming valve and the valve seat orifice of cylinder head；
B., gasket made of 08AI structural carbon steel is installed on the bottom surface for starting valve chest；
C., O-ring seal is stained with to the seal groove being assemblied on the priming valve periphery after lubricating grease；
D. the priming valve with gasket and O-ring is installed in the valve seat orifice；
E. washer and nut are loaded on the priming valve, first nut is tightened by turns in three times to 40 °, unclamps spiral shell
Mother, each nut is tightened to 66 ° by this for another example, is installed.
Compared with prior art, the beneficial effects of the present invention are: assembly is simple, easy to operate；Such as contact surface abrasion, need to only tear open
It unloads and starts valve replacement gasket.Reduce maintenance cost.
Detailed description of the invention
Fig. 1 is existing priming valve mounting means；
Fig. 2 is the assembling structure schematic diagram of cylinder head priming valve of the present invention；
The assembling schematic diagram of the position Fig. 3 priming valve and gasket.
In figure: 1, priming valve；2, cylinder head；3, valve seat orifice；4, O-ring seal；5, gasket.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component
Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it
It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Referring to figs. 2 and 3, the assembling structure of cylinder head priming valve, including priming valve 1, cylinder head 2 and in the cylinder
Cover the valve seat orifice 3 opened up.Grease layer is coated on the priming valve 1 and the mounting surface of the valve seat orifice 3, and in the starting
Gasket made of 08AI structural carbon steel is assembled on the lower contact plane of valve 1, sealing ring is arranged in the valve body periphery of the priming valve 1
Slot is adapted to O-ring seal 4, passes through screw threads for fastening between the priming valve 1 and cylinder head 2.
Preferably, the grease layer is molybdenum dioxide coating.
Preferably, the average carbon mass fraction of the 08AI structural carbon steel is 0.08%, and hardness HBS digital average is
100。
The compound formulation of cylinder head priming valve, comprising:
A. molybdenum dioxide will be coated on the mounting surface between priming valve 1 and the valve seat orifice 3 of cylinder head 2；
B., gasket 5 made of 08AI structural carbon steel is installed on the bottom surface of 1 shell of priming valve；
C., O-ring seal 4 is stained with to the seal groove being assemblied on 1 periphery of priming valve after lubricating grease；
D. the priming valve 1 with gasket 5 and O-ring seal 4 is installed in the valve seat orifice 3；
E. washer and nut are loaded on the priming valve 1, first nut is tightened by turns in three times to 40 °, unclamps
Nut, each nut is tightened to 66 ° by this for another example, is installed.
Above-mentioned cylinder head and priming valve mounting means are installed gasket 5 in 1 shell lower plane of priming valve, be can effectively avoid
Contact surface out-of-flatness caused by pressure-air impact is lower, and then prevent gas from leaking.
Gasket 5 uses material 08Al, belongs to iron-based non-alloyed, is one kind of carbon constructional quality steel, average carbonaceous in steel
Measuring score is 0.08%, and hardness HBS numerical value is relatively soft about 100, and ductility and good seal performance can effectively make up gas leakage
Point.
Even if gasket 5 is worn, it is only necessary to replace gasket, not need supernumerary's power material resources, to contact metal covering processing essence
Degree requires to decrease, and cost is relatively low for gasket, is easily installed operation.
Compared with prior art, beneficial effects of the present invention are as follows:
(1) evaded in such a way that grinding tool is to contact surface progress reconditioning, it is difficult to guarantee machining accuracy.Using this hair
After bright, once contact surface abrasion replace gasket, soft iron material pad sealing performance is more preferable, improve operability, components at
This is low, and without guaranteeing excessively high machining accuracy, reduces processing cost and difficulty.
(2) maintenance cost is reduced, special maintenance personal and grinding tool is not necessarily to, only needs crewman's self-changeable.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (4)
1. the assembling structure of cylinder head priming valve, including priming valve, cylinder head and the valve seat orifice opened up in the cylinder head,
It is characterized by: coating grease layer on the priming valve and the mounting surface of the valve seat orifice, and connect under the priming valve
Touch plane on assemble 08AI structural carbon steel made of gasket, the priming valve valve body periphery setting seal groove with it is O-shaped close
Seal adaptation, passes through screw threads for fastening between the priming valve and cylinder head.
