WO2018061892A1

WO2018061892A1 - Valve device

Info

Publication number: WO2018061892A1
Application number: PCT/JP2017/033801
Authority: WO
Inventors: 佐藤　真吾
Original assignee: 株式会社デンソー
Priority date: 2016-09-27
Filing date: 2017-09-20
Publication date: 2018-04-05
Also published as: CN116181472A; CN112664679A; CN112664679B

Abstract

A valve device (1, 2, 3) is provided with: a valve housing (10, 15, 16, 17, 18) having an internal space (100) and a plurality of housing-side openings (101, 1601, 1701, 1801) through which the internal space and the exterior communicate; a valve member (20, 70) rotatably accommodated inside the valve housing, the valve member having a plurality of valve-member-side openings (230, 222, 232, 233, 720, 721, 722, 723) capable of communicating with the plurality of housing-side openings, and a communication channel through which the plurality of valve-member-side openings communicate; a restricting part (19, 394, 494) capable of restricting the rotation of the valve member; a contact part (24, 34, 44, 54, 64) provided in a space (200, 210) in the valve member, the contact part being capable of coming into contact with the restricting part; and a shaft (25) that rotatably supports the valve member.

Description

Valve device

Cross-reference of related applications

This application is based on patent application No. 2016-187965 filed on September 27, 2016 and patent application No. 2017-166230 filed on August 30, 2017, the contents of which are described herein. Is used.

This disclosure relates to a valve device.

2. Description of the Related Art Conventionally, a valve member having two or more openings and a communication passage that communicates the two or more openings, and two that can rotatably accommodate the valve member and communicate with two or more openings of the valve member 2. Description of the Related Art A valve device that includes a valve housing having the above-described communication holes and can control the flow of fluid in accordance with the rotation angle of a valve member with respect to the valve housing is known. For example, in Patent Document 1, a bottomed cylindrical valve housing having a plurality of housing side openings on the outer side in the radial direction when viewed from one end along the rotational axis and the rotational axis, and a bottomed cylindrical shape are formed. A valve device including a valve member that is rotatably accommodated in a valve housing and has a valve member side opening that can communicate with the housing side opening on a radially outer wall is described.

Japanese Patent Laying-Open No. 2015-59615

In the valve device described in Patent Document 1, the valve member has an abutting portion that can abut against a regulating portion provided in the valve housing. When the contact portion and the restricting portion contact, the rotation of the valve member is restricted. However, in the valve device described in Patent Document 1, the contact portion is formed so as to protrude from the valve member in a direction along the rotation axis of the valve member, so that the physique in the axial direction of the valve device increases.

This indication is made in view of the above-mentioned point, and the object is to provide a valve device which can make a rotation angle of a valve member in a desired angle range, reducing a physique. .

The present disclosure is a valve device, which includes a valve housing, a valve member, a restricting portion, an abutting portion, and a shaft.
The valve housing has an internal space and a plurality of housing-side openings that communicate the internal space with the outside.
The valve member is rotatably accommodated in the valve housing, and has a plurality of valve member side openings that can communicate with the plurality of housing side openings, and a communication passage that communicates the plurality of valve member side openings.
The restricting portion can restrict the rotation of the valve member.
The contact portion is provided in a space of the valve member and can contact the restriction portion.
The shaft rotatably supports the valve member.

In the valve device of the present disclosure, the contact portion that can contact the restriction portion that can restrict the rotation of the valve member is provided in a space of the valve member. Thereby, since a contact part does not protrude from a valve member, the physique of a valve member can be made small compared with the case where a contact part is provided so that it may protrude from a valve member. Therefore, the rotation angle of the valve member can be within a desired angle range while reducing the physique.

