CN104895859B - The valve module of function is kept with load - Google Patents
The valve module of function is kept with load Download PDFInfo
- Publication number
- CN104895859B CN104895859B CN201510097531.1A CN201510097531A CN104895859B CN 104895859 B CN104895859 B CN 104895859B CN 201510097531 A CN201510097531 A CN 201510097531A CN 104895859 B CN104895859 B CN 104895859B
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- Prior art keywords
- valve
- valve body
- control room
- valve seat
- shell
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000005553 drilling Methods 0.000 claims description 39
- 239000012530 fluid Substances 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 2
- 230000002045 lasting effect Effects 0.000 claims 2
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 210000000635 valve cell Anatomy 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
- F15B13/015—Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to the valve modules that function is kept with load.The first valve seat on shell can be closed with the primary sealing area on the first valve body, shell has the first and second operating rooms, the volume for the first control room that first valve body joint shell limits becomes smaller when the first valve body leaves the first valve seat, the free cross section that shell and the first valve body limit first throttle mechanism jointly becomes larger when the first valve body leaves the first valve seat, first and second control room is connected by first throttle mechanism, and second connect or overlap with the first control room.The valve body different from the first valve body is movably accommodated in the housing, thus the second valve seat on shell can be closed with the secondary sealing area on the valve body, second operating room is connect by the second valve seat with the second control room, make the pressure acted on from the second operating room by the valve body pressure from the second valve seat, the valve body is pressed to the second valve seat by the pressure acted on from the second control room, and the second operating room is connect by precontrol valve and around the second valve seat with the second control room.
Description
Technical field
The present invention relates to one kind pressing claim 1 valve module as described in the preamble.
Background technology
A kind of valve module as known to 4 779 836 A1 of US.Valve module includes shell, is held in a manner of movable in shell
The first valve body is contain, thus the first valve seat on shell can be closed with the primary sealing area on the first valve body.In addition, shell
With the first and second operating rooms, these operating rooms are connected by the first valve seat.Flowing can be adjusted by mobile first valve body
Resistance, flow resistance fight the pressure fluid that the second operating room is flowed to from the first operating room.
In order to adjust the position of the first valve body, if the first control room, the first control room is limited in this way by the first valve body and shell
Deckle circle so that when the first valve body leaves mobile from the first valve seat, the volume of first control room persistently becomes smaller.Additionally set
First throttle mechanism, by the first valve body and shell limited boundary and when the first valve body leaves mobile from the first valve seat, the
The free cross section of one throttle mechanism persistently becomes larger.Second operating room is connect by first throttle mechanism with the second control room,
Second control room overlaps in 4 779 836 A1 of US with the first control room.Furthermore, it is possible to which one is controlled by an auxiliary valve
Volume flow processed is exported from the first control room.The position of first valve body adjusts in this way so that flows to the second work from the first operating room
The main volume flow approximation for making room is proportional to control volume flow.With smaller control volume flow can control one it is larger
Main volume flow.Main volume flow mutually also controls indoor compressions with first and second outside the Pass in addition to the adjustment with auxiliary valve
It is related.
One, which can be both controlled, with the valve module by 4 779 836 A1 of US flows to the second operating room from the first operating room
Volume flow can also control a volume flow flowed in opposite direction.
Invention content
It is an advantage of the present invention that being only related to the through-flow of the first operating room to the second operating room can complete to volume
The control of flow, wherein valve module automatically, block to No leakage the fluid stream flowed in opposite direction.By the valve of the present invention
Therefore component bears the function of load holding valve, expended without comparing the well known apparent enlarged configuration of valve module.
According to it is proposed that, one be different from the first valve body the second valve body be displaceably accommodated in shell
In, thus the second valve seat on shell can be closed with the secondary sealing area on the second valve body, wherein the second operating room passes through
Second valve seat is connect with the second control room in this way so that the pressure acted on from the second operating room is by the second valve body pressure from second
Valve seat, wherein the pressure acted on from the second control room presses the second valve body towards the second valve seat, wherein the second operating room is logical
It crosses a precontrol valve and is connect with the second control room around the second valve seat.Precontrol valve is preferably arranged such,
It is allow selectively to block or release connection of second operating room to the second control room.
