CN104791522B - Oil-way switching device - Google Patents
Oil-way switching device Download PDFInfo
- Publication number
- CN104791522B CN104791522B CN201510190206.XA CN201510190206A CN104791522B CN 104791522 B CN104791522 B CN 104791522B CN 201510190206 A CN201510190206 A CN 201510190206A CN 104791522 B CN104791522 B CN 104791522B
- Authority
- CN
- China
- Prior art keywords
- oil
- rotary core
- end cap
- way switching
- cylinder body
- 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.)
- Expired - Fee Related
Links
Classifications
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- 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
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
- F16K5/0471—Packings between housing and plug
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0837—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements being bends
- F16L27/0845—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements being bends forming an angle of 90 degrees
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses an oil-way switching device which comprises a cylinder seat, a rotary core, a ring-shaped sealing gasket and a rotatable pipe connection, the cylinder seat comprises a cylinder body, a left end cap and a right end cap, two delivery connections are installed on the lower portion of the cylinder body, and the angle formed by the center lines of the two delivery connections is larger than 0 degree; positioning is conducted on the rotary core through the left end cap and the right end cap, the rotary core can flexibly rotate, the right end of the rotary core is provided with an oil through cavity, two oil outlets are formed in the side wall of the rotary core and are communicated with the oil through cavity, and each oil outlet is used for being communicated with the corresponding delivery connection; the ring-shaped sealing gasket is connected to the outer side of the rotary core in a sleeving mode, and oil outlet openings which are communicated with the delivery connections are formed in the side wall of the ring-shaped sealing gasket; the rotatable pipe connection is connected to the right end of the rotary core, and an inner cavity of the rotatable pipe connection is communicated with the oil through cavity of the rotary core. According to the oil-way switching device, the defects that an existing oil-way switching device of an afterburner fuel manifold experiment table is too simple and crude, and the occupied space volume is larger can be overcome, so that the size of the experiment table is reduced, fuel oil is prevented from being exposed in the air, and the safety of the production process is improved.
Description
Technical field
The invention belongs to Afterburner fuel manifold capacity of sprinkler characteristic test experimental rig field, more particularly, to one kind
Oil-way switching apparatus.
Background technology
Afterburner fuel manifold is aero-engine important spare part, needs to carry out fuel pressure-discharge characteristic before dispatching from the factory
Detection test.Fuel oil reinforcing house steward is toroidal, and even circumferential is covered with fuel oil shower nozzle, and concrete size is different because of specification.
Fuel flow can carry out conversion and obtain by the volume of fuel oil in the unit interval or quality.The oil circuit that testing stand is used
Oil circuit is switched to into metering oil circuit by oil return circuit when switching device starts for timing, is switched by metering oil circuit at the end of timing
To oil return circuit.Aviation kerosine belongs to inflammable, explosive, effumability material, and Afterburner fuel manifold test should be closed oil circuit is guaranteed
Under the conditions of carry out, to improve the security of production.Existing testing stand oil-way switching apparatus are rotating disc type, are realized by rotating rotating disk
The axial offset of connectionless steel pipe realizes that oil circuit switches.Existing oil-way switching apparatus structure is simple and crude, and the spatial volume for occupying is larger,
And fuel oil has part to be exposed in air, there is potential safety hazard.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of oil-way switching apparatus, the oil circuit
Switching device may be directly applied to new work engine Afterburner fuel manifold testing stand, and measurement reinforcing house steward's fuel flow characteristic is full
The development of sufficient engine component, the quick detection of batch production.
For achieving the above object, according to one aspect of the present invention, there is provided a kind of oil-way switching apparatus, including cylinder seat,
Rotary core, cyclic sealing gasket and rotatable pipe joint, wherein, cylinder seat, including cylinder body, left end cap and right end cap, in the cylinder body
Sky, the left end cap and right end cap are respectively and fixedly installed to the left side and right side of cylinder body, and the bottom of the cylinder body is provided with two
Delivery connection, arranges before and after two described delivery connections, the inner chamber of described delivery connection and the inner space of cylinder body, and two go out
Angle formed by the center line of oily joint is more than 0 °；
Rotary core, through left end cap and right end cap, may be rotatably mounted on left end cap and right end cap, and its right-hand member is provided with logical
Oil pocket, its side wall is provided with two oil outlets, and described oil outlet is connected with logical oil pocket, and each oil outlet is used for and a delivery connection
It is connected；
Cyclic sealing gasket, loaded on cylinder body, between rotary core and cylinder body, its side wall is going out fixed cover corresponding to each
The position of oily joint is respectively provided with an oil-out connected with delivery connection；
Pipe joint, is connected to the right-hand member of rotary core, and its inner chamber is connected with the logical oil pocket of rotary core.
