CN85109004A - The poppet valve in upright arrangement that has improved - Google Patents
The poppet valve in upright arrangement that has improved Download PDFInfo
- Publication number
- CN85109004A CN85109004A CN198585109004A CN85109004A CN85109004A CN 85109004 A CN85109004 A CN 85109004A CN 198585109004 A CN198585109004 A CN 198585109004A CN 85109004 A CN85109004 A CN 85109004A CN 85109004 A CN85109004 A CN 85109004A
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- China
- Prior art keywords
- mentioned
- poppet valve
- sealing surfaces
- valve seat
- valve element
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- 239000012530 fluid Substances 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 47
- 238000004891 communication Methods 0.000 claims description 23
- 239000012858 resilient material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 4
- 208000002925 dental caries Diseases 0.000 claims 1
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Lift Valve (AREA)
Abstract
A kind of multidigit, multiport valve assembly that has improved.This valve assembly has adopted many poppet valve element and many fixing and movable valve seats of handling when being installed on the single axle, and effect thereon has the relevant surface area of pressured fluid to have at least part to be controlled by an asymmetrical poppet valve element structure.In the poppet valve element each all comprises the annular seal surface of a pair of relative different-diameter, to stipulate different surface areas.
Description
In general the present invention is relevant valve assembly, the relevant multidigit of saying so in more detail, multi-way valve assembly, this multidigit, multi-way valve assembly have utilized many lifting type valve members that are contained on the actuator shaft.
Before this, it is extremely difficult and expensive utilizing the lifting type valve member in multidigit, multi-way valve assembly.The one of the main reasons of this difficulty is owing to such fact, and promptly this class valve will typically provide many valve members or the element of being handled by single live axle.Because valve member is generally perpendicular to valve seat motion in poppet valve, this just need determine the position of each valve seat in valve assembly, thereby will guarantee that all relevant valve members are actually firm fluid tight seal combination of while, and this just requires the tolerance that keeps very tight.This point is not only very difficult in a large amount of production, and is very expensive.Also wish to design so very much for this class multidigit, multi-way valve, enable to stablize or self remain on each position, thereby just need not continuous driving force is provided so that it is remained on certain position.
The invention provides a pressure difference that produces power, the power that is produced is controllable, so that the maintaining valve assembly is on any one of two position.This point is to realize by controlling relevant surface area selectively.Pressured fluid by valve control acts on these surfaces, thereby produces a unbalanced pressure difference.This unbalanced pressure difference acts on to maintaining valve and is on the direction of position of the phase of wishing.Therefore in the present invention, the driving force of unique needs moves to the needed power in another position with valve assembly from a position exactly, and does not need to be in which locational lasting external force for maintaining valve.
According to a feature of the present invention, the relevant surface area that pressured fluid acted on to small part is controlled by an asymmetric poppet valve element structure.In particular, poppet valve element will provide first and second sealing surfaces, and each sealing surfaces will be stipulated different, predetermined surface area, and the pressured fluid in the housing bore will provide an axial force to these surfaces.An embodiment in according to the present invention, each in these sealing surfaces all comprises the ring rib of a continuous highly resilient material.These ring ribs are arranged in the relative both sides of poppet valve element, and one diameter in the ring rib is greater than the diameter of another ring rib.
Other advantages of the present invention and feature will become clearly from later description and the accessory claim relevant with accompanying drawing.
Fig. 1 is the section according to the embodiment of one two position four-way valve assembly of the present invention.
Fig. 2 be a poppet valve element shown in Figure 1 amplification section.
Fig. 3 is the planimetric map of poppet valve element shown in Figure 2.
Figure 4 and 5 are two views of packing ring core of poppet valve element shown in Figure 2.
Fig. 6 is the amplification profile of a fixing valve seat shown in Figure 1.
Fig. 7 is the amplification profile of a movable valve seat shown in Figure 1.
Fig. 8 is the view of movable valve seat shown in Figure 7.
Refer now to Fig. 1, its expression is according to a valve assembly 200 of one embodiment of the invention.Valve assembly 200 is one two position four-way valves.But will be clear from following description, principle of the present invention also can be used for the valve of other type, for example the 2/2-way valve.Usually valve assembly 200 comprises valve seat 210, the first poppet valve element, 212, the second poppet valve element 214 and actuator 216 that the movable valve seat of a housing 202, the first fixed valve bases 204, the second fixed valve bases 206, the first 208, the second is movable.
