CN103982680A - Shuttle valve and shuttle valve assembled rotary vane type steering gear - Google Patents
Shuttle valve and shuttle valve assembled rotary vane type steering gear Download PDFInfo
- Publication number
- CN103982680A CN103982680A CN201410199635.9A CN201410199635A CN103982680A CN 103982680 A CN103982680 A CN 103982680A CN 201410199635 A CN201410199635 A CN 201410199635A CN 103982680 A CN103982680 A CN 103982680A
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- Prior art keywords
- chamber
- shuttle valve
- valve
- valve body
- stator
- 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
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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
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/08—Steering gear
- B63H25/14—Steering gear power assisted; power driven, i.e. using steering engine
- B63H25/26—Steering engines
- B63H25/28—Steering engines of fluid type
- B63H25/30—Steering engines of fluid type hydraulic
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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
- 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
- F16K1/42—Valve seats
- F16K1/422—Valve seats attachable by a threaded connection to the housing
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
-
- 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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a shuttle valve and a shuttle valve assembled rotary vane type steering gear. The shuttle valve comprises a valve body and valve seats, wherein valve body chambers are arranged at the two ends of the valve body, and the hollow valve seats are assembled in the valve body chambers; annular convex sealing weirs are arranged on the sidewall of the valve body, a longitudinal oil passage and a transverse oil passage are arranged in the valve body, a spring and sealing steel balls are arranged in the longitudinal oil passage, and outlets of the transverse oil passage are located among the annular convex sealing weirs. The shuttle valve assembled rotary vane type steering gear comprises a rotor, a stator and stationary vanes, wherein the rotor contains rotary vanes; the rotary vanes and the stationary vanes are alternately arranged and partition a gap between the rotor and the stator into closed spaces which are arranged sequentially, and every two adjacent closed spaces respectively consist of a chamber A and a chamber B; at least one sealing groove is formed in the junction of each rotary vane and the stator, at least one sealing groove is formed in the junction of each stationary vane and the rotor, and sealing strips are arranged in the sealing grooves; each shuttle valve is mounted on the rotary and stationary vanes which are located between the chambers (A and B), and the chambers (A and B) serve as high-pressure chambers or oil return chambers under the control of a reversing valve.
Description
Technical field
The present invention relates to the shuttle valve that a rotary vane type steering gear is used, especially a kind of shuttle valve that is installed on steering wheel rotating vane, stator blade inside.
Background technique
Rotary vane type steering gear is that current ship domain is than a kind of loof mechanism of higher-end.Inner at rotary vane type steering gear, there are stator blade and rotating vane that oil pocket is divided into high low pressure chamber.Hyperbaric chamber pressure oil promotes rotating vane and moves to low-pressure cavity, thereby realize, comes about.For guaranteeing effective isolation in high low pressure chamber, at the relative movement face of rotating vane and stator blade, Stamping Steel Ribbon need to be installed.The needs of Stamping Steel Ribbon are installed between erecting stage for steering wheel, must be left necessary gap guarantee to Stamping Steel Ribbon and install smoothly, be unlikely Stamping Steel Ribbon is brought to damage.And good sealing effect can significantly reduce interior leakage, effectively keep the operating pressure differential between low-pressure cavity, thereby guarantee rudder moment.
Guarantee that the conventional method of sealing is to beat a plurality of spring eyes at sealing strip mounting groove, in the hole at the bottom of most of mounting groove of spring.In assembly process, both can guarantee necessary operating clearance, and assemble rear spring Stamping Steel Ribbon is ejected to eat up gap, guarantee sealing.This method, and constant due to spring force, along with the increase of high low pressure chamber pressure reduction, interior leakage can strengthen, and affects sealing effect.
Summary of the invention
The object of the invention is to, for the poor practical problem of Stamping Steel Ribbon sealability between rotary vane type steering gear work mesohigh chamber and oil back chamber, provide a kind of the shuttle valve of pressure oil and the rotary vane type steering gear of being assembled by this shuttle valve can be provided for Stamping Steel Ribbon.