When flowing valve module towards the second operating room from the first operating room, it is more than the in the first indoor pressure of work
The two indoor pressure of work.Therefore indoor pressure is controlled also greater than in the second indoor pressure of work in the first or second.The
Two valve bodies correspondingly close the second valve seat, as long as precontrol valve is to be closed.Once precontrol valve is opened, pressure fluid
It is flowed out from first or second control room towards the second operating room.Indoor pressure is controlled in the first or second thus to decline, thus
Second valve seat is opened.Corresponding with this to be, already mentioned pre-control volume flow flows to second from first or second control room
Operating room and above-mentioned control to main volume flow has occurred.
If being at this moment increased beyond in the first indoor pressure of work, then the second valve body quilt in the second indoor pressure of work
It is independently lifted from the second valve seat with the position of precontrol valve.Pressure fluid flows into the first control room from the second operating room.First control
Thus the volume of room processed expands, therefore the primary sealing area of the first valve body is pressed towards the first valve seat.Therefore from the first operating room to
The connection of second operating room is hermetically sealed.Thus be excluded that pressure fluid from the second operating room flows to the first operating room.
A channel in shell can be mentioned with the first and/or second operating room, which has the appearance in shell
An access apertures on face, thus another individual structural unit can be connected thereto.But it relates to one collecting
At valve cell in inside interface channel, the integrated valve cell in addition to by the present invention valve module outside also have in addition
The functional unit of hydraulic pressure.Valve module is used preferably in combination with incompressible pressure fluid, especially hydraulic oil.
The advantageous extension design and evolutionary approach of the present invention are illustrated in the dependent claims.
Precontrol valve can be configured to centre valve（Sitzventil）.Thus be excluded that first valve seat is based on precontrol valve
Undesirable leakage and opened alone.Corresponding valve body is preferably configured to extended cylinder, has cone
End face, the end face are used as sealing surface.
First operating room can be connect by a check-valves with first throttle mechanism, the first check-valve only allow for from
Fluid stream of first operating room to first throttle mechanism, wherein check-valves is configured to the form of centre valve.Thus also first
Ensure that pressure fluid is only capable of flowing out from first or second control room by the second valve body when the compression fluctuated in operating room, thus
Only precontrol valve is conclusive to the adjustment of main volume flow.The design scheme of valve is also caused in valve group centered in addition,
Blocking for part does not occur undesirable leakage in operating status.
Precontrol valve may include a magnetic coil and a magnetic armature, wherein and precontrol valve can be manipulated by magnetic armature,
Wherein, magnetic coil is mutually coordinated consistent in this way with magnetic armature so that when electric current of the position of magnetic armature in magnetic coil changes not
Change disconnectedly.Thus, it is possible to constantly adjust pre-control volume flow and thus main volume flow.Here, it is noted that the overwhelming majority
Known magnetic handle structure is all switching mode type, that is to say, that magnetic armature one of is only capable of in two final positions
Interior movement.The harmonious appropriate space preferably by nonmagnetic stream interruptive area in the pole pipe for surrounding armature
Arrangement is realized.
Magnetic armature can be pre-tightened with a spring in the position of a block of precontrol valve.It thus ensures, preceding
Be not in undesirable movement on the actuator on being connected to operating room when the magnetic triggering failure stated.From the first operating room
Connection to the second operating room is safely blocked in this case.
First control room can be separated with the second control room（gesondert）Construction, wherein the second control room is included in shell
The first annular groove in body, the first annular groove surround the first valve body.Thus ensure first throttle mechanism with the first valve body in the housing
Turned position be independently passed through the first annular groove always.First throttle mechanism is preferably included on the periphery of the first valve body extremely
A few gap.
First valve body can stick between the first annular groove and the first control room on shell.Thus prevent the first valve body
Warpage in the housing, thus the first valve body is no longer able to move.Here, it is noted that for the tendency of warpage above all
Ratio between the diameter and the length of sliding guiding of the first valve body.In addition second throttle body, especially its control side
Edge is protected from being damaged when installing the first valve body in first shell.