A hole 218 is arranged on the housing 202, and it is to be indicated by reference number 218 usually.As shown in Figure 1, the diameter in hole 218 will suitably form, so that consistent with the shape of valve base piece, and provides suitable passage for liquid stream.Also constitute an inlet 220, the first outlets 222, the second outlet 224, the first bleed outlets 226 and second bleed outlets 228 on the housing 202.
In housing 202, also have three loculuses, first loculus 230 is arranged between poppet valve element 212 and 214 usually, second loculus 232 is arranged between poppet valve 212 and the piston usually, usually this piston is indicated by reference number 234, the 3rd loculus 236 is arranged between poppet valve 214 and the piston usually, and this piston is indicated by reference number 238 usually.
Turn to description now to poppet valve element 212 and 214.Should be noted that at first these poppet valve element have identical structure, thereby will only be described in detail one in these poppet valve element.An amplification view of poppet valve element 212 as shown in Figure 2.A view of poppet valve element 212 as shown in Figure 3.Poppet valve element 212 generally includes metal core 262 and elastomeric sheath 264 of a packing ring shape, and the high elasticity sheath surrounds fuse 262 usually.Figure 4 and 5 are represented two views of metal core 262, and sheath 264 is made of first sealing surfaces 266 and second sealing surfaces 268.Each of these sealing surfaces 266-268 comprises a continuous ring rib, and ring rib has semi-circular cross-section usually.Can be clear that by Fig. 2 sealing surfaces 266-268 is arranged on two relative limits of poppet valve element 212.In addition, be important to note that the diameter of sealing surfaces 266 " K " is greater than the diameter " L " of sealing surfaces 268.It will be appreciated that from following description this dissymmetrical structure of sealing surfaces 266-268 provides a desirable pressure imbalance in valve assembly 200.Should be clear, the special poppet valve arrangements that Fig. 2 represents not is to plan restriction the present invention.Provide the asymmetric sealed surface texture of other of pressure imbalance noted earlier in suitable application, to be adopted.
With reference to Fig. 1 and 6, it is cylindrical to it will be appreciated that fixing valve base piece 204 and 206 has usually.As the situation of poppet valve element, fixed valve base spare 204 and 206 is identical.Therefore fixed valve base spare 206 will only be described.Form second fixed valve base spare 206.Normally for the valve base surface 270 that radially extends is provided.Valve base surface 270 will be by first sealing surfaces 266 of poppet valve element 214 ' close.Fixing valve base piece 206 also provides a series of openings 272, allows the fluid communication between second outlet, 224 and second bleed outlet 228 when opening with convenient valve seat 270.Fixing valve base piece 206 also forms one and extends axially surface 274, and this extends axially the surface and combines with the sleeve 260 of coaxial arrangement.Should be noted that this surface will be combined by the cup seal 248 with 204 connections of first valve base piece of fixing.Also comprise two suitable annular high elasticity seal rings 276,278 so that between shell 204 and fixing valve base piece 206, provide a kind of fluid tight seal.Furthermore, it should be noted that, fixing valve base piece 206 the one end form many arrange in garden week to axially extended chamber 280.
Refer now to Fig. 1,7 and 8, will describe movable valve base piece 208 and 210 now.Still like this, because movable valve base piece structurally is identical, so will only describe valve base piece 210.Movable valve base piece 210 comprises a columniform part 282.This cylindrical part forms 284, one annular sealing rings 286 of an outside circular groove and is arranged in the groove 284, so that provide fluid tight seal between movable valve base piece 210 and housing 202.Should be noted that the outer surface 286 of movable valve base piece 210 is corresponding with the hole 218 of housing 204 in size, so that allow the relative housing of valve base piece endwisely slipping.Movable valve base piece 210 also comprises an annular flange part 288, and this annular flange part extends radially outward from an end of column part 282.Flange part 288 provides a valve base surface 289, and this valve base surface can be raised second sealing surfaces 268 of valve base piece 214 ' close.Flange part 288 also forms and manyly distributes to the cavity 290 of external-open along garden week, and the flange part 288 of movable valve base piece 210 plays a thrust device, so that the axial motion of restriction valve base piece.In one direction, flange part 288 will be near housing 202, and on another direction, flange part will be near fixing valve base piece 206.Should be noted that, when the flange part 288 of movable valve base piece 210 combines with the valve base piece of fixing 206, cavity 290 associatings of the cavity 280 of fixing valve base piece and movable valve base piece, thereby allow the space fluid communication between chamber 236 and housing 202 and the flange part 288, allow the fluid communication between the chamber 236 and second outlet 244 simultaneously.