Preferably, also including the fork for being fixedly connected on rotary core left end.
Preferably, the left end of the rotary core is provided with plug tenon portion, and jack is provided with the fork, the rotary core
Plug tenon portion is stretched in the jack of fork, and baffle plate is installed with the plug tenon portion, and the baffle plate is used to prevent fork from plug tenon
Drop in portion.
Preferably, the baffle plate is arranged in plug tenon portion by bolt, and screwed hole, the spiral shell are provided with the plug tenon portion
Bolt is stretched in the screwed hole in the plug tenon portion through after baffle plate.
Preferably, the lower end of the fork is provided with pin rod.
Preferably, the rotatable pipe joint is detachably connected on rotary core.
Preferably, the rotatable pipe joint includes flexible pipe linkage section and rotary core linkage section, is respectively used to connect flexible pipe
And rotary core, the axis of the flexible pipe linkage section is vertical with the axis of rotary core linkage section, and the flexible pipe linkage section rotatably connects
It is connected on rotary core linkage section.
Preferably, the delivery connection is detachably connected on the bottom of cylinder body.
Preferably, the center line of two delivery connections is different surface beeline.
In general, by the contemplated above technical scheme of the present invention compared with prior art, can obtain down and show
Beneficial effect：
1) present invention can overcome the space body that existing Afterburner fuel manifold testing stand oil-way switching apparatus are excessively simple and crude, occupy
The larger, fuel oil of product has the problem that part is exposed in air, to reduce testing stand size, improves the security of production process；
2) due to being provided with cyclic sealing gasket, it can carry out close well the present invention to oil circuit in rotary core rotary course
Envelope, it is ensured that oil circuit switches over process intermediate fuel oil without leaking, and realize oil return circuit and measure isolating for oil circuit.Therefore avoid
Fuel oil is exposed in air, improves production security；
3) multiple oil-way switching apparatus form a line on testing stand, and the present invention is due to being provided with fork, each oil circuit switching
The fork of device can be linked together by being provided with the strip-shaped steel plate of multiple circular holes.Strip-shaped steel plate is connected with double-acting cylinder, leads to
The flexible unified reciprocally swinging for realizing fork of control double-acting cylinder is crossed, so as to the oil of the upper each shower nozzle oil circuit of house steward is realized in unification
Road switches.Testing stand oil circuit switching part structure can be made compacter, testing stand space is saved；
4) due to being provided with rotatable pipe joint, rotatable pipe joint is detachably connected on rotary core the present invention, and its is soft
The axis of pipe linkage section and the axis perpendicular of rotary core linkage section, the two can be relatively rotated, it can be ensured that in oil circuit handoff procedure
The rotary motion of rotary core, without impact, reduces the deflection and deforming degree of oil-in flexible pipe to oil-in flexible pipe, improves
The service life of oil-in flexible pipe.
Description of the drawings
Fig. 1 is the sectional view of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is along the sectional view of line A-A in Fig. 2；
Fig. 4 is along the sectional view of line B-B in Fig. 2；
Fig. 5 is the front view for installing pin rod in the present invention on fork；
Fig. 6 is the partial view of rotary core in the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each embodiment
Not constituting conflict each other just can be mutually combined.
As shown in Fig. 1～Fig. 6, a kind of oil-way switching apparatus, including cylinder seat 1, rotary core 2, cyclic sealing gasket 3 and rotatable
Pipe joint 4.Wherein, cylinder seat 1, including cylinder body 11, left end cap 12 and right end cap 13, the cylinder body 11 is hollow, the left end cap 12
With the left side and right side that right end cap 13 is respectively and fixedly installed to cylinder body 11, the bottom of the cylinder body 11 is provided with two delivery connections
5, arrange before and after two described delivery connections 5, it is preferable that the delivery connection 5 is detachably connected on the bottom of cylinder body 11.It is described
Delivery connection 5 inner chamber and cylinder body 11 inner space, angle formed by the center line of two delivery connections 5 is more than 0 °；It is preferred that
Ground, the center line of two delivery connections 5 staggers on cylinder body 11 for the delivery connection of different surface beeline, i.e., two 5, every center
Line is 30 ° with the angle of vertical plane, then angle formed by two different surface beelines is 60 °.