The above and other objects, features, and advantages of the present disclosure will become more apparent from the following detailed technique with reference to the accompanying drawings. The drawing
FIG. 1 is a sectional view of a valve device according to a first embodiment, 2 is a cross-sectional view taken along line II-II in FIG. FIG. 3 is a schematic diagram of a cooling system to which the valve device according to the first embodiment is applied, FIG. 4 is a schematic diagram of a bearing provided in the valve device according to the first embodiment. FIG. 5 is a sectional view of the valve device according to the first embodiment in an exploded state, FIG. 6 is a partial cross-sectional view of the valve device according to the first embodiment, FIG. 7 is a schematic diagram showing the meshing state of the motor gear, the first intermediate gear, the second intermediate gear, and the valve gear of the valve device according to the first embodiment, FIG. 8 is a view taken along arrow VIII in FIG. FIG. 9 is a perspective view of a valve member provided in the valve device according to the first embodiment, FIG. 10 is a perspective view of a valve member included in the valve device according to the first embodiment. FIG. 11 is a cross-sectional view of a valve member provided in the valve device according to the first embodiment, 12 is a view taken in the direction of arrow XII in FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. FIG. 14 is a perspective view of a valve housing provided in the valve device according to the first embodiment; 15 is a cross-sectional view taken along line XV-XV in FIG. FIG. 16 is a perspective view of the valve device according to the second embodiment, FIG. 17 is a partially enlarged view of the valve device according to the second embodiment, FIG. 18 is a partial cross-sectional view of the valve device according to the second embodiment, FIG. 19 is a partial cross-sectional view of the valve device according to the second embodiment, FIG. 20 is a perspective view of the valve device according to the third embodiment, FIG. 21 is a cross-sectional view of the valve device according to the third embodiment, FIG. 22 is a perspective view of a valve member provided in the valve device according to the fourth embodiment; FIG. 23 is a partial cross-sectional view of a valve member provided in the valve device according to the fourth embodiment; FIG. 24 is a perspective view of a valve member provided in the valve device according to the fifth embodiment, FIG. 25 is a top view of a valve member provided in the valve device according to the fifth embodiment, FIG. 26 is a perspective view of a valve member included in the valve device according to the sixth embodiment; FIG. 27 is a partial cross-sectional view of a valve device according to another embodiment, FIG. 28 is a partial sectional view of a valve device according to another embodiment; FIG. 29 is a cross-sectional view of a valve member provided in a valve device according to another embodiment, FIG. 30 is a cross-sectional view of a valve member provided in a valve device according to another embodiment; FIG. 31 is a perspective view of a valve member provided in a valve device according to another embodiment, FIG. 32 is a cross-sectional view of a valve member provided in a valve device according to another embodiment.

Hereinafter, a plurality of embodiments will be described with reference to the drawings. In the plurality of embodiments, substantially the same parts are denoted by the same reference numerals, and description thereof is omitted.

(First embodiment)
The fluid control valve 1 as a “valve device” according to the first embodiment is applied to a cooling system for cooling an engine.
First, the cooling system 4 to which the fluid control valve 1 is applied will be described with reference to FIG. The fluid control valve 1 is provided in a cylinder head 501 included in the engine 5. Cooling water flowing through the cylinder block 502 and the cylinder head 501 of the engine 5 flows into the fluid control valve 1. The cooling water flowing into the fluid control valve 1 is supplied to the radiator 6, the oil cooler 7, and the air conditioner heat exchanger 8. The cooling water supplied to the radiator 6, the oil cooler 7, and the air conditioner heat exchanger 8 is returned to the water pump 9 and pressurized, and then used again for cooling the engine 5.

The fluid control valve 1 includes a first housing 10 as a “valve housing”, a bearing 14, a second housing 15 as a “valve housing”, a radiator pipe 16 as a “valve housing”, and an oil cooler as a “valve housing”. A piping 17, an air conditioning piping 18 as a “valve housing”, a valve member 20, a contact portion 24, a regulating portion 19, and a shaft 25 are provided.

The first housing 10 is a member made of a resin that is formed in a substantially bottomed cylindrical shape. The first housing 10 has a valve member accommodating space 100 as a substantially columnar “housing inner space” capable of accommodating the valve member 20.
The first housing 10 has an insertion hole 101 as “one housing side opening” communicating with the valve member accommodation space 100. The inner diameter of the insertion hole 101 is such that the valve member 20 can be inserted into the valve member accommodating space 100. Further, the insertion hole 101 serves as an inlet when cooling water flows from the engine 5 into the valve member housing space 100. An O-ring 110 that can maintain liquid tightness between the fluid control valve 1 and the cylinder head 501 when the fluid control valve 1 is assembled to the cylinder head 501 is provided at the edge of the first housing 10 that forms the insertion hole 101. A possible groove 102 is formed.

The first housing 10 has three

insertion holes

11, 12, 13 in the radially outward direction of the valve member accommodation space 100.
The insertion hole 11 is formed at a position closest to the housing bottom 104 provided on the opposite side of the three

insertion holes

11, 12, and 13 from the insertion hole 101 of the valve member housing space 100. The radiator hole 16 can be inserted into the insertion hole 11.

The

insertion holes

12 and 13 are formed between the insertion hole 11 and the insertion hole 101. The insertion hole 12 and the insertion hole 13 are provided at a position that forms an angle of about 90 degrees when viewed from the rotation axis RA25 of the shaft 25 (see FIG. 1 and FIG. 2 for comparison). An oil cooler pipe 17 can be inserted into the insertion hole 12. The insertion hole 13 can be inserted with an air conditioning pipe 18.