First and second control rooms can be only connected with each other by second throttle body.In the first valve body, pressure
Fluid exchanges between the first and second control rooms.This fluid stream flows is by second throttle body, thus the first valve body
Movement is mitigated.As a result the first valve body is reduction of to cause to tremble the risk of formula movement.Second throttle body can be by
The channel of a closure in one valve body, especially one drilling or open by one on the outer circumference surface of the first valve body
Channel, especially notch are formed.But the channel of a closure can also be set in the housing.
Free cross section on the first valve seat can be according to a non-directional fisrt feature line with the first valve body
It moves and constantly changes.This characteristic curve can with parabola extend.
One front adjacent with primary sealing area of the first valve body at least can adjacent to primary sealing area be configured to
It is convexly curved.It is possible thereby to adjust fisrt feature line.
First valve body can have multiple the first drillings radially extended about its direction of motion, these the first drilling bases
The position of first valve body is covered or do not covered by shell by shell, wherein the first drilling is contacted with the first valve seat.By selecting
The appropriate arrangement of one drilling and appropriate diameter can adjust fisrt feature line.
When the first valve seat is closed by the first valve body, first throttle mechanism can have there are one be not equal to zero free cross
Section.Hence improve the fine controllability of valve module.It can be especially used alone to adjust minimum main volume flow
Precontrol valve.First valve seat keeps completely enclosed under this operating condition, that is to say, that pressure current is from the first operating room via the
One throttle mechanism flows into the second control room and continues to flow into the second operating room individually through precontrol valve there.
It the free cross section of first throttle mechanism can be according to non-directional second feature line with the movement of the first valve body
And constantly change.Linear second feature line can also be used.
Certainly, above-mentioned and next can not only also be used the feature of explaination with the combination illustrated respectively, and
And in others combine or can also be used individually, without departing from the frame of the present invention.
Description of the drawings
Next the present invention is illustrated in detail by attached drawing.In attached drawing：
Fig. 1 is the sectional view by the valve module of the first form of implementation of the present invention；
Fig. 2 is the details of the view by Fig. 1 in the region of check-valves；
Fig. 3 is the details of the view by Fig. 1 in the region of the second valve body；
Fig. 4 is the partial sectional view in the region of the first valve seat by the valve module of second of form of implementation of the present invention；
And
Fig. 5 is the broken section in the region of first throttle mechanism by the valve module of the third form of implementation of the present invention
Figure.
Specific implementation mode
Fig. 1 shows the sectional view of the valve module 10 of the first form of implementation by the present invention.Valve module 10 includes one
Shell 20, shell can be by 31,32 groups of the first, second, and third housing parts 23,24,25 and the first and second blind bolts
At, wherein these referred parts are firmly connected with each other.Valve body 40 about the direction of motion 15 horizontal in Fig. 1 can transport
Dynamic mode is accommodated in first shell part 23.The periphery of first valve body 40 has the first and concentric second cylinder
Region 41,42, wherein the diameter in the second cylindrical region 42 is less than the diameter in the first cylindrical region 41.First
And second arrange the primary sealing area for being configured to cone between cylindrical region 41,42（44 in Fig. 1）.It is first
First valve seat is arranged in sealing surface 44（43 in Fig. 2）, the first valve seat by 44 position shown in of primary sealing area without letting out
Leakage it is sealed shut.The line that first valve seat 43 extends along a circular ring shape around the first valve body 40 contacts primary sealing area
44。
The first and second cylindrical drillings 29,30 in the housing are attached with minimum gap and the first valve body 40
The first and second cylindrical regions 41,42 match, thus the first valve body 40 can also be moved slightly, wherein almost not had
There is pressure current that can pass through corresponding gap.In addition, shell has the first and second annular grooves 26,27, these annular grooves circlewise wrap
Enclose the first valve body 40.The left side is disposed in by the first valve body 40 third annular groove 28 in Fig. 1.
