DEVICE WITH A COMPONENT AND A VALVE HOUSING

Abstract

A device includes a component and a valve housing The valve housing is arranged in a hole in the component and is at least partially enclosed by the wall of the component The component includes a first channel having a channel port extending into the hole. The valve housing includes two first ports arranged adjacent to each other about a center axis of the valve housing and opened radially, in the direction of the center axis, into an interior of the valve housing. The valve housing included a bridge arranged circumferentially between the two first ports. The two first ports are partially defined by the bridge. At least one section of at least one first port is arranged radially opposite the channel port such that a radially first passage through which flow medium can pass is formed between the first channel and the interior of the housing. An outer width of the bridge determined at an outer lateral surface of the valve housing is less than an inner width of the channel port determined at the hole.

Claims

1. A device, comprising: a component including a wall defining a hole, the component including a first channel having a channel port extending throughout the wall into the hole; a valve housing arranged in the hole and at least partially enclosed by the wall, the valve housing including two first ports arranged adjacent to one another about a center axis of the valve housing radially and opened, radially relative to the center axis, into an interior of the valve housing, the valve housing including a bridge arranged circumferentially between the two first ports, the two first ports each being partially defined by the bridge, and at least one section of at least one of the first ports being arranged radially opposite the channel port such that a radially first passage through which flow medium can pass is formed between the first channel and the interior of the valve housing via the channel opening and the at least one first, wherein an outer width, determined at a joint between the valve housing and the hole, of the bridge is less than an inner width, determined at the joint, of the channel port.

2. The device according to claim 1, wherein the component includes a second channel arranged transverse to the first channel, and the valve housing includes at least one second port axially facing the second channel and opened, axially relative to the center axis, into the interior of the valve housing, wherein an axial second passage through which flow medium can pass is formed between the second channel and the interior of the valve housing via the at least one second port.

3. The device according to claim 1, wherein the valve housing abuts the hole circumferentially about the center axis, wherein at least one of the first ports is partially or completely closed by the component.

4. The device according to claim 1, wherein the outer width of the bridge is less than or equal to one third of the inner width of the channel port.

5. The device according to claim 1, wherein the valve housing includes at least three circumferentially arranged first ports.

6. The device according to claim 1, wherein the first ports are arranged circumferentially and axially offset from one another.

7. The device according to claim 1, wherein the valve housing includes at least three of the first ports uniformly distributed relative to each other circumferentially about the center axis and at least three bridges uniformly distributed relative to each other circumferentially about the center axis, wherein each of the first ports has a same inner width determined at an inner lateral surface of the valve housing, and each of the bridges has a same inner width determined at the inner lateral surface of the valve housing, and wherein a sum of the inner widths of the first ports and the inner widths of the bridges equals a circumference of the inner lateral surface.

8. The device according to claim 1, wherein the bridge partially covers the channel port.

9. The device according to claim 1, wherein at least one section of each of the two first ports are arranged radially opposite the channel port such that the radially first passage through which flow medium can pass is formed between the channel and the interior of the valve housing via the channel port and the two first ports.

10. The device according to claim 2, further comprising a piston axially moveable in the valve housing to an open position, in the open position, a passage through which flow medium can pass is formed between the second channel and the interior of the valve housing via the second port.

11. A device, comprising: a component including a wall defining a hole extending circumferentially about an axis, the component including a first channel having a channel port extending radially relative to the axis through the wall into the hole; a valve housing being disposed in the hole and defining an interior extending circumferentially about the axis; the valve housing including two first ports spaced from each other circumferentially about the axis and extending radially relative to the axis into the interior, the first ports being axially aligned with each other relative to the axis; and the valve housing including a bridge disposed circumferentially between two first ports, the bridge extending circumferentially about the axis to each first port; wherein the first channel is in fluid communication with the interior of the valve housing via the channel port and at least one of the first ports; wherein an outer width, determined at a joint between the valve housing and the hole, of the bridge is less than an inner width, determined at the joint, of the channel port determined.