The manipulation of valve assembly 200 will be described now.On the position of as shown in Figure 1 actuator, first sealing surfaces 266 of poppet valve element 212 will be closed the valve base surface of the first fixing valve base piece 204, the valve base surface 289 of the valve base piece 210 that and second sealing surfaces 268 of poppet valve element 214 ' will close second is movable.From before embodiment's discussion will see clearly, the valve base surface of movable valve base piece 210 will or when closing and close prior to the valve base surface of fixing valve base piece 204.This characteristic ground is because fixing valve base piece 204 and 206 size, and it causes distance " M " between poppet valve element 212-214 and the movable valve base piece 208-210 less than the distance " N " between poppet valve element and the valve base piece of fixing.
When the valve base surface of first valve base piece of fixing 204 is closed,, making between inlet 220 and first outlet 222 and allowing fluid communication, and the fluid communication between first outlet, 222 and first bleed outlet 226 will be blocked through cavity 280 and 290.The valve base surface 289 of the second movable valve base piece 210 close the fluid communication that will allow between second outlet, 224 and second bleed outlet 228.And the fluid communication that enters the mouth between 220 and second outlet 224 will be blocked.
When actuator is connected to the right, it should be noted that at first the second movable valve seat 210 will be drawn out along poppet valve element 214, combine with second valve base piece of fixing 206 up to flange part 288.Second poppet valve element 214 moves right continuing, up to the valve base surface 270 of the fixing valve base piece 206 of its sealing surfaces 266 ' close second.Also have, or when closing prior to this valve base surface, second sealing surfaces 268 of poppet valve element 212 will be closed the valve base surface of the first movable valve base piece 208, the valve base surface of the first movable valve base piece 208 close the fluid communication that will allow between first outlet, 222 and first bleed outlet 226, and 220 and first fluid communication that exports between 222 that enters the mouth will be blocked.Closing of valve base surface 270 will allow 220 and second fluid communication that exports between 224 that enters the mouth, and the fluid communication between second outlet, 224 and second bleed outlet 228 will be blocked.
As can be seen from the foregoing description, each of the first and second sealing surfaces 266-268 of poppet valve element 212-214 has all been stipulated predetermined surface area, and the pressured fluid in first cavity 230 of housing 202 will apply an axial force to this surface.Because the diameter " K " of first sealing surfaces 266 is greater than the diameter " L " of second sealing surfaces 268, so just be greater than surface area by the second sealing surfaces defined by the predetermined surface area of first sealing surfaces regulation.Therefore when valve assembly 200 is in position shown in Figure 3, the fluid pressure in first cavity 230 will apply one greater than the active force that is applied on the poppet valve element 214 to poppet valve element 212.Thereby will have one vertically left active force be in illustrated position to keep poppet valve element 212.Equally, when actuator 216 moves among the figure right-hand shown in the imaginary line, the pressure that acts on the poppet valve element 214 will be bigger than the pressure that acts on the poppet valve element 212.Therefore, He Cheng pressure imbalance is stable at any one of two positions with maintaining valve assembly 200 and does not need to use the external force of a continuous action.
Be to be further noted that principle of the present invention indicated in valve assembly 200, can be adopted by the valve assembly of other pattern.These valve assemblys can have plural poppet valve element or have only a poppet valve element.Therefore, according to the present invention, a poppet valve assembly can only comprise a simple poppet valve element, simple fixing a valve base piece and a simple movable valve base piece.Also should be clear, some principle of the structure that adopts in preceding two embodiments can be adopted by the valve assembly of pattern shown in Figure 1.
Therefore, by the invention provides a kind of like this valve assembly, its uses many to be installed in a poppet valve of carrying out on the axle, and is designed to be placed in the combination that is made of the fixing valve seat with movable, and its manufacturing tolerances can easily reach.
This will be significantly, and promptly the embodiments of the invention of being introduced can provide those advantages described above and feature, and also with clear, the present invention can revise, changes and change and not depart from the original scope or the implication of additional claim.
Claims (20)
1, a poppet valve assembly in upright arrangement that has improved comprises:
First valve base surface that provides by it and the housing of second valve base surface are provided;
Be fixed on the poppet valve element in the actuator that is in the above-mentioned housing, above-mentioned poppet valve element has first and second sealing surfaces, first sealing surfaces of above-mentioned formation along with above-mentioned actuator in the combination of a direction and close above-mentioned first valve base surface, and second sealing surfaces of above-mentioned formation along with above-mentioned actuator in the opposite direction combination and close above-mentioned second valve base surface, each of above-mentioned first and second sealing surfaces has been stipulated a predetermined surface area, pressured fluid in the above-mentioned housing is to axial force of this surface action, is greater than predetermined surface area by another defined in the above-mentioned sealing surfaces by the predetermined surface area of a defined in the above-mentioned sealing surfaces.