Third annular groove 28 combines the channel being connected thereto and forms the first operating room 21, the first operating room preferably at least between
Grounding connection is in a pressure fluid source, especially on hydraulic pump.Second annular groove 27 is combined the channel being connected thereto and is formd
Second operating room 22, the second operating room are preferably at least connected with actuator, such as hydraulic cylinder indirectly.First annular groove 26 is second
The component part of control room 12, the second control room include a channel for leading to the second valve body 70 in addition.
First control room 11 is by the front limited boundary of shell 20 and the first valve body 40.It is screwed into first shell part 23
First blind bolt 31, is deemed to be the component part of shell 20 herein.Third blind bolt 65 is screwed into the first valve body 40
In front, thus the second valve body 40 is closed with being fluid-tight there.First control room, 11 outside only connection passes through
Second throttle body 14 extends towards the second control room 12.Here, it is noted that the second valve body 40 is controlled first and second
It is all sticked in the first cylindrical drilling 29 in its whole circumference between room 11,12.
The spring 48 for being preferably configured to helical spring is tightly contained in advance in the first control room 11, thus the first valve body
40 are pressed towards the first valve seat with its primary sealing area.Once the first valve body 40 due to the pressure-loaded from the first operating room and by
It is lifted from the first valve seat, then the volume of the first control room 11 just reduces, wherein corresponding incompressible pressure fluid passes through
Second throttle body 14 is flowed out towards the second control room 12.Pressure fluid rises not therefrom to be flowed by first throttle mechanism 13
Go out, because corresponding connection is blocked by check-valves 60.Other details related to this are illustrated with reference to figure 2.
The second valve seat is arranged in the third housing parts 25 for being firmly screwed into second shell part 24（In Fig. 3
71）, the second operating room 22 is connect by second valve seat with the second control room 12.The second valve body 70 is arranged for the second valve seat, it
Details with reference to figure 3 be described in detail.The second valve seat can with No leakage be closed with the second valve body 70.
One precontrol valve 80 of this peripheral hardware, releases in the second operating room 22 and the second control room in which can get around the second valve seat
Connection between 12.Precontrol valve 80 includes the 4th valve body 81 that form is needle, and the 4th valve body is the component part of centre valve.The
Four valve bodies 81 couple with the movement of magnetic armature 84 ground, and it is close that magnetic armature is accommodated in fluid in a manner of it can be moved along the direction of motion 15
In the pole pipe 87 that feud is closed.Pole pipe 87 is made of the material of magnetizable, such as steel as possible.Only in flowing interruptive area 88, pole
87 ability of pipe by cannot magnetized material, such as copper constitute.Alternately, it can also be provided with compared to residue in stream interruptive area 88
The much smaller wall thickness of pole pipe magnetizable material.The length and arrangement of stream interruptive area 88 are selected in this way so that rank
Iron is cumulative dynamic without offset with the current strength in magnetic coil 85, wherein ideally make every effort in current strength and
A kind of linear association between the movement of magnetic armature 84.Magnetic armature 84 is by the spring 86 through preload along the side of the second valve seat 71
To pressing, thus spring force must be overcome by the magnetic force.
In addition, the second blind bolt 32 is screwed into first shell part 23, the second blind bolt is equally deemed to be shell
20 component part.Second blind bolt 32 seals the first operating room 21.Third housing parts 25 are firmly connect with pole pipe 87,
Especially twist-on.Pole pipe 87 is firmly connect with second shell 24 again, especially twist-on, wherein third housing parts 25, pole pipe
87 and magnetic coil 85 form an individual structural unit, which also referred to as screws in valve.