Rotary core 2, through left end cap 12 and right end cap 13, may be rotatably mounted on left end cap 12 and right end cap 13, and it is right
End is provided with logical oil pocket 21, and its side wall is provided with two oil outlets 22, and described oil outlet 22 is connected with logical oil pocket 21, and each is fuel-displaced
Hole 22 is used to be connected with a delivery connection 5；
Cyclic sealing gasket 3, loaded in cylinder body 11, between rotary core 2 and cylinder body 11, its side wall is being corresponded to fixed cover
The position of each delivery connection 5 is respectively provided with an oil-out 31 connected with delivery connection 5；Preferably, cyclic sealing gasket 3 and cylinder
Body 11 is fixed together by bonding agent.
Rotatable pipe joint 4, is connected to the right-hand member of rotary core 2, and its inner chamber is connected with the logical oil pocket 21 of rotary core 2.It is excellent
Selection of land, the pipe joint 4 is detachably connected on rotary core 2.Preferably, the rotatable pipe joint 4 includes flexible pipe linkage section
41 and rotary core linkage section 42, it is respectively used to connect flexible pipe and rotary core 2, axis and the rotary core of the flexible pipe linkage section 41 connect
The axis for connecing section is vertical, and the flexible pipe linkage section 41 is rotatably connected on rotary core linkage section 42.Flexible pipe linkage section 41 and rotation
Core linkage section 42 can be relatively rotated, to guarantee oil circuit handoff procedure in rotary core 2 rotary motion to oil-in flexible pipe without shadow
Ring, reduce the deflection and deforming degree of oil-in flexible pipe, improve the service life of oil-in flexible pipe.
Further, the oil-way switching apparatus also include being fixedly connected on the fork 6 of the left end of rotary core 2.Preferably, it is described
The left end of rotary core 2 is provided with plug tenon portion 23, and jack 61 is provided with the fork 6, and the plug tenon portion 23 of the rotary core 2 stretches into
In the jack 61 of fork 6, baffle plate 7 is installed with the plug tenon portion 23, the baffle plate 7 is used to prevent fork 6 from plug tenon portion
23 drop.The baffle plate 7 is arranged in plug tenon portion 23 by bolt, and screwed hole is provided with plug tenon portion 23, and the bolt is passed through
Stretch into after baffle plate 7 in the screwed hole in the plug tenon portion 23.The lower end of the fork 6 is provided with pin rod 8.
In the present invention, oil-way switching apparatus make cylinder body 11 be horizontally fixed on testing stand by the bolt device being vertically arranged
On, fixation faces up, and several oil-way switching apparatus are in one line, unified to control fork 6 toward physical pendulum from a double-acting cylinder
It is dynamic, realize that oil circuit switches.
The one end of rotatable pipe joint 4 is connected with oil inlet hose, and the other end is threadedly coupled with rotary core 2.Oil inlet hose it is another
Shower nozzle on one end connection Afterburner fuel manifold.The left end of the rotary core 2 is provided with plug tenon portion 23, and with the jack of the upper end of fork 6
61 coordinate installation, are fixed by baffle plate 7 and bolt.The bottom of baffle plate 7 is fixed with pin rod 8, for being connected with double-acting cylinder.
There are the cyclic sealing gasket 3 for sealing, the left and right two ends of the cylinder body 11 difference between rotary core 2 and cylinder body 11
Have and fix left end cap 12, right end cap 13 by eight bolts.The left end cap 12, right end cap 13 are played fixed to rotary core 2 and limited
Position effect, and guarantee the flexibility that rotary core 2 is rotated.The side wall of cylinder body 11 is provided with oil discharge passage, is screwed respectively two
Oily joint 5.Two delivery connections 5 connect respectively oil return oil way flexible pipe, metering oil way flexible pipe.
In off working state, fork 6 is in vertical position to the oil-way switching apparatus, as shown in figure 1, the two of rotary core 2
Oil outlet 22 is also in vertical position, is sealed by cyclic sealing gasket 3, and as shown in Figure 3, Figure 4, oil outlet 22 does not have fuel oil stream
Go out.The present invention is connected with the delivery connection 5 on the left side in Fig. 4 with oil return circuit flexible pipe, the delivery connection 5 on the right is soft with metering oil circuit
Pipe is operated principle explanation as a example by being connected.