12. The valve of claim 11, wherein the component includes a second channel arranged transverse to the first channel, and the valve housing includes at least one second port axially facing the second channel and opened axially relative to the axis into the interior of the valve housing.

13. The valve of claim 12, further comprising a piston housed in the valve housing, the piston being axially moveable in the valve housing to an open position spaced from the at least one second port, wherein, in the open position, the second channel is in fluid communication with the interior of the valve housing via the at least one second port.

14. The valve of claim 13, wherein the piston is axially moveable in the housing to a closed position abutting the at least one second port, wherein, in the closed position, the piston prevents fluid communication between the interior of the valve housing and the second channel via the at least one second port.

15. The valve of claim 11, wherein the bridge partially covers the channel port.

16. The valve of claim 11, wherein the component includes a further first channel having a further channel port, and the valve housing includes a further first port, the further first channel being in fluid communication with the interior of the valve housing via the further channel port and the further first port, and wherein the further first port is axially and circumferentially offset from to the two first ports relative to the axis.

17. The valve of claim 16, wherein the valve housing includes a further bridge disposed axially between the further first port and the two first ports, the further bridge extending from the further first port to the two first ports.

18. A valve, comprising: a valve housing configured to be received in a hole of a component and defining an interior extending circumferentially about an axis; the valve housing including two first ports spaced from each other circumferentially about the axis and extending radially relative to the axis into the interior; and the valve housing including a bridge disposed circumferentially between two first ports, the bridge extending circumferentially about the axis to each first port; wherein an outer width, determined at a joint between the valve housing and the hole, of the bridge is configured to be less than an inner width, determined at the joint, of a channel port for the component.

19. The valve of claim 18, wherein the two first ports are axially aligned with each other relative to the axis.

20. The valve of claim 18, wherein the valve housing includes a further first port and a further bridge, the further first port being axially and circumferentially offset from to the two first ports relative to the axis, and the further bridge extending axially from the further first port to the two first ports.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The disclosure is described below using an exemplary embodiment and further embodiments of the disclosure of a valve. In this case, the valve is designed as a pressure compensation valve and is installed in a device for controlling pressures of a flow medium. In the figures:

[0032] FIG. 1—shows a device 1 in a highly simplified and not to scale sketch, which is shown in cross-section to a center axis 2 of an otherwise not further shown valve, extending perpendicularly into the image in this representation;

[0033] FIG. 2—shows the device 1 in a longitudinal section along the center axis 2 and the line II-II according to FIG. 1 for controlling pressures of a flow medium in a vehicle transmission with a valve 3 installed therein;

[0034] FIG. 3—shows the valve 3 inserted into the device 1 as an individual part in an overall view;

[0035] FIG. 4—shows a schematic representation of a valve housing 6 of the valve 3 shown in FIG. 3, showing the hole pattern and distribution of ports 7 and 25 on the valve housing 6;

[0036] FIG. 5—shows a schematic representation of another valve housing 33 as an alternative to the valve housing 6 shown in FIG. 4;

[0037] FIG. 6—shows a section of the device 1 with a partially cut component 4 and with a view through a channel port 5 of a transverse channel 19 formed in the component 4 to the valve housing 6;

[0038] FIG. 7—shows a section of the device 1 with the partially cut component 4 and with a view through the channel port 5 of the transverse channel 19 formed in the component 4 to the valve housing 6 in an installation position changed from that shown in FIG. 6;

[0039] FIG. 8—shows a section of the device 1 with the partially cut component 4 and with a view through the channel port 5 of the transverse channel 19 formed in the component 4 to the valve housing 6 in an installation position changed from that shown in FIG. 6;

[0040] FIG. 9—shows a section of a further exemplary embodiment of a device according to the disclosure with the partially cut component 4 and with a view through the channel port 5 of the transverse channel 19 formed in the component 4 to a valve housing 33.