The object of the present invention is achieved like this: a kind of shuttle valve, comprise valve body, valve seat, it is characterized in that: valve body two ends are provided with valve body chamber, the outer wall in valve body chamber, one end is provided with installation outside thread, the end in the other end valve body chamber is provided with cross groove, is furnished with hollow valve seat in valve body chamber; The sidewall of valve body is provided with the protruding weir of the parallel ring packing of twice; In valve body, be provided with overlapping with medial axis and connect longitudinal oil duct in two valve body chambeies and the horizontal oil duct intersecting with longitudinal oil duct; Longitudinally in oil duct, be provided with spring, the two ends of spring are provided with sealing steel ball, and sealing steel ball is butted on hollow valve seat under the effect of spring, and laterally the outlet of the two ends of oil duct is between the protruding weir of twice ring packing.
In the present invention: described hollow valve seat one end is the valve seat of sealing steel ball, the other end is regular hexagon hole, outer wall is provided with outside thread, is provided with the internal thread mating with the outside thread of hollow valve seat outer wall in valve body chamber, and hollow valve seat end face and connecting part, valve body chamber are furnished with seal washer; The protruding weir of ring packing is provided with closure gasket groove, is furnished with seal ring in closure gasket groove, and in described closure gasket groove, being furnished with seal ring is O shape circle.
A rotary vane type steering gear of being assembled by above-mentioned shuttle valve, comprises the rotor, stator and the stator blade that contain rotating vane, it is characterized in that, rotating vane is evenly distributed on rotor periphery, and the stator blade of single-candidate is uniformly distributed and is fixedly mounted on stator; Rotating vane and stator blade alternately and by rotor and the gap between stator be divided into the confined space being arranged in order, adjacent confined space is respectively A chamber and B chamber; The connecting part of the connecting part of rotating vane and stator and stator blade and rotor is all at least provided with a road sealing groove, is furnished with Stamping Steel Ribbon in seal groove; Described shuttle valve is arranged on the rotating vane and stator blade between A, B chamber by shuttle valve mounting hole; A, B chamber are under the control of selector valve, or as hyperbaric chamber or as oil back chamber.
In the rotary vane type steering gear of being assembled by above-mentioned shuttle valve, the connecting part of the connecting part of rotating vane and stator and stator blade and rotor is equipped with two seals groove, is furnished with Stamping Steel Ribbon in seal groove; Mate with the protruding weir of twice ring packing of described shuttle valve in the aperture of shuttle valve mounting hole, in shuttle valve mounting hole, be provided with the internal thread mating with the installation outside thread of described shuttle valve one end valve body cavity outer wall, described shuttle valve is arranged on the rotating vane and stator blade between A, B chamber by shuttle valve mounting hole.
In the rotary vane type steering gear of being assembled by above-mentioned shuttle valve, the chamber between the shuttle valve mounting hole protruding weir of ring packing parallel with shuttle valve twice is linked up by oil duct and seal groove.
The invention has the advantages that: in the valve body due to shuttle valve, be provided with overlapping with medial axis and connect longitudinal oil duct in two valve body chambeies, and the horizontal oil duct intersecting with longitudinal oil duct, longitudinally in oil duct, be provided with spring, the two ends of spring are provided with sealing steel ball, can be by longitudinal oil duct medi-spring and sealing steel ball, selectively the oil in hyperbaric chamber is imported to horizontal oil duct, for Stamping Steel Ribbon in rotary vane type steering gear provides high pressure oil, improve the sealability of Stamping Steel Ribbon; Because the outer wall in the valve body chamber, one end of shuttle valve is provided with installation outside thread, the end in the other end valve body chamber is provided with cross groove, in valve body chamber, is furnished with hollow valve seat, hollow valve seat center is regular hexagon hole, outer wall is provided with outside thread, in valve body chamber, be provided with the internal thread of coupling, the compact structure of valve body is easy to assembly; Because being provided with the protruding weir of the parallel ring packing of twice, the sidewall of valve body is placed in after shuttle valve mounting hole when shuttle valve, between the parallel protruding weir of ring packing of twice and shuttle valve mounting hole, can form the balanced chamber of high pressure, the high pressure oil that is entered the balanced chamber of high pressure by the horizontal oil duct of shuttle valve can provide balanced high pressure for the sealing strip in seal groove by oil duct, guarantees the reliability of sealing strip sealing; Owing to hollow valve seat end face and connecting part, valve body chamber being furnished with combined seal ring, the protruding weir of ring packing is provided with closure gasket groove, in closure gasket groove, is furnished with seal ring, simultaneously, mate on the corresponding aperture of shuttle valve mounting hole and the protruding weir of twice ring packing of described shuttle valve, can effectively stop between the hydraulic oil of shuttle valve both sides different pressures and interpenetrate, guarantee the reliable of rotary vane type steering gear work; Because the outer wall in valve body chamber, one end is provided with installation outside thread, the end in the other end valve body chamber is provided with cross groove, in shuttle valve mounting hole, be provided with the internal thread mating with the installation outside thread of described shuttle valve one end valve body cavity outer wall, by end, be the instrument of a word or cross, just shuttle valve can easily be installed in shuttle valve mounting hole or removed.