With reference to Fig. 3, when oil return circuit works, swing in double-acting cylinder effect draft link 6, it is suitable that fork 6 is rotated core 2
Hour hands rotate 30 °, then the one of oil outlet 22 on rotary core 2 is connected with the delivery connection 5 on the left side, another oil outlet 22
Outlet is sealed by cyclic sealing gasket 3, now oil return circuit connection, fuel oil by the logical oil pockets 21 of shower nozzle Jing on Afterburner fuel manifold,
The delivery connection 5 on the left side flows into oil return fuel tank.
With reference to Fig. 4, when metering oil circuit works, swing in double-acting cylinder effect draft link 6, it is inverse that fork 6 is rotated core 2
Hour hands rotate 30 °, then the one of oil outlet 22 on rotary core 2 is connected with the delivery connection 5 on the right, another oil outlet 22
Outlet is sealed by cyclic sealing gasket 3, oil communication is now measured, fuel oil by the logical oil pockets 21 of shower nozzle Jing on Afterburner fuel manifold,
The delivery connection 5 on the right is flowed in measuring container.The reciprocating motion of double-acting cylinder is capable of achieving two kinds of oil return circuits and meter oil oil
Switching between road, when testing stand quits work, double-acting cylinder resets under the action of the spring, and fork 6 is returned to initial
Vertical position, now oil circuit be off.
Each oil-way switching apparatus control one shower nozzle of Afterburner fuel manifold, switching device usage quantity by shower nozzle number
Depending on amount.The oil-way switching apparatus word order is neat on testing stand, and the fork 6 of each oil-way switching apparatus is by being provided with multiple circles
The strip-shaped steel plate in hole links together.Strip-shaped steel plate is connected with double-acting cylinder, by the flexible realization for controlling double-acting cylinder
The unified reciprocally swinging of fork 6, so as to the oil circuit switching of the upper each shower nozzle oil circuit of house steward is realized in unification.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, not to
The present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc. are limited, all should be included
Within protection scope of the present invention.
Claims (8)
1. a kind of oil-way switching apparatus, it is characterised in that：Including cylinder seat (1), rotary core (2), cyclic sealing gasket (3) and rotatable
Pipe joint (4), wherein,
Cylinder seat (1), including cylinder body (11), left end cap (12) and right end cap (13), the cylinder body (11) is hollow, the left end cap
(12) and right end cap (13) is respectively and fixedly installed to the left side and right side of cylinder body (11), the bottom of the cylinder body (11) is provided with two
Arrange before and after individual delivery connection (5), described two delivery connections (5), the inner chamber and cylinder body (11) of described delivery connection (5)
Inner space, angle formed by the center line of two delivery connections (5) is more than 0 °；
Rotary core (2), through left end cap (12) and right end cap (13), may be rotatably mounted at left end cap (12) and right end cap (13)
On, its right-hand member is provided with logical oil pocket (21), and its side wall is provided with two oil outlets (22), described oil outlet (22) and logical oil pocket
(21) connect, each oil outlet (22) with a delivery connection (5) for being connected；
Cyclic sealing gasket (3), loaded on cylinder body (11), it is located between rotary core (2) and cylinder body (11) fixed cover, and its side wall exists
An oil-out (31) connected with delivery connection (5) is respectively provided with corresponding to the position of each delivery connection (5)；
Rotatable pipe joint (4), is connected to the right-hand member of rotary core (2), and its inner chamber is connected with the logical oil pocket (21) of rotary core (2)
It is logical；
The rotatable pipe joint (4) includes flexible pipe linkage section (41) and rotary core linkage section (42), the flexible pipe linkage section
(41) and rotary core linkage section (42) connects respectively oil inlet hose and rotary core (2), the other end connection of the oil inlet hose plus
Shower nozzle on power fuel manifold, the axis of the flexible pipe linkage section (41) is vertical with the axis of rotary core linkage section, the flexible pipe
Linkage section (41) is rotatably connected on rotary core linkage section (42).
2. a kind of oil-way switching apparatus according to claim 1, it is characterised in that：Also include being fixedly connected on rotary core
(2) fork (6) of left end.