Fig. 2 shows the details for the view that Fig. 1 is pressed in the region of check-valves 60.First valve body 40 is over the whole length
All run through by a longitudinal drilling 45, longitudinal drilling has multiple steps.In fig. 2 on that side on the right, longitudinal drilling 45
By third blind bolt（65 in Fig. 1）It is sealed shut.Longitudinal drilling 45 includes third valve seat 63, and cylindrical surface and circular conical surface exist
Intersection in third valve seat.Third valve body 61 is accommodated in a manner of it can be moved about the direction of motion 15 in the first valve body 40.The
Three valve bodies 61 are configured for the component part of the check-valves 60 of centre valve.It has the third sealing surface 64 of cone, third
It is sticked on third valve seat 63 along the line of a circular ring shape in sealing surface position shown in.It is sealed in third valve body 61 and third
Close it is pre- between bolt 65 be tightly packed into a spring 66, especially helical spring, thus third valve body 61 is pressed towards third valve seat
63.Corresponding cavity is connect by cross drilling 62 with first throttle mechanism 13, thus passes through second from first throttle mechanism 13
Check-valves 60 is pressed into closed position by the pressure that radial bore 47 acts on.From the first operating room（21 in Fig. 1）It is applied to
Pressure on third valve body 61 lifts third valve body from third valve seat 63, thus check-valves 60 is allowed for from the first operating room
Towards first throttle mechanism 13 and therefore towards the fluid stream of the second control room, but fluid in opposite direction is not allowed
Stream.
Thus it is to be noted that with the mark of reference numeral 67 in the first cylindrical region 41 of the first valve body 40 and shell
The gap between the first cylindrical drilling 29 in body 20, the gap location the second annular groove 27 and the second radial drilling 47 it
Between.Inevitable leakage stream can flow through this gap 67.But this leakage stream is hermetically blocked by check-valves 60, if it
It is orientated from the second operating room towards the first operating room.Conversely, leakage stream in opposite direction is not sealed then, wherein it one
As will not interfere because one much greater fluid stream flows to the second work parallel through the first valve seat 43 from the first operating room
Make room.
Multiple the first drillings 46 radially extended, 46a are set on the left side in Fig. 2 of the first valve body 40, wherein one
A little drilling 46a have the diameter than 46 biggers of remaining drilling.In the position shown in, all first drilling 46,46a all by
Shell 20 covers.When the first valve body 40 moves from the first valve seat 43, the first drilling 46,46a enter the area at control edge 34
In domain, wherein the rough major part of their cross section is all free.It can be adjusted by the first drilling 46 of arrangement, 46a,
How free cross section on the first valve seat 43 changes with the motion path of the first valve body 40.About this preferred pursuit
One non-directional fisrt feature line.In order to reach the second operating room 22 from the first operating room 21, pressure fluid must flow before this
It crosses the first radial drilling 46,46a and then passes through the first valve seat 43.To this, there are a kind of series windings.
Fig. 3 shows the details of the view by Fig. 1 in the region of the second valve body 70.Second valve body 70 has third cylinder
The region 74 of shape, it is with the region of this third cylinder along moving in a matched drilling of third housing parts 25
Direction 15 is guided by interactive movement formula.In the region 74 of third cylinder, the second valve body 70 is equipped with multiple circular ditches 76,
These ditches prevent the second valve body 70 to be adhere strongly to based on adhesion strength on third housing parts 25.4th cylindrical area
Domain 75 sticks in third housing parts 25 a matched drilling, which terminates on a control edge 77.
Multiple accurate control gap 78 are equipped in 4th cylindrical region 75, they jointly control the side that edge 77 limits baffle respectively
The free cross section on boundary, these baffles changes with the movement of the second valve body.Baffle above-mentioned and the second valve seat 71 are contacted,
The third and fourth cylindrical region 74,75 that their secondary sealing area 72 attached is disposed on the second valve body 70 it
Between.Secondary sealing area 72 is configured to cone, wherein prolongs along a circular ring shape in 71 position shown in of the second valve seat
The line stretched contacts this secondary sealing area.In addition it is to be noted that cross drilling 33 in third housing parts 25, it is established
It has risen in the first annular groove（26 in Fig. 1）And the second connection between valve seat 71.It is associated with the 4th cylinder in the second valve body
Region 75 front on be applied to pressure in the second operating room 22, thus this pressure can be by the second valve body 70 from second
Valve seat 71 lifts.
In the 4th valve seat 82 that is internally provided with of the second valve body 70, the 4th valve seat is very thin by one in the second valve body 70
Drilling is formed.In the position shown in, the 4th sealing surface 83 of the 4th valve body 81 sticks on the 4th valve seat 82.4th valve seat 82
It is the component part of already mentioned precontrol valve 80 with the 4th valve body 81.4th valve body 81 is configured to the type of needle, also
It is to say, it has the shape of the cylinder of elongation, wherein the 4th sealing surface is configured to the form of the circular cone gradually to come to a point.Also want
The cross drilling 73 being pointed out that in the second valve body 70, it is established by cross drilling 33 in the second control room 12 and
Connection between four valve seats 82.