2. the assembling structure of cylinder head priming valve according to claim 1, it is characterised in that: the grease layer is dioxy
Change molybdenum coating.
3. the assembling structure of cylinder head priming valve according to claim 1, it is characterised in that: the 08AI structural carbon steel
Average carbon mass fraction be 0.08%, hardness HBS digital average be 100.
4. the compound formulation of cylinder head priming valve, comprising:
A. molybdenum dioxide will be coated on the mounting surface between priming valve and the valve seat orifice of cylinder head；
B., gasket made of 08AI structural carbon steel is installed on the bottom surface for starting valve chest；
C., O-ring seal is stained with to the seal groove being assemblied on the priming valve periphery after lubricating grease；
D. the priming valve with gasket and O-ring is installed in the valve seat orifice；
E. washer and nut are loaded on the priming valve, first nut is tightened by turns in three times to 40 °, nut is unclamped,
For another example each nut is tightened to 66 ° by this, is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374266.7A CN109441687A (en) | 2018-11-19 | 2018-11-19 | The assembling structure and its installation method of cylinder head priming valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374266.7A CN109441687A (en) | 2018-11-19 | 2018-11-19 | The assembling structure and its installation method of cylinder head priming valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109441687A true CN109441687A (en) | 2019-03-08 |
Family
ID=65553148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811374266.7A Pending CN109441687A (en) | 2018-11-19 | 2018-11-19 | The assembling structure and its installation method of cylinder head priming valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441687A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB596483A (en) * | 1945-07-27 | 1948-01-05 | Frederick Leversedge | Improvements in or relating to compressed air starting devices for internal combustion engines |
| NL7907454A (en) * | 1979-10-08 | 1981-04-10 | Nordstjernan Rederi Ab | Compressed air starting valve for diesel engine - has auxiliary valve opening with variable crank effort |
| JPH10318104A (en) * | 1997-05-16 | 1998-12-02 | Mitsubishi Heavy Ind Ltd | Fluid control valve device |
| CN201071918Y (en) * | 2007-08-27 | 2008-06-11 | 陕西汽车集团有限责任公司 | Improved car bridge differential gear of heavy truck |
| CN201568190U (en) * | 2009-12-16 | 2010-09-01 | 广州柴油机厂 | High power diesel starting valve of combination valve core |
| CN103930530A (en) * | 2011-09-30 | 2014-07-16 | 日本特殊陶业株式会社 | Lubricating coating composition and attachment component for internal combustion engine |
| CN205001102U (en) * | 2015-09-30 | 2016-01-27 | 大连金航船机有限公司 | Marine engine cylinder starting valve of double fuel hybrid |
| CN209278047U (en) * | 2018-11-19 | 2019-08-20 | 沪东重机有限公司 | The assembling structure of cylinder head priming valve |
-
2018
- 2018-11-19 CN CN201811374266.7A patent/CN109441687A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB596483A (en) * | 1945-07-27 | 1948-01-05 | Frederick Leversedge | Improvements in or relating to compressed air starting devices for internal combustion engines |
| NL7907454A (en) * | 1979-10-08 | 1981-04-10 | Nordstjernan Rederi Ab | Compressed air starting valve for diesel engine - has auxiliary valve opening with variable crank effort |
| JPH10318104A (en) * | 1997-05-16 | 1998-12-02 | Mitsubishi Heavy Ind Ltd | Fluid control valve device |
| CN201071918Y (en) * | 2007-08-27 | 2008-06-11 | 陕西汽车集团有限责任公司 | Improved car bridge differential gear of heavy truck |
| CN201568190U (en) * | 2009-12-16 | 2010-09-01 | 广州柴油机厂 | High power diesel starting valve of combination valve core |
| CN103930530A (en) * | 2011-09-30 | 2014-07-16 | 日本特殊陶业株式会社 | Lubricating coating composition and attachment component for internal combustion engine |
| CN205001102U (en) * | 2015-09-30 | 2016-01-27 | 大连金航船机有限公司 | Marine engine cylinder starting valve of double fuel hybrid |
| CN209278047U (en) * | 2018-11-19 | 2019-08-20 | 沪东重机有限公司 | The assembling structure of cylinder head priming valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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