The housing bottom portion 104 has a through hole 105 at substantially the center. The other end 252 of the shaft 25 is inserted through the through hole 105. A bearing portion 106 is provided on the inner wall of the through hole 105. The bearing portion 106 rotatably supports the other end portion 252 of the shaft 25.
Liquid tightness between the through hole 105 on the side where the bearing portion 106 is provided and the valve member accommodating space 100 can be maintained between the bearing portion 106 and the valve member accommodating space 100 on the inner wall of the through hole 105. A seal member 107 is provided.

The housing bottom 104 has a drainage channel 108 communicating with the through hole 105 between the bearing 106 and the seal member 107 (see FIG. 2). The drainage channel 108 communicates the through hole 105 with the outside of the fluid control valve 1. The drainage channel 108 can discharge the cooling water entering the through hole 105 on the side where the bearing portion 106 is provided through the seal member 107 to the outside.

The bearing 14 is provided in the insertion hole 101. The bearing 14 includes a central portion 141, an annular portion 142, a plurality of connecting portions 143, and a bearing portion 140.

The central portion 141 is located in the radially outward direction of one end portion 251 of the shaft 25. The central portion 141 is a substantially cylindrical portion formed so as to extend along the rotation axis RA25 of the shaft 25. The center portion 141 is provided with a bearing portion 140 that rotatably supports one end portion 251 of the shaft 25 at an end portion that is located on the space 200 side when the bearing 14 is assembled to the first housing 10.

The annular portion 142 is a substantially annular portion provided in the radially outward direction of the central portion 141 and is provided at a portion where the insertion hole 101 of the first housing 10 is formed. In the fluid control valve 1, the annular portion 142 is provided in the radially outward direction at the end of the central portion 141 located on the opposite side of the space 200 when the bearing 14 is assembled to the first housing 10. That is, the annular portion 142 and the bearing portion 140 are offset along the rotation axis RA25 as shown in FIGS.

The plurality of connecting portions 143 are portions that connect the central portion 141 and the annular portion 142. The connecting portion 143 is formed radially outwardly from the central portion 141 toward the annular portion 142. As shown in FIGS. 1, 2, and 5, the connecting portion 143 is formed so that the end portion on the side connected to the central portion 141 has substantially the same length as the central portion 141, and the rotational axis increases as the distance from the rotational axis RA25 increases. The length in the direction along RA25 is shortened. When the bearing 14 is viewed from the direction along the rotation axis RA25 of the shaft 25, the plurality of connecting portions 143 are provided such that the intervals between the adjacent connecting portions 143 are the same angle α as shown in FIG. . A gap through which cooling water can flow is formed between adjacent connecting portions 143.

In the fluid control valve 1, the end portion of the annular portion 142 on the side inserted into the insertion hole 101 has an inclined surface 144 formed to be inclined with respect to the rotation axis RA25 of the shaft 25 as shown in FIG. Have. As shown in FIG. 5, the inclined surface 144 is inclined so as to move away from the rotation axis RA25 as it goes from the space 200 side to the outside in a direction substantially parallel to the rotation axis RA25.
The end portion of the first housing 10 that contacts the inclined surface 144 when the bearing 14 is assembled to the first housing 10 has a contact surface 103. As shown in FIG. 5, the contact surface 103 is formed so as to be separated from the rotation axis RA25 as it goes from the space 200 side to the outside in a direction substantially parallel to the rotation axis RA25.

The second housing 15 is provided on the side opposite to the side where the insertion hole 101 of the first housing 10 is formed. The second housing 15 has a connector 151. Further, the second housing 15 forms a housing chamber 150 that can house the rotation angle sensor 152, the motor gear 153, the first intermediate gear 154, the second intermediate gear 155, the valve gear 156, and the like between the first housing 10 and the second housing 15. FIG. 6 is a cross-sectional view of the vicinity of the storage chamber 150 with the second housing 15 removed.

The rotation angle sensor 152 is provided in the vicinity of the other end 252 of the shaft 25. The rotation angle sensor 152 can output a signal corresponding to the rotation angle of the shaft 25.

The motor gear 153 is provided in the motor 157 included in the fluid control valve 1 (see FIG. 7). The motor gear 153 is rotated by the driving force output from the motor 157.

The first intermediate gear 154 connects the motor gear 153 and the second intermediate gear 155. The first intermediate gear 154 includes a first large gear 1541, a first small gear 1542, and a first gear shaft 1543. First large gear 1541 meshes with motor gear 153. As shown in FIG. 6, the first small gear 1542 is located on the first housing 10 side of the first large gear 1541 and meshes with the second intermediate gear 155. The first gear shaft 1543 connects the first large gear 1541 and the first small gear 1542 so that the first large gear 1541 and the first small gear 1542 can rotate together. As shown in FIG. 6, a plurality of grooves 1544 are formed in a radially outward direction at a portion of the first gear shaft 1543 inserted into the second housing 15.

The second intermediate gear 155 connects the first intermediate gear 154 and the valve gear 156. The second intermediate gear 155 includes a second large gear 1551, a second small gear 1552, and a second gear shaft 1553. The second large gear 1551 meshes with the first small gear 1542. As shown in FIG. 6, the second small gear 1552 is located on the opposite side of the second large gear 1551 from the first housing 10 and meshes with the valve gear 156. The second gear shaft 1553 connects the second large gear 1551 and the second small gear 1552 so that the second large gear 1551 and the second small gear 1552 can rotate together. As shown in FIG. 6, a plurality of grooves 1554 are formed in a radially outward direction at a portion of the second gear shaft 1553 inserted into the second housing 15.

The valve gear 156 connects the second intermediate gear 155 and the shaft 25. Specifically, the valve gear 156 is fixed to the other end 252 of the shaft 25 and can rotate integrally with the shaft 25.
When the motor 157 outputs a driving force, the driving force is transmitted to the shaft 25 via the motor gear 153, the first intermediate gear 154, the second intermediate gear 155, and the valve gear 156. The transmitted driving force rotates the shaft 25 and the valve member 20 that rotates integrally with the shaft 25.

In the fluid control valve 1, as viewed from the first housing 10 side, a position where the first small gear 1542 of the first intermediate gear 154 and the second large gear 1551 of the second intermediate gear 155 are engaged with each other (in a chain line C15 in FIG. 6). The position where the valve gear 156 and the second small gear 1552 of the second intermediate gear 155 mesh with each other (the position indicated by the one-dot chain line B15 in FIG. 6), the motor gear 153 and the first large gear 1541 of the first intermediate gear 154. The motor gear 153, the first intermediate gear 154, the second intermediate gear 155, and the valve gear 156 are arranged so as to be in order of meshing positions (positions indicated by a one-dot chain line A15 in FIG. 6).
As shown in FIG. 7, the first large gear 1541 of the first intermediate gear 154 is formed so as to overlap a part of the second gear shaft 1553 of the second intermediate gear 155. That is, as shown in FIG. 6, when the rotation axis of the second gear shaft 1553 extends in a direction substantially parallel to the rotation axis RA25 of the shaft 25 and from the second large gear 1551 to the second small gear 1552, It overlaps the first large gear 1541.

The driving force output from the motor 157 is transmitted to the shaft 25 via the motor gear 153, the first intermediate gear 154, the second intermediate gear 155, and the valve gear 156.

The connector 151 has a terminal 158 that is electrically connected to the rotation angle sensor 152 and the motor 157. The terminal 158 is electrically connected to a control unit (not shown) via an external connector (not shown). The connector 151 outputs a signal output from the rotation angle sensor 152 to the control unit and can receive power supplied to the motor from the outside.

The shaft 25 is formed from a metal in a substantially rod shape, and has one end 251, the other end 252, and an insert 253.
One end 251 is inserted into the bearing 14 and is rotatably supported by the bearing 140.
The other end 252 is inserted into the housing bottom 104 and is rotatably supported by the bearing 106.
The insert portion 253 is provided between the one end portion 251 and the other end portion 252 and is a portion inserted into the valve member 20 as shown in FIGS. The insert portion 253 is formed such that a cross-sectional shape substantially perpendicular to the rotation axis RA25 is a polygonal shape as shown in FIG. On one end 251 side and the other end 252 side of the insert portion 253, grooves 254 and 255 having outer diameters smaller than the outer diameter of the insert portion 253 are formed.

The radiator pipe 16 includes a radiator pipe 161, a seat 162, a sleeve 163, a packing 164, a spring 165, and a plate 166.
The radiator pipe 161 is formed in a substantially cylindrical shape. The radiator pipe 161 is fixed to the opening 111 of the first housing 10. The radiator pipe 161 forms a radiator passage 160.
The seat 162 is a substantially annular member that is provided separately from the radiator pipe 161, for example, formed of PTFE. The sheet 162 has one opening 1601 as “another housing side opening”. The seat 162 is provided so as to be able to contact the outer wall of the valve member 20.

The sleeve 163 is a substantially cylindrical member provided between the radiator pipe 161 and the seat 162. The end of the sleeve 163 on the side of the radiator pipe 161 is inserted into the radiator passage 160. The end of the sleeve 163 opposite to the side inserted into the radiator passage 160 is formed so as to have a larger inner diameter, and supports the seat 162.
The packing 164 is provided on the radially outer side of the sleeve 163 inserted in the radiator passage 160. The packing 164 maintains liquid tightness between the radiator passage 160 and the insertion hole 11.

The spring 165 is provided between the end surface on the valve member 20 side of the radiator pipe 161 and the end surface on the radiator pipe 161 side of the portion of the sleeve 163 that supports the seat 162. The spring 165 biases the seat 162 in a direction in which the radiator pipe 161 and the seat 162 are separated from each other. Accordingly, the seat 162 is pressed against the outer wall of the valve member 20, and the liquid tightness between the valve member 20 and the sleeve 163 and the insertion hole 11 is maintained.

The plate 166 is provided in the radial inner direction of the spring 165. The plate 166 has an L-shaped cross section and is in contact with both the end surface of the radiator pipe 161 on the valve member 20 side and the outer wall surface on the radially outer side of the sleeve 163.

The oil cooler pipe 17 includes an oil cooler pipe 171, a seat 172, a sleeve 173, a packing 174, a spring 175, and a plate 176.
The oil cooler pipe 171 is formed in a substantially cylindrical shape. The oil cooler pipe 171 is fixed to the opening 121 of the first housing 10. The oil cooler pipe 171 forms an oil cooler passage 170.
The seat 172 is a substantially annular member provided separately from the oil cooler pipe 171, for example, formed of PTFE. The sheet 172 has one opening 1701 as “another housing side opening”. The seat 172 is provided so as to be able to contact the outer wall of the valve member 20.

The sleeve 173 is a substantially cylindrical member provided between the oil cooler pipe 171 and the seat 172. The end of the sleeve 173 on the oil cooler pipe 171 side is inserted into the oil cooler passage 170. The end of the sleeve 173 opposite to the side inserted in the oil cooler passage 170 is formed to have an increased inner diameter, and supports the seat 172.
The packing 174 is provided on the radially outer side of the sleeve 173 inserted in the oil cooler passage 170. The packing 174 maintains liquid tightness between the oil cooler passage 170 and the insertion hole 12.

The spring 175 is provided between the end surface on the valve member 20 side of the oil cooler pipe 171 and the end surface on the oil cooler pipe 171 side of the portion of the sleeve 173 that supports the seat 172. The spring 175 biases the seat 172 in a direction in which the oil cooler pipe 171 and the seat 172 are separated from each other. Accordingly, the seat 172 is pressed against the outer wall of the valve member 20, and the liquid tightness between the valve member 20 and the sleeve 173 and the insertion hole 12 is maintained.

The plate 176 is provided in the radial inner direction of the spring 175. The plate 176 has an L-shaped cross section and is in contact with both the end surface on the valve member 20 side of the oil cooler pipe 171 and the outer wall surface on the radially outer side of the sleeve 173 that are substantially orthogonal to each other.

The air conditioning pipe 18 includes an air conditioning pipe 181, a seat 182, a sleeve 183, a packing 184, a spring 185, and a plate 186.
The air conditioning pipe 181 is formed in a substantially cylindrical shape. The air conditioning pipe 181 is fixed to the opening 131 of the first housing 10. The air conditioning pipe 181 forms an air conditioning passage 180.
The seat 182 is a substantially annular member that is provided separately from the air conditioning pipe 181, for example, formed of PTFE. The sheet 182 has one opening 1801 as “another housing side opening”. The seat 182 is provided so as to be able to contact the outer wall of the valve member 20.

The sleeve 183 is a substantially cylindrical member provided between the air conditioning pipe 181 and the seat 182. The sleeve 183 has an end 1831 on the air conditioning pipe 181 side inserted into the air conditioning passage 180. An end portion 1832 opposite to the end portion 1831 of the sleeve 183 is formed to have an inner diameter larger than that of the end portion 1831 and supports the sheet 182.
The packing 184 is provided on the radially outer side of the sleeve 183 inserted into the air conditioning passage 180. The packing 184 maintains liquid tightness between the air conditioning passage 180 and the insertion hole 13.

The spring 185 is provided between the end surface 1811 on the valve member 20 side of the air conditioning pipe 181 and the end surface 1833 on the air conditioning pipe 181 side of the end portion 1832 of the sleeve 183. The spring 185 biases the seat 182 in a direction in which the air conditioning pipe 181 and the seat 182 are separated from each other. Accordingly, the seat 182 is pressed against the outer wall of the valve member 20, and the liquid tightness of the inside of the valve member 20 and the sleeve 183 and the insertion hole 13 is maintained.

The plate 186 is provided in the radial inner direction of the spring 185. As shown in FIG. 8, the plate 186 has an L-shaped cross section. The plate 186 is in contact with both the end surface 1811 of the air conditioning pipe 181 and the outer wall surface 1834 on the radially outer side of the sleeve 183 that are substantially orthogonal to each other.
For the convenience of the drawings, the configuration of the air conditioning pipe 18 has been described in detail, but the radiator pipe 16 and the oil cooler pipe 17 have the same configuration.

The valve member 20 is formed in a substantially bottomed cylindrical shape from resin and is accommodated in the valve member accommodating space 100. A rotation axis RA25 of the shaft 25 is positioned on the central axis of the valve member 20. The valve member 20 includes a valve member bottom 21, a first cylindrical portion 22 as “a radially outer outer wall of the valve member”, and a second cylindrical portion 23 as a “diametrically outer outer wall of the valve member”. The valve member 20 has a space 200 as a “communication path” formed by the valve member bottom portion 21, the first cylindrical portion 22, and the second cylindrical portion 23 inside.

The valve member bottom 21 is provided at a position facing the housing bottom 104 of the valve member housing space 100, and has a through hole 211 through which the shaft 25 can be inserted. When the shaft 25 is inserted through the through-hole 211, the valve member 20 and the shaft 25 cannot move relative to each other, and can rotate together. As shown in FIG. 10, the valve member bottom 21 has a plurality of ribs 212 on the surface on the space 200 side. The ribs 212 are formed to extend radially outward from the rotational axis RA25.

The side of the valve member bottom portion 21 facing the housing bottom portion 104 is formed so as to be separated from the housing bottom portion 104 toward the through-hole 211 from the radially outer edge where the first cylindrical portion 22 is provided. Thereby, as shown in FIG. 11, the valve member bottom 21 has a recess 210 as a “space that the valve member has” that is recessed in a direction along the rotation axis RA25.

The first cylinder portion 22 is formed so as to extend from the valve member bottom portion 21 in a direction opposite to the housing bottom portion 104. A second cylinder part 23 is provided at the end of the first cylinder part 22 opposite to the side connected to the valve member bottom 21. As shown in FIGS. 1, 2, and 11, the first cylindrical portion 22 has a cross-sectional shape that includes the rotation axis RA 25 of the outer wall surface 221, and an end portion that connects to the valve member bottom portion 21 and the second cylindrical portion 23. The center part is formed so as to swell outward in the radial direction compared to the end part.

The first cylinder part 22 has a valve member side opening 222 as “another valve member side opening” that communicates the space 200 with the outside of the first cylinder part 22. In the first embodiment, the first cylinder portion 22 has two valve member side openings 222. The valve member side opening 222 is formed so as to be able to communicate with the radiator passage 160 according to the rotation angle of the valve member 20. That is, the seat 162 of the radiator pipe 16 is pressed against the outer wall surface 221 that forms the valve member side opening 222.

The second cylinder part 23 is formed so as to extend in the direction opposite to the housing bottom part 104 from the end of the first cylinder part 22 opposite to the side connected to the valve member bottom 21. The second cylinder part 23 has an inflow port 230 as “one valve member side opening” on the opposite side to the first cylinder part 22 in the direction along the rotation axis RA25. Cooling water flowing from the engine 5 flows into the space 200 through the inflow port 230. As shown in FIGS. 1, 2, and 11, the second cylindrical portion 23 has an end where the cross-sectional shape including the rotation axis RA 25 of the outer wall surface 231 connects to the first cylindrical portion 22 and an end that forms the inlet 230. The central part is formed so as to swell outward in the radial direction compared to the part.

The second cylinder part 23 has valve

member side openings

232 and 233 as “other valve member side openings” that communicate the space 200 with the outside of the second cylinder part 23.
The valve member side opening 232 is formed to be able to communicate with the oil cooler passage 170 according to the rotation angle of the valve member 20. That is, the seat 172 of the oil cooler pipe 17 is pressed against the outer wall surface 231 forming the valve member side opening 232.
The valve member side opening 233 is formed so as to be able to communicate with the air conditioning passage 180 in accordance with the rotation of the valve member 20. That is, the seat 182 of the air conditioning pipe 18 is pressed against the outer wall surface 231 that forms the valve member side opening 233.

Here, FIG. 12 shows a cross-sectional view of a portion where the radiator pipe 16 and the valve member 20 abut on a virtual plane including the rotation axis RA25 of the valve member 20 in the fluid control valve 1.
As shown in FIG. 12, in the fluid control valve 1, an intersection Cp 20 between the virtual shape line SL 22 along the outer wall surface 221 of the first cylinder part 22 and the virtual shape SL 23 along the outer wall surface 231 of the second cylinder part 23 is the seat 162. And the valve member 20 are in contact with each other. The fluid control valve 1 has a depression 201 on the second cylinder part 23 side between the first cylinder part 22 and the second cylinder part 23 of the valve member 20.

The contact portion 24 is provided in the recess 210 of the valve member bottom portion 21. In the first embodiment, the contact portion 24 is formed integrally with the valve member 20. As shown in FIG. 11, the contact portion 24 has a position in the direction along the rotation axis RA25 of the end surface 240 facing the housing bottom portion 104 at a rotation axis RA25 of the end surface 213 facing the housing bottom portion 104 of the valve member bottom portion 21. It is the same as the position along the direction. As shown in FIG. 9, the contact portion 24 has two

side walls

241 and 242 and a rib 243.
The

side walls

241 and 242 are formed to extend radially in two different radial directions as seen from the rotation axis RA25.
The rib 243 is provided between the side wall 241 and the side wall 242. The rib 243 supports the

side walls

241 and 242.
The contact portion 24 is formed so as to be able to contact a restriction portion 19 provided on the housing bottom portion 104.

As shown in FIG. 14, the restricting portion 19 is a portion formed in a substantially arc shape on the end surface 109 of the housing bottom portion 104 facing the valve member bottom portion 21. In the first embodiment, the restricting portion 19 is formed integrally with the first housing 10. The restricting portion 19 protrudes from the end face 109 in the direction along the rotation axis RA25, and the tip of the protruding tip is located in the depression 210 as shown in FIG. As shown in FIG. 14, the restricting portion 19 is formed such that circumferential side surfaces 191 and 192 extend radially outward from the rotational axis RA25.

Here, the positional relationship between the contact portion 24 and the restricting portion 19 will be described with reference to FIG. FIG. 15 is a cross-sectional view taken along the line XV-XV in FIG. 2 and is a cross-sectional view perpendicular to the rotation axis RA25 at a portion where the contact portion 24 and the restricting portion 19 engage. In FIG. 15, for convenience, the direction in which the valve member 20 rotates is described as “clockwise” or “counterclockwise”.

FIG. 15 shows a state where the side surface 244 of the side wall 241 and the side surface 191 of the regulating portion 19 are in contact with each other. In this state, the valve member 20 is restricted from rotating clockwise.
On the other hand, when the valve member 20 rotates counterclockwise from the state shown in FIG. 15, the side surface 245 of the side wall 242 of the contact portion 24 contacts the side surface 192 of the restricting portion 19. Thereby, the valve member 20 is described to rotate counterclockwise.
That is, the valve member 20 is allowed to rotate in an angle range indicated by a two-dot chain line α1 in FIG. 15 due to the engagement between the contact portion 24 and the restricting portion 19 in the circumferential direction of the valve member 20.

(A) In the fluid control valve 1 according to the first embodiment, the abutting portion 24 that can abut on the regulating portion 19 that regulates the rotation of the valve member 20 is formed in a concave recess 210 of the valve member 20. . Thereby, since the valve member 20 can have the contact part 24 which does not protrude from the valve member 20, compared with the case where the contact part 24 is provided so that it may protrude from the valve member 20, the physique of the valve member 20 is improved. Can be small. Therefore, the rotation angle of the valve member 20 can be set within a desired angle range while reducing the size of the valve member 20.

(B) In the valve member bottom portion 21, a recess 210 is formed by forming it away from the housing bottom portion 104 toward the through hole 211 from the radially outer edge where the first cylindrical portion 22 is provided. Thereby, since the recess 210 is formed so that the depth becomes shallower in the radial direction from the center where the shaft 25 of the valve member bottom 21 is located, the flow resistance of the cooling water flowing through the space 200 can be reduced. it can. Therefore, the flow of the cooling water in the space 200 can be smoothly guided to the valve

member side openings

222, 232, 233.

(C) Further, when the depth of the recess 210 is formed so as to become shallower in the radially outward direction from the center where the shaft 25 of the valve member bottom 21 is located, the rotational axis of the contact portion 24 in the vicinity of the rotational axis RA25. The length in the direction along RA25 can be made relatively long. Thereby, since the contact area with the control part 19 of the contact part 24 can be enlarged, the damage of the contact part 24 by the stress which acts by engagement with the control part 19 can be prevented.

(D) Moreover, the valve member 20 has a plurality of ribs 212 on the surface on the space 200 side. Thereby, the cooling water flowing through the space 200 can be smoothly guided from the center where the shaft 25 of the valve member bottom portion 21 is located toward the radially outward direction.

(E) Further, the strength of the valve member bottom 21 can be improved by providing the rib 212 on the surface on the space 200 side. Thereby, damage of the contact part 24 by the stress which acts by engagement with the control part 19 can be prevented reliably.

(F) The restricting portion 19 is formed integrally with the first housing 10. Thereby, it can prevent that the control part 19 slip | deviates with respect to the 1st housing 10 by engagement with the contact part 24. FIG.

(G) The side surfaces 244 and 245 of the abutting portion 24 and the side surfaces 191 and 192 of the restricting portion 19 are formed radially outwardly from the rotational axis RA25. Thereby, when the side surface 244 and the side surface 191 come into contact with each other and when the side surface 245 and the side surface 192 come into contact with each other, the respective contact areas can be increased. Therefore, it is possible to reliably prevent the contact portion 24 and the restriction portion 19 from being damaged due to the stress acting on the engagement between the contact portion 24 and the restriction portion 19.

(H) The contact portion 24 has a rib 243 that supports the two

side walls

241 and 242. Thereby, compared with the case where a block-shaped contact part is shape | molded, the quantity of resin required in order to form the contact part 24 can be reduced.

(I) A groove 102 in which an O-ring 110 can be provided when the fluid control valve 1 is assembled to the cylinder head 501 is formed at the edge of the first housing 10 that forms the insertion hole 101. In addition, the first housing 10 is made of resin. Accordingly, when the bearing 14 is inserted into the insertion hole 101, deformation of the bearing 14 can be suppressed by deformation of the groove 102.

(J) When the bearing 14 is viewed from the direction along the rotation axis RA25 of the shaft 25, the plurality of connecting portions 143 are provided such that the intervals between the adjacent connecting portions 143 are the same angle α. Thereby, the force generated when the bearing 14 is press-fitted into the first housing 10 can be evenly distributed, and the displacement and deformation of the bearing can be prevented.

(K) In the bearing 14, the annular portion 142 and the bearing portion 140 are formed so as to be offset along the rotation axis RA25. Thereby, it is possible to prevent the force generated when the bearing 14 is press-fitted into the first housing 10 from directly acting on the bearing portion 140.

(L) The connecting portion 143 is formed so that the end on the side connected to the central portion 141 has substantially the same length as the central portion 141, and the length in the direction along the rotational axis RA25 increases as the distance from the rotational axis RA25 increases. It is formed to be shorter. Thereby, the deformation due to the force generated when the bearing 14 is press-fitted into the first housing 10 can be converted into a relatively large deflection of the connecting portion 143, and the force acting on the bearing portion 140 can be reduced.

(M) A gap through which cooling water can flow is formed between adjacent connecting portions 143. Since the portion where the gap is formed has relatively low rigidity, the force when the bearing 14 is press-fitted into the first housing 10 is converted into the bending of the portion having low rigidity, and the force acting on the bearing portion 140 is reduced. can do.

(N) When the bearing 14 is press-fit into the first housing 10, the inclined surface 144 of the bearing 14 and the abutting surface 103 of the first housing 10 are brought into contact with each other, so that the bearing 14 is positioned at a predetermined position of the first housing 10. Can be assembled. Thereby, it is possible to prevent the occurrence of rotation abnormality due to the deviation between the shaft 25 and the bearing 14.

(O) The drainage passage 108 of the first housing 10 discharges the cooling water entering the through hole 105 on the side where the bearing portion 106 is provided through the seal member 107 to the outside of the valve member accommodating space 100. Cooling water is prevented from entering the storage chamber 150. Thereby, it is possible to prevent the cooling water from being applied to the gears such as the rotation angle sensor 152 and the valve gear 156 stored in the storage chamber 150 and the motor 157 exposed in the storage chamber 150 from being damaged. Further, since it is possible to detect at an early stage that the cooling water is leaking through the seal member 107 by discharging water from the drainage channel 108, the malfunction of the seal member 107 can be detected at an early stage.

(P) In the fluid control valve 1, when viewed from the first housing 10 side, the position where the first small gear 1542 and the second large gear 1551 mesh, the position where the valve gear 156 and the second small gear 1552 mesh, and the motor gear 153 The motor gear 153, the first intermediate gear 154, the second intermediate gear 155, and the valve gear 156 are arranged so as to be in the order of positions where the first large gear 1541 meshes. Thereby, the second intermediate gear 155 can be arranged so that the first intermediate gear 154 and the valve gear 156 are close to each other in a direction substantially perpendicular to the rotation axis RA25 of the shaft 25. Therefore, the size of the fluid control valve 1 in the direction substantially perpendicular to the rotation axis RA25 can be reduced.
As shown in FIG. 7, the first large gear 1541 of the first intermediate gear 154 is formed so as to overlap a part of the second gear shaft 1553 of the second intermediate gear 155. As a