It is also noted that precontrol valve 80 is for the reason of save structure space and it is individually mounted the second valve body 70
It is internal.It can equally well be arranged on another position in shell 20.Only importantly, precontrol valve 80 can be put down
The connection that row is established or is enclosed between the second control room 12 and the second operating room 22 in 71 ground of the second valve seat.
Fig. 4 shows the office of the valve module 10b of second of form of implementation by the present invention in the region of the first valve seat 43
Portion's sectional view.Second form of implementation is all consistent with by the first form of implementation of Fig. 1 to 3 other than difference described below, thus
Related to thisly referring also to embodiment above.Corresponding part is marked with identical reference numeral in Fig. 4.
Fig. 4 shows the first valve body 40 in one location, in this position, 44 quilt of primary sealing area of the first valve body
It is lifted from the first valve seat 43.
The radial drilling of substitution first（In Fig. 2 46,46a）, it is adjacent in the first valve body with primary sealing area 44
One region 50 being convexly curved is set on 40 front 49.Free cross section in the region of the first valve seat 43 passes through
Spacing between control edge 34 and the region 50 being convexly curved determines.This spacing is preferably pressed fisrt feature line and is changed,
The fisrt feature line is not linearly and such as parabola shapedly to extend.
Fig. 5 shows the valve module of the third form of implementation by the present invention in the region of first throttle mechanism 13
The partial sectional view of 10c.The third form of implementation other than difference described below with by Fig. 1 to 3 the first form of implementation
Unanimously, thus related to thisly with reference to embodiment above.Corresponding part is marked with identical reference numeral in Figure 5.
First throttle mechanism 13 is implemented to the form of the gap in the first valve body 40 as in fig. 2.But its depth
Degree no longer linearly changes, but are nonlinearly changes in the length of the first valve body 40.Regulation first throttle mechanism 13 herein
A kind of incremental variation of the free cross section on the mobile route of the first valve body 40.
Fig. 5 shows the first valve body 40 in the position that first valve seat is closed.It can be seen that first throttle machine
Structure 13 has had free cross section in this position.This point is equally this in by the first of Fig. 2 form of implementation
Kind situation.
Reference numerals list
10 valve modules（The first form of implementation）
10a valve modules（Second of form of implementation）
10b valve modules（The third form of implementation）
11 first control rooms
12 second control rooms
13 first throttle mechanisms
14 second throttle body
15 directions of motion
20 shells
21 first operating rooms
22 second operating rooms
23 first shell parts
24 second shell parts
25 third housing parts
26 first annular grooves
27 second annular grooves
28 third annular grooves
29 first cylindrical drillings
30 second cylindrical drillings
31 first blind bolts
32 second blind bolts
33 cross drillings
34 control edges
40 first valve bodies
41 first cylindrical regions
42 second cylindrical regions
43 first valve seats
44 primary sealing areas
45 longitudinal drillings
46, drilling radial 46a first
47 second radial drillings
48 springs
49 fronts
50 regions being convexly curved
60 check-valves
61 third valve bodies
62 cross drilling in valve body
63 third valve seats
64 third sealing surfaces
65 third blind bolts
66 springs
67 have the gap of leakage
70 second valve bodies
71 second valve seats
72 secondary sealing areas
73 cross drillings
The region of 74 thirds cylinder
75 the 4th cylindrical regions
76 circular grooves
77 control edges
78 accurate control gap
80 precontrol valves
81 the 4th valve bodies
82 the 4th valve seats
83 the 4th sealing surfaces
84 magnetic armatures
85 magnetic coils
86 springs
87 pole pipes
88 stream interruptive areas
Claims (13)
1. valve module（10）, there is shell（20）, the first valve body is displaceably accommodated in the housing（40）, thus
Shell（20）On the first valve seat（43）The first valve body can be used in（40）On primary sealing area（44）Closing, middle casing（20）
With the first and second operating rooms（21；22）, these operating rooms pass through the first valve seat（43）It is connected with each other, wherein the first valve body