DETAILED DESCRIPTION

[0041] FIG. 1—A component 4 of A device 1 is provided with a channel port 5 (see FIG. 2). FIG. 1 shows a valve housing 6 in a sectional view through a bridge area 12. The valve housing 6 sits in a bore 11 of the component 4. A joint 14 defined by a press fit, alternatively a transition fit or a clearance fit, is formed between an outer lateral surface 10 of the valve housing 6 and an inner lateral surface of the bore 11 of the component 4. The valve housing 6 is provided with N=6 circumferentially distributed first ports 7 and N=6 circumferentially distributed bridges 8. A full circle 9 extending in the bridge area 12 to any axial height around a center axis 2 lies at the same time on a cylindrical inner lateral surface 18 of the valve housing 6. Accordingly, a full circle circumference AU of the full circle 9 in the nominal dimension corresponds to the inner circumference of the valve housing 6 in the bridge area 12. The first ports 7 have a same circumferential pitches UT between them, and the bridges 8 each have a same circumferential pitch ST between them.

[0042] The circumferential pitch UT is a radian measure, i.e., the length of a pitch circle lying on the full circle 9 with the full circle circumference AU. In the image, the respective pitch circle UT extends between limiting edges 15 and 16 of the first ports 7, which are at the same time limiting edges 15 and 16, respectively, of the respective bridge 8 and which each extend on the full circle 9 on the inner lateral surface 18 of the valve housing 6, as viewed in a counterclockwise direction. In this regard, it is not excluded that these limiting edges 15 and 16 are also provided with a chamfer. The limiting edges 15 and 16 define the respective first port 7 at the narrowest point in the circumferential direction, which in this case is at the height of the inner lateral surface 18.

[0043] The numerical value 0 is equal to a difference resulting from the circumference AU of the full circle 9 and a sum of ((N×UT)+(N×ST). This sum corresponds to the circumference AU of the full circle 9 of the valve housing 6, which runs along the first ports 7 where they have their narrowest point in the circumferential direction. N is the number of first ports 7 in the valve housing 6 and also the number of defining bridges 8. ST describes a width of the respective bridge 8 in radian measure between the limiting edges 15 and 16 as viewed in a clockwise direction, which is measured on the circumference AU.

[0044] FIG. 2—The device 1 consists of the component 4, a valve 3, a first channel 19, a second channel 20 and a third channel 21. The valve 3 comprises the valve housing 6, a piston 22, a spring 23 and a support element 24. The spring 23 is axially clamped between the piston 22 and the support element 24. The support element 24 is supported or retained on the valve housing 6. The piston 22 is guided axially in a displaceable manner along a valve axis on the inner lateral surface 18 of the valve housing 6. The valve axis 7 corresponds to the center axis 2. The valve housing 6 is provided with several first ports 7 separated from one another on a circumferential side by bridges 8 not visible in this illustration (see bridges 8 in FIG. 1), of which, however, only one first port 7 is visible in the illustration due to the longitudinal section. The first ports 7 are aligned transversely to the center axis 2. In addition, the valve housing 6 has a second port 25 which is penetrated axially by the center axis 2. The valve housing 6 can be divided into an upper portion 26, the bridge area 12 (see sectional drawing of FIG. 1) and a lower portion 27. The upper portion 26 is provided with the second port 25 and has a valve seat 28 against which the piston 22 abuts in a sealing manner in its closed position. However, the piston 22 is shown in an open position in FIG. 2. The bridge area 12 comprises the first ports 7 and the bridges 8. The lower portion 27 of the valve housing 6 is used to guide the piston 22 and is used as an anchorage for the support element 24. In addition, the valve 3 has through-openings 29 in the support element 24 at the rear there.