2, illustrated poppet valve assembly in the claim 1 wherein is greater than predetermined surface area by the above-mentioned second sealing surfaces defined by the predetermined surface area of the above-mentioned first sealing surfaces defined.
3, illustrated poppet valve assembly in the claim 1, wherein above-mentioned first and second sealing surfaces are arranged on two opposite side of above-mentioned poppet valve element.
4, illustrated poppet valve assembly in the claim 1, each in wherein above-mentioned first and second sealing surfaces all comprises the ring rib of a continuous highly resilient material usually.
5, illustrated poppet valve assembly in the claim 4, one diameter in the wherein above-mentioned ring rib are greater than in the above-mentioned ring rib another diameter.
6, illustrated poppet valve assembly in the claim 5, above-mentioned two ring ribs wherein have semi-circular cross-section usually.
7, illustrated poppet valve assembly in the claim 1, above-mentioned poppet valve element wherein comprises the fuse of packing ring shape of a metal and the sheath of a highly resilient material, this sheath will cover the both sides of above-mentioned fuse at least, above-mentioned sheath forms a continuous ring rib on two opposite side of above-mentioned fuse, one diameter in above-mentioned two ring ribs is greater than another the diameter of above-mentioned two rings in the ribs.
8, illustrated poppet valve assembly in the claim 7, above-mentioned sheath wherein surrounds above-mentioned fuse usually.
9, illustrated poppet valve assembly in the claim 1, above-mentioned actuator wherein comprises an axle and a pair of spool that is arranged in one heart on the above-mentioned axle, above-mentioned poppet valve element is inserted between the said reel.
10, a kind of upright arrangement lift valves assembly that has improved comprises:
A housing;
A fixed valve base and a movable valve seat that provides by above-mentioned housing;
A poppet valve element that is fixed in the actuator that is in the above-mentioned housing, above-mentioned poppet valve element has first and second sealing surfaces, first sealing surfaces of above-mentioned formation is closed the valve seat of said fixing a direction combination along with above-mentioned actuator, second sealing surfaces of above-mentioned formation simultaneously along with above-mentioned actuator in the opposite direction combination and close above-mentioned movable valve seat, in above-mentioned first and second sealing surfaces each is all stipulated a predetermined surface area, pressured fluid in the above-mentioned housing is to axial force of this surface action, is greater than predetermined surface area by another defined in the above-mentioned sealing surfaces by the predetermined surface area of a defined in the above-mentioned sealing surfaces.
11, illustrated poppet valve assembly in the claim 10, the combination along with above-mentioned actuator in above-mentioned housing of above-mentioned movable valve seat wherein is can be axially movable.
12, illustrated poppet valve assembly in the claim 11, above-mentioned movable valve seat wherein comprises a columniform part, form one on it towards outer circular groove, an annular seal element that is arranged in the above-mentioned groove provides above-mentioned movable valve seat and the sealing between the above-mentioned housing, an annular flange part radially stretches out from an end of above-mentioned cylindrical part usually simultaneously, forms the cavity to external-open that a plurality of gardens week distributes on the above-mentioned flange part.
13, illustrated poppet valve assembly in the claim 12, the above-mentioned flange part of above-mentioned movable valve seat wherein cooperates an end of above-mentioned first valve seat, so that limit above-mentioned movable valve seat moving axially in a direction.
14, illustrated poppet valve assembly in the claim 13, an end of the valve seat of said fixing have wherein formed a plurality of cavitys that extend vertically that distribute along garden week.
15, illustrated poppet valve assembly in the claim 10, above-mentioned housing wherein comprise first, second and the 3rd outlet, these outlets in above-mentioned housing the position and the relativeness of above-mentioned poppet valve element be:
The valve seat of said fixing close the fluid communication that allows between above-mentioned first and second outlets, block the fluid communication between the above-mentioned second and the 3rd outlet simultaneously,
Above-mentioned movable valve seat close the fluid communication that allows between the above-mentioned second and the 3rd outlet, block the fluid communication between above-mentioned first and second outlets simultaneously.