Accompanying drawing explanation
Fig. 1 is shuttle valve embodiment's of the present invention structural representation.
Fig. 2 is shuttle valve valve body embodiment's structural representation.
Fig. 3 is hollow valve seat embodiment's structural representation.
Fig. 4 is the rotary vane type steering gear structural representation by the shuttle valve assembling the present invention relates to.
Fig. 5 is the I partial enlarged drawing of Fig. 4.
In figure: 1, sealing steel ball; 2, spring; 3, seal ring; 4, seal washer; 5, hollow valve seat; 6, valve body; 7, stator blade; 8, A chamber; 9, rotating vane; 10, B chamber; 11, stator; 12, Stamping Steel Ribbon; 13, valve body chamber; 14, outside thread is installed; 15, cross groove; 16, the protruding weir of ring packing; 17, longitudinal oil duct; 18, horizontal oil duct; 19, regular hexagon hole; 20, closure gasket groove; 21, rotor.
Embodiment
From Fig. 1, Fig. 2 and Fig. 3, shuttle valve of the present invention comprises valve body 6, valve seat, and valve body 6 two ends are provided with valve body chamber 13, and the outer wall in valve body chamber, one end 13 is provided with installs outside thread 14, the end in the other end valve body chamber 13 is provided with cross groove 15, is furnished with hollow valve seat 5 in valve body chamber 13; The sidewall of valve body 6 is provided with the protruding weir 16 of the parallel ring packing of twice; In valve body 6, be provided with overlapping with medial axis and connect longitudinal oil duct 17 in two valve body chambeies and the horizontal oil duct 18 intersecting with longitudinal oil duct 17; Longitudinally in oil duct 17, be provided with spring 2, the two ends of spring 2 are provided with sealing steel ball 1, and sealing steel ball 1 is butted on hollow valve seat 5 under the effect of spring 2, and laterally the outlet of the two ends of oil duct 18 is between the protruding weir 16 of twice ring packing.Hollow valve seat 5 one end are the valve seat of sealing steel ball 1, the other end is regular hexagon hole 19, outer wall is provided with outside thread, is provided with the internal thread mating with the outside thread of hollow valve seat 5 outer walls in valve body chamber 13, and hollow valve seat 5 end faces and 13 connecting parts, valve body chamber are furnished with seal washer 4; The protruding weir 16 of ring packing is provided with closure gasket groove 20, is furnished with seal ring 3 in closure gasket groove 20.Described seal ring 3 is O shape circle.
During shuttle valve assembling, as long as spring 2 is placed in to longitudinal oil duct 17, pack sealing steel ball 1 and seal washer 4 into, two ends screw in valve body chamber 13 by inner hexagon spanner by hollow valve seat 5 again and can complete simultaneously.
From Fig. 4 and Fig. 5, a kind of rotary vane type steering gear of being assembled by above-mentioned shuttle valve, comprises the rotor 21, stator 11 and the stator blade 7 that contain rotating vane 9, and wherein, rotating vane 9 is evenly distributed on rotor 21 peripheries, and the stator blade 7 of single-candidate is uniformly distributed and is fixedly mounted on stator 11; Rotating vane 9 and stator blade 7 alternately and by rotor 21 and the gap between stator 11 be divided into the confined space being arranged in order, adjacent confined space is respectively A chamber 8 and B chamber 10; Rotating vane 9 is all at least provided with a road sealing groove with connecting part and the stator blade 7 of stator 11 with the connecting part of rotor 21, is furnished with Stamping Steel Ribbon 12 in seal groove; Described shuttle valve is arranged on the rotating vane 9 and stator blade 7 between A, B chamber by shuttle valve mounting hole; A, B chamber are under the control of selector valve, or as hyperbaric chamber or as oil back chamber.