[0045] The channel port 5 of the first channel 19 is radially opposite one or two of the first ports 7. The second channel 20 opens into the second port 25 and continues axially in the bore 11. The valve housing 6 is pressed into the bore 11 via the outer lateral surface 10. The rear of the valve 3 is open at the through-openings 29 into the third channel 21. In the open position of the piston 22 shown in FIG. 2, the flow medium 30 symbolized by an arrow can flow from the second channel 20 through the second port 25, through the valve 3 and from the first ports 7 into the first channel 19.

[0046] FIGS. 3 and 4—In the bridge area 12, the valve housing 6 of the valve 3 has several first ports 7 adjacent to one another on the circumferential side, each of which is defined on the circumferential side by a bridge 8. A part of the piston 22 is visible through the respective ports 7. Also, the second port 25 is visible at the beginning of the upper portion 26 of the valve housing 6.

[0047] FIG. 5-FIG. 5 shows an alternative valve housing 33 with multiple first ports 7 adjacent to one another on the circumferential side in an upper row 34 and separated from one another by bridges 8, and with a lower row 35 of further first ports 7 axially offset therefrom, which are formed together in the bridge area 12. The first ports 7 of the lower row 35 are separated from one another on the circumferential side by bridges 8 and from the first ports 7 of the upper row 34 by further bridges 36.

[0048] FIG. 6—This figure represents a view through the first channel port 5 surrounded by the first component 4 to an opening cross-section 31 of a first port 7 of the valve housing 6 as well as to a further opening cross-section 32 of a further first port 7. The valve housing 6 is rotated about its own axis relative to the channel port 5 in such a manner that a bridge 8 extending between these two first ports 7 covers part of the opening cross-section of the channel port 5 in the axial direction and circumferential direction. The largest bridge width S oriented on the circumferential side of the bridge 8 between the two first ports 7 is smaller than the largest channel port width W of the channel port 5 measured on the circumferential side in the same circumferential direction (see FIG. 1). Flow medium can therefore flow into the first channel 19 through the opening cross-sections 31 and 32. The rest of the respective port 7 is covered by the component 4.

[0049] FIG. 7—Compared to the arrangement shown in FIG. 6, the valve 3 is rotated around its own axis in such a manner that the opening cross-section of one of the first ports 7 lies completely opposite the channel port 5 and the channel port 5 is covered by a bridge 8 on the left and right sides respectively.

[0050] FIG. 8—The valve housing 6 is rotated about its own axis relative to the channel port 5 in such a manner that the opening cross-section of a first port 7 lies opposite the channel port 5 in a completely free manner and only a gap 37 remains as a free flow cross-section from a further first port 7. A bridge 8 covers part of the channel port 5.

[0051] FIG. 9—Several of the first ports 7 of the valve housing 33 shown in FIG. 5 lie opposite to the channel port 5 in a permeable manner, and several of the bridges 8 and 36 cover portions of the flow cross-section of the channel port 5.

LIST OF REFERENCE SYMBOLS

[0052] 1 Device [0053] 2 Center axis [0054] 3 Valve [0055] 4 Component [0056] 5 Channel port [0057] 6 Valve housing [0058] 7 First port [0059] 8 Bridge [0060] 9 Full circle [0061] 10 Outer lateral surface [0062] 11 Bore [0063] 12 Bridge area [0064] 13 Limiting edge of the channel port [0065] 14 Joint [0066] 15 Limiting edge of the first port or bridge [0067] 16 Limiting edge of the first port or bridge [0068] 17 Limiting edge of the channel port [0069] 18 Inner lateral surface [0070] 19 First channel [0071] 20 Second channel [0072] 21 Third channel [0073] 22 Piston [0074] 23 Spring [0075] 24 Support element [0076] 25 Second port [0077] 26 Upper portion [0078] 27 Lower portion [0079] 28 Valve seat [0080] 29 Through-openings [0081] 30 Flow medium [0082] 31 Opening cross-section [0083] 32 Opening cross-section [0084] 33 Valve housing [0085] 34 Upper row of first ports [0086] 35 Lower row of first ports [0087] 36 Bridge [0088] 37 Gap