（40）Joint shell（20）Define the first control room（11）Boundary, the volume of the first control room is in the first valve body（40）From
One valve seat（43）Constantly become smaller when leaving mobile, middle casing（20）With the first valve body（40）It is common to limit first throttle mechanism
（13）Boundary, the free cross section of first throttle mechanism is in the first valve body from the first valve seat（43）Persistently become when leaving mobile
Greatly, wherein the first operating room（21）Pass through first throttle mechanism（13）With the second control room（12）Connection, wherein the second control room
（12）With the first control room（11）Connection is overlapped with it,
It is characterized in that, in shell（20）In displaceably accommodate different from the first valve body（40）The second valve body
（70）, thus in shell（20）On the second valve seat（71）The second valve body can be used in（70）On secondary sealing area（72）Closing,
Wherein the second operating room（22）Pass through the second valve seat（71）With the second control room（12）It connects in this way so that from the second operating room
（22）The pressure of effect is by the second valve body（70）It presses from the second valve seat（71）, wherein from the second control room（12）The pressure of effect will
Second valve body（70）Press to the second valve seat（71）, wherein the second operating room（12）Pass through precontrol valve（80）And around the second valve
Seat（71）In the case of with the second control room（12）Connection.
2. valve module as described in claim 1, which is characterized in that precontrol valve（80）It is configured to centre valve.
3. valve module as described in claim 1 or 2, which is characterized in that the first operating room（21）Via check-valves（60）With
One throttle mechanism（13）Connection, check-valves have only been allowed from the first operating room（21）To first throttle mechanism（13）Fluid stream,
Wherein check-valves（60）It is configured to the form of centre valve.
4. valve module as described in claim 1 or 2, which is characterized in that precontrol valve（80）Including magnetic coil（85）And magnetic armature
（84）, wherein precontrol valve（80）Magnetic armature can be passed through（84）It is manipulated, wherein magnetic coil（85）And magnetic armature（84）Such phase
It is mutually harmonious so that magnetic armature（84）Position in magnetic coil（85）Interior electric current constantly changes when changing.
5. valve module as described in claim 4, which is characterized in that magnetic armature（84）Utilize spring（86）It is tightened to precontrol valve in advance
（80）Block position in.
6. valve module as described in claim 1, which is characterized in that the first control room（11）With the second control room（12）Separate structure
It makes, wherein the second control room（12）It is included in shell（20）In the first annular groove（26）, the first annular groove the first valve body of encirclement（40）.
7. valve module as described in claim 6, which is characterized in that the first valve body（40）In the first annular groove（26）With the first control
Room（11）Between stick on shell（20）On.
8. by the valve module described in claim 6 or 7, which is characterized in that the first and second control rooms（11；12）Only pass through second
Throttle mechanism（14）It is connected with each other.
9. valve module as described in claim 1 or 2, which is characterized in that in the first valve seat（43）On free cross section press
Non-directional fisrt feature line is with the first valve body（40）Movement and lasting variation.
10. valve module as described in claim 9, which is characterized in that the first valve body（40）And primary sealing area（44）It is adjacent
Front at least adjacent to primary sealing area（44）Ground is configured to be convexly curved（50）.
11. valve module as described in claim 9, which is characterized in that the first valve body（40）With multiple about its direction of motion
The first drilling radially extended（46；46a）, these first drillings are according to the first valve body（40）Position by shell（20）Cover or
It is not covered by shell, wherein the first drilling（46）With the first valve seat（43）Series winding.
12. valve module as described in claim 1 or 2, which is characterized in that when the first valve seat（43）By the first valve body（40）Closing
When, first throttle mechanism（13）With the free cross section not equal to zero.