In the present embodiment, rotating vane 9 is equipped with two seals groove with connecting part and the stator blade 7 of stator 11 with the connecting part of rotor 21, in seal groove, be furnished with Stamping Steel Ribbon 12, the chamber between the protruding weir 16 of the shuttle valve mounting hole ring packing parallel with shuttle valve twice is linked up by oil duct and seal groove.Mate with the protruding weir 16 of twice ring packing of described shuttle valve in the aperture of shuttle valve mounting hole, in shuttle valve mounting hole, be provided with the internal thread mating with the installation outside thread 14 of valve body chamber, described shuttle valve one end 13 outer walls, described shuttle valve is arranged on the rotating vane 9 and stator blade 7 between A, B chamber by shuttle valve mounting hole.
In maintenance, can by end, be the instrument of a word or cross, by the cross groove 15 of shuttle valve end, just shuttle valve can easily be removed in shuttle valve mounting hole or installed.
In use, when not needing to come about, A chamber 8 and B chamber 10 be in state of equilibrium, and longitudinal oil duct 17 of shuttle valve and laterally oil duct 18 have held and inject and hydraulic oil that pressure is higher; When needs are come about, under the control of selector valve, can change at any time the role of A chamber 8 and B chamber 10: when A chamber 8 is as hyperbaric chamber, B chamber 10 is during as oil back chamber, under the effect of high pressure oil, A chamber 8 spaces will expand, and B chamber 10 spaces are by compressed, now high pressure oil promotion rotating vane 9 moves to B chamber 10, and synchronously drives rotor 21 realizations to come about; The elastic force that simultaneously high pressure oil of A chamber 8 overcomes spring 2 enters horizontal oil duct 18, provides pressure for sealing strip 12, and sealing strip 12 releases are held out against by oil duct.Otherwise, B chamber 10 space enlargement, A chamber 80 spaces are compressed, promote rotating vane 9 and move to A chamber 8, and synchronously drive rotor 21 realizations to come about; The elastic force that the high pressure oil of while B chamber 10 overcomes spring 2 enters horizontal oil duct 18, by oil duct, for sealing strip 12 provides pressure, sealing strip 12 releases is held out against.Being pushed out the sealing strip 12 holding out against will increase the reliability of sealing.
Claims (6)
1. a shuttle valve, comprises valve body, valve seat, it is characterized in that: valve body two ends are provided with valve body chamber, and the outer wall in valve body chamber, one end is provided with installation outside thread, and the end in the other end valve body chamber is provided with cross groove, is furnished with hollow valve seat in valve body chamber; The sidewall of valve body is provided with the protruding weir of the parallel ring packing of twice; In valve body, be provided with overlapping with medial axis and connect longitudinal oil duct in two valve body chambeies and the horizontal oil duct intersecting with longitudinal oil duct; Longitudinally in oil duct, be provided with spring, the two ends of spring are provided with sealing steel ball, and sealing steel ball is butted on hollow valve seat under the effect of spring, and laterally the outlet of the two ends of oil duct is between the protruding weir of twice ring packing.
2. shuttle valve according to claim 1, it is characterized in that: described hollow valve seat one end is the valve seat of sealing steel ball, the other end is regular hexagon hole, outer wall is provided with outside thread, in valve body chamber, be provided with the internal thread mating with the outside thread of hollow valve seat outer wall, hollow valve seat end face and connecting part, valve body chamber are furnished with seal washer; The protruding weir of ring packing is provided with closure gasket groove, is furnished with seal ring in closure gasket groove.
3. shuttle valve according to claim 2, is characterized in that: in described closure gasket groove, being furnished with seal ring is O shape circle.
4. by a rotary vane type steering gear for shuttle valve assembling described in claim 1 or 2 or 3, comprise the rotor, stator and the stator blade that contain rotating vane, it is characterized in that, rotating vane is evenly distributed on rotor periphery, and the stator blade of single-candidate is uniformly distributed and is fixedly mounted on stator; Rotating vane and stator blade alternately and by rotor and the gap between stator be divided into the confined space being arranged in order, adjacent confined space is respectively A chamber and B chamber; The connecting part of the connecting part of rotating vane and stator and stator blade and rotor is all at least provided with a road sealing groove, is furnished with Stamping Steel Ribbon in seal groove; Described shuttle valve is arranged on the rotating vane and stator blade between A, B chamber by shuttle valve mounting hole; A, B chamber are under the control of selector valve, or as hyperbaric chamber or as oil back chamber.