3. a kind of oil-way switching apparatus according to claim 2, it is characterised in that：The left end of the rotary core (2) is arranged
There is plug tenon portion (23), jack (61) is provided with the fork (6), the plug tenon portion (23) of the rotary core (2) stretches into fork (6)
Jack (61) in, be installed with baffle plate (7) on the plug tenon portion (23), the baffle plate (7) is for preventing fork (6) from inserting
Tenon portion (23) drops.
4. a kind of oil-way switching apparatus according to claim 3, it is characterised in that：The baffle plate (7) is installed by bolt
On plug tenon portion (23), screwed hole is provided with the plug tenon portion (23), the bolt stretches into the plug tenon through after baffle plate (7)
In the screwed hole in portion (23).
5. a kind of oil-way switching apparatus according to claim 3, it is characterised in that：The lower end of the fork (6) is provided with
Pin rod (8).
6. a kind of oil-way switching apparatus according to claim 1, it is characterised in that：The rotatable pipe joint (4) is removable
Unload and be connected on rotary core (2).
7. a kind of oil-way switching apparatus according to claim 1, it is characterised in that：The delivery connection (5) detachably connects
It is connected on the bottom of cylinder body (11).
8. a kind of oil-way switching apparatus according to claim 1, it is characterised in that：The center line of two delivery connections (5)
For different surface beeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190206.XA CN104791522B (en) | 2015-04-15 | 2015-04-15 | Oil-way switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190206.XA CN104791522B (en) | 2015-04-15 | 2015-04-15 | Oil-way switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104791522A CN104791522A (en) | 2015-07-22 |
| CN104791522B true CN104791522B (en) | 2017-05-10 |
Family
ID=53556565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190206.XA Expired - Fee Related CN104791522B (en) | 2015-04-15 | 2015-04-15 | Oil-way switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104791522B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243228A1 (en) * | 2020-05-28 | 2021-12-02 | Nike Innovate C.V. | Sealed connection with a rotatable valve stem and foot support system with a rotatable valve stem |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795182B (en) * | 2020-08-06 | 2021-04-13 | 森隆流体科技(深圳)有限公司 | Hydraulic valve for switching oil way and flow |
| CN112697436A (en) * | 2020-11-16 | 2021-04-23 | 中国航发沈阳黎明航空发动机有限责任公司 | Oil collecting method used in flow test of stress application fuel oil main pipe |
| FR3142457A1 (en) * | 2022-11-24 | 2024-05-31 | Safran Aircraft Engines | PROPULSIVE ASSEMBLY FOR AN AIRCRAFT |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139674A (en) * | 2014-07-30 | 2014-11-12 | 武汉元丰汽车技术发展有限公司 | Trailer tire autoinflation wheel side axle tube type rotating joint and air pipe assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2353982Y (en) * | 1998-02-24 | 1999-12-15 | 刘岩 | Hollow rotary-stopper three-function fuel-oil valve |
| US6681805B2 (en) * | 2001-11-28 | 2004-01-27 | Ranco Incorporated Of Delaware | Automotive coolant control valve |
| CN100419315C (en) * | 2006-11-08 | 2008-09-17 | 大连创思福液力偶合器成套设备有限公司 | Revolving switch valve |
| WO2008155938A1 (en) * | 2007-06-20 | 2008-12-24 | Terumo Kabushiki Kaisha | Multiway cock and liquid dispensing circuit |
| CN202149248U (en) * | 2011-07-08 | 2012-02-22 | 上海创力集团股份有限公司 | Shunt valve for mining machinery |
| US8919378B2 (en) * | 2012-04-04 | 2014-12-30 | GM Global Technology Operations LLC | Compact electrically controlled four-way valve with port mixing |
| CN203297673U (en) * | 2013-04-27 | 2013-11-20 | 广东易山重工股份有限公司 | Valve core for pitch circulation control valve |
-
2015
- 2015-04-15 CN CN201510190206.XA patent/CN104791522B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139674A (en) * | 2014-07-30 | 2014-11-12 | 武汉元丰汽车技术发展有限公司 | Trailer tire autoinflation wheel side axle tube type rotating joint and air pipe assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021243228A1 (en) * | 2020-05-28 | 2021-12-02 | Nike Innovate C.V. | Sealed connection with a rotatable valve stem and foot support system with a rotatable valve stem |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104791522A (en) | 2015-07-22 |
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