16, a upright arrangement lift valves assembly that has improved comprises:
Housing with an axial bore;
Be arranged in first and second fixed valve bases in the above-mentioned hole of above-mentioned housing;
Be arranged in the first and second movable valve seats in the above-mentioned hole of above-mentioned housing; With
Be fixed on first and second poppet valve element in the actuator, actuator is removable vertically in the hole of above-mentioned housing, and each of above-mentioned poppet valve element has first and second sealing surfaces;
First sealing surfaces of above-mentioned first poppet valve element that forms is closed the above-mentioned first fixing valve seat, and above-mentioned second sealing surfaces of above-mentioned second poppet valve element that forms is closed the above-mentioned second movable valve seat along with above-mentioned actuator in the combination of a direction;
Second sealing surfaces of above-mentioned first poppet valve element that forms is closed the above-mentioned first movable valve seat, and above-mentioned first sealing surfaces of above-mentioned second poppet valve element that forms along with above-mentioned actuator in the opposite direction combination and close the above-mentioned second fixing valve seat;
17, the illustrated poppet valve assembly of claim 16, above-mentioned housing wherein forms an inlet, and first and second outlet and first and second bleed outlets, above-mentioned opening are to arrange like this with respect to above-mentioned poppet valve element.
The above-mentioned first fixing valve seat close the fluid communication that allows between above-mentioned inlet and above-mentioned first outlet, block the fluid communication between above-mentioned first outlet and above-mentioned first bleed outlet simultaneously.
The above-mentioned second movable valve seat close the fluid communication that allows between above-mentioned second outlet and above-mentioned second bleed outlet, block the fluid communication between above-mentioned inlet and the above-mentioned outlet simultaneously.
The above-mentioned first movable valve seat close the fluid communication that allows between above-mentioned first outlet and above-mentioned first bleed outlet, block the fluid communication between above-mentioned inlet and above-mentioned first outlet simultaneously.
The above-mentioned second fixing valve seat close the fluid communication that allows between above-mentioned inlet and above-mentioned second outlet, block the fluid communication between above-mentioned second outlet and above-mentioned second bleed outlet simultaneously.
18, illustrated poppet valve assembly in the claim 17, each regulation first pre-surface area of determining size in first sealing surfaces of above-mentioned first and second poppet valve element wherein, and each the regulation second pre-surface area of determining size in above-mentioned second sealing surfaces of above-mentioned first and second poppet valve element.
19, the illustrated poppet valve assembly of claim 18, the above-mentioned first pre-surface area of determining wherein is greater than the above-mentioned second pre-surface area of determining.
20, the illustrated poppet valve assembly of claim 19, each of above-mentioned sealing surfaces wherein generally includes the continuous ring rib of a highly resilient material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68575584A | 1984-12-24 | 1984-12-24 | |
| US685,755 | 1984-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85109004A true CN85109004A (en) | 1986-11-05 |
Family
ID=24753547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198585109004A Pending CN85109004A (en) | 1984-12-24 | 1985-12-13 | The poppet valve in upright arrangement that has improved |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPH0756349B2 (en) |
| CN (1) | CN85109004A (en) |
| AU (1) | AU5150385A (en) |
| BR (1) | BR8506460A (en) |
| CA (1) | CA1264266A (en) |
| DD (1) | DD245704A5 (en) |
| DE (2) | DE8533506U1 (en) |
| ES (1) | ES8705101A1 (en) |
| FR (1) | FR2575263B1 (en) |
| GB (1) | GB2168789B (en) |
| IT (1) | IT1200872B (en) |
| SE (1) | SE8506038L (en) |