5. rotary vane type steering gear according to claim 4, is characterized in that, the connecting part of the connecting part of rotating vane and stator and stator blade and rotor is equipped with two seals groove, is furnished with Stamping Steel Ribbon in seal groove; Mate with the protruding weir of twice ring packing of described shuttle valve in the aperture of shuttle valve mounting hole, in shuttle valve mounting hole, be provided with the internal thread mating with the installation outside thread of described shuttle valve one end valve body cavity outer wall, described shuttle valve is arranged on the rotating vane and stator blade between A, B chamber by shuttle valve mounting hole.
6. rotary vane type steering gear according to claim 5, is characterized in that, the chamber between the shuttle valve mounting hole protruding weir of ring packing parallel with shuttle valve twice is linked up by oil duct and seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199635.9A CN103982680A (en) | 2014-05-13 | 2014-05-13 | Shuttle valve and shuttle valve assembled rotary vane type steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199635.9A CN103982680A (en) | 2014-05-13 | 2014-05-13 | Shuttle valve and shuttle valve assembled rotary vane type steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982680A true CN103982680A (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410199635.9A Pending CN103982680A (en) | 2014-05-13 | 2014-05-13 | Shuttle valve and shuttle valve assembled rotary vane type steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982680A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428502A (en) * | 2016-08-30 | 2017-02-22 | 武汉船用机械有限责任公司 | Rotating blade type steering engine packaged type rotor structure and processing method of cambered surface of blade of rotating blade type steering engine packaged type rotor structure |
| WO2018058756A1 (en) * | 2016-09-27 | 2018-04-05 | 惠州科赛医疗有限公司 | Switchover valve |
| CN108150693A (en) * | 2017-11-30 | 2018-06-12 | 北京天恒长鹰科技股份有限公司 | For the double remaining valvings of leading screw rotating nuts of near space dirigible |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006214496A (en) * | 2005-02-03 | 2006-08-17 | Japan Hamuwaaji Kk | Sealing structure of rotary vane type helm machine |
| JP2008037187A (en) * | 2006-08-03 | 2008-02-21 | Japan Hamuwaaji Kk | Rotary vane type helm machine |
| CN201162858Y (en) * | 2008-02-01 | 2008-12-10 | 合肥长源液压件有限责任公司 | Integration type easily maintained shuttle valve |
| CN201502745U (en) * | 2009-08-24 | 2010-06-09 | 武汉市天虹仪表有限责任公司 | Shuttle valve capable of distributing fluid flow |
| JP2012035718A (en) * | 2010-08-06 | 2012-02-23 | Japan Hamuwaaji Kk | Sealing device of rotary vane type helm machine |
-
2014
- 2014-05-13 CN CN201410199635.9A patent/CN103982680A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006214496A (en) * | 2005-02-03 | 2006-08-17 | Japan Hamuwaaji Kk | Sealing structure of rotary vane type helm machine |
| JP2008037187A (en) * | 2006-08-03 | 2008-02-21 | Japan Hamuwaaji Kk | Rotary vane type helm machine |
| CN201162858Y (en) * | 2008-02-01 | 2008-12-10 | 合肥长源液压件有限责任公司 | Integration type easily maintained shuttle valve |
| CN201502745U (en) * | 2009-08-24 | 2010-06-09 | 武汉市天虹仪表有限责任公司 | Shuttle valve capable of distributing fluid flow |
| JP2012035718A (en) * | 2010-08-06 | 2012-02-23 | Japan Hamuwaaji Kk | Sealing device of rotary vane type helm machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428502A (en) * | 2016-08-30 | 2017-02-22 | 武汉船用机械有限责任公司 | Rotating blade type steering engine packaged type rotor structure and processing method of cambered surface of blade of rotating blade type steering engine packaged type rotor structure |
| CN106428502B (en) * | 2016-08-30 | 2019-02-05 | 武汉船用机械有限责任公司 | The processing method of rotary vane type steering gear assembled rotor structure and its blade cambered surface |
| WO2018058756A1 (en) * | 2016-09-27 | 2018-04-05 | 惠州科赛医疗有限公司 | Switchover valve |
| CN108150693A (en) * | 2017-11-30 | 2018-06-12 | 北京天恒长鹰科技股份有限公司 | For the double remaining valvings of leading screw rotating nuts of near space dirigible |
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| PB01 | Publication | ||
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Application publication date: 20140813 |