13. valve module as described in claim 1 or 2, which is characterized in that first throttle mechanism（13）Free cross section press
Non-directional second feature line is with the first valve body（40）Movement and lasting variation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014204070.1A DE102014204070A1 (en) | 2014-03-06 | 2014-03-06 | Valve assembly with load holding function |
| DE102014204070.1 | 2014-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104895859A CN104895859A (en) | 2015-09-09 |
| CN104895859B true CN104895859B (en) | 2018-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510097531.1A Active CN104895859B (en) | 2014-03-06 | 2015-03-05 | The valve module of function is kept with load |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104895859B (en) |
| DE (1) | DE102014204070A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015211704A1 (en) | 2015-06-24 | 2016-12-29 | Robert Bosch Gmbh | Valve assembly with at least two pump lines for one pump |
| CN105587701A (en) * | 2015-10-23 | 2016-05-18 | 上海立新液压有限公司 | Load maintaining valve |
| DE102017210823A1 (en) | 2017-06-27 | 2018-12-27 | Robert Bosch Gmbh | Valve block assembly and method for a valve block assembly |
| DE102017212450A1 (en) | 2017-07-20 | 2019-01-24 | Robert Bosch Gmbh | Proportional pressure reducing valve with seat valve |
| IT201700096057A1 (en) * | 2017-08-25 | 2019-02-25 | Bosch Gmbh Robert | CHECK VALVE UNIT ELECTRICALLY CONTROLLED |
| DE102018204854A1 (en) | 2018-03-29 | 2019-10-02 | Robert Bosch Gmbh | Valve assembly with a main spool and two spools |
| IT201900002599A1 (en) | 2019-02-22 | 2020-08-22 | Bosch Gmbh Robert | Electronically controlled check valve system |
| DE102022203154A1 (en) | 2022-03-31 | 2023-10-05 | Continental Automotive Technologies GmbH | Valve arrangement for a gas generator and impact protection system |
| CN114658900B (en) * | 2022-04-18 | 2024-05-28 | 北京星际荣耀空间科技股份有限公司 | Vibration-proof check valve |
| WO2024086379A1 (en) * | 2022-10-21 | 2024-04-25 | Husco International, Inc. | Valve system for a hydraulic machine |
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| DE4244292A1 (en) * | 1992-12-28 | 1994-06-30 | Aeg Sensorsysteme Gmbh | Three- or two-way valve for gas flow |
| DE19947900A1 (en) * | 1999-05-11 | 2000-11-16 | Continental Teves Ag & Co Ohg | Valve assembly, especially for hydraulic braking system with wheel slip regulation, has flow cross-section between valve pin piston that is closed by electrical actuation of valve pin |
| CN1350125A (en) * | 2001-12-07 | 2002-05-22 | 卢永松 | Hydraulic balancing valve |
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| SE459270B (en) | 1985-02-26 | 1989-06-19 | Bahco Hydrauto Ab | VALVE ARRANGEMENTS FOR CONTROL OF PRESSURE FLUID THROUGH A PRESSURE CIRCUIT |
| DE19715020A1 (en) * | 1997-04-11 | 1998-10-15 | Rexroth Mannesmann Gmbh | Hydraulic control system for transporting vehicle, especially sedimentation vessels |
| DE10224740B4 (en) * | 2002-06-04 | 2014-09-04 | Linde Material Handling Gmbh | Hydraulic control valve device with a flow control device |
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2014
- 2014-03-06 DE DE102014204070.1A patent/DE102014204070A1/en active Pending
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| DE4244292A1 (en) * | 1992-12-28 | 1994-06-30 | Aeg Sensorsysteme Gmbh | Three- or two-way valve for gas flow |
| DE19947900A1 (en) * | 1999-05-11 | 2000-11-16 | Continental Teves Ag & Co Ohg | Valve assembly, especially for hydraulic braking system with wheel slip regulation, has flow cross-section between valve pin piston that is closed by electrical actuation of valve pin |
| CN1350125A (en) * | 2001-12-07 | 2002-05-22 | 卢永松 | Hydraulic balancing valve |
| CN1916462A (en) * | 2005-08-19 | 2007-02-21 | 伊顿公司 | Relief valve |
| CN101573527A (en) * | 2006-12-28 | 2009-11-04 | 株式会社小松制作所 | Egr valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014204070A1 (en) | 2015-09-10 |
| CN104895859A (en) | 2015-09-09 |
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