| ZA (2) | ZA876751B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388600A (en) * | 2013-08-02 | 2013-11-13 | 徐州重型机械有限公司 | Aloft work engineering machine and servo hydraulic system thereof |
| CN104482252A (en) * | 2015-01-06 | 2015-04-01 | 胡甜甜 | Integrated reversing valve |
| CN104776079A (en) * | 2015-03-30 | 2015-07-15 | 济南夫驰科技有限公司 | Multi-connected integrated assembling valve seat |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558125A (en) * | 1994-09-06 | 1996-09-24 | Ingersoll-Rand Company | Air winch control valve |
| DE19909918A1 (en) * | 1999-03-06 | 2000-09-14 | Bosch Gmbh Robert | Pilot-operated directional valve |
| JP3774334B2 (en) * | 1999-06-17 | 2006-05-10 | 株式会社テージーケー | Four-way selector valve |
| RU2549756C1 (en) * | 2014-05-20 | 2015-04-27 | Открытое акционерное общество "Конструкторское бюро химавтоматики" | Valve |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1028841B (en) * | 1955-05-07 | 1958-04-24 | Erich Herion | Multi-way switch valve with special pressure relief |
| US3087760A (en) * | 1960-07-14 | 1963-04-30 | Bendix Westinghouse Automotive | Multiple brake system |
| JPS441198Y1 (en) * | 1965-08-10 | 1969-01-17 | ||
| GB1224873A (en) * | 1966-12-20 | 1971-03-10 | Martonair Ltd | Fluid operable valve |
| FR1530861A (en) * | 1967-07-07 | 1968-06-28 | Knorr Bremse Gmbh | Dispensing valve |
| US3587156A (en) * | 1967-09-19 | 1971-06-28 | Systems Design Co Inc | Method of manufacturing a pressurized fluid control valve |
| US3848637A (en) * | 1973-05-07 | 1974-11-19 | Ite Imperial Corp | High speed four-way valve |
| JPS50115627U (en) * | 1974-03-04 | 1975-09-20 | ||
| IT1169423B (en) * | 1983-05-26 | 1987-05-27 | Luciano Migliori | DISTRIBUTOR VALVE FOR PNEUMATIC CIRCUITS |
| DE3322912A1 (en) * | 1983-06-25 | 1985-01-03 | Wabco Steuerungstechnik GmbH & Co, 3000 Hannover | Multi-way seat valve |
| GB2154707B (en) * | 1984-02-22 | 1988-09-14 | Ross Operating Valve Co | Inline poppet valve |
-
1985
- 1985-11-19 GB GB08528424A patent/GB2168789B/en not_active Expired
- 1985-11-27 CA CA000496318A patent/CA1264266A/en not_active Expired - Fee Related
- 1985-11-28 DE DE8533506U patent/DE8533506U1/de not_active Expired
- 1985-11-28 DE DE3542062A patent/DE3542062C2/en not_active Expired - Fee Related
- 1985-12-12 IT IT23182/85A patent/IT1200872B/en active
- 1985-12-13 CN CN198585109004A patent/CN85109004A/en active Pending
- 1985-12-17 AU AU51503/85A patent/AU5150385A/en not_active Abandoned
- 1985-12-18 FR FR858518772A patent/FR2575263B1/en not_active Expired
- 1985-12-19 ZA ZA856751A patent/ZA876751B/en unknown
- 1985-12-19 ZA ZA859722A patent/ZA859722B/en unknown
- 1985-12-20 DD DD85284924A patent/DD245704A5/en not_active IP Right Cessation
- 1985-12-20 SE SE8506038A patent/SE8506038L/en not_active Application Discontinuation
- 1985-12-23 BR BR8506460A patent/BR8506460A/en unknown
- 1985-12-23 ES ES550325A patent/ES8705101A1/en not_active Expired
- 1985-12-24 JP JP60291786A patent/JPH0756349B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388600A (en) * | 2013-08-02 | 2013-11-13 | 徐州重型机械有限公司 | Aloft work engineering machine and servo hydraulic system thereof |
| CN104482252A (en) * | 2015-01-06 | 2015-04-01 | 胡甜甜 | Integrated reversing valve |
| CN104776079A (en) * | 2015-03-30 | 2015-07-15 | 济南夫驰科技有限公司 | Multi-connected integrated assembling valve seat |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA859722B (en) | 1987-10-28 |
| JPS61157880A (en) | 1986-07-17 |
| BR8506460A (en) | 1986-09-02 |
| AU5150385A (en) | 1986-07-03 |
| GB2168789B (en) | 1988-08-17 |
| FR2575263B1 (en) | 1989-02-10 |
| DE3542062C2 (en) | 1997-02-27 |
| GB2168789A (en) | 1986-06-25 |
| GB8528424D0 (en) | 1985-12-24 |
| ZA876751B (en) | 1987-11-25 |
| JPH0756349B2 (en) | 1995-06-14 |
| ES8705101A1 (en) | 1987-04-16 |
| IT8523182A0 (en) | 1985-12-12 |
| SE8506038L (en) | 1986-06-25 |
| DE3542062A1 (en) | 1986-07-03 |
| DD245704A5 (en) | 1987-05-13 |
| IT1200872B (en) | 1989-01-27 |
| FR2575263A1 (en) | 1986-06-27 |
| DE8533506U1 (en) | 1988-07-07 |
| CA1264266A (en) | 1990-01-09 |
| SE8506038D0 (en) | 1985-12-20 |
| ES550325A0 (en) | 1987-04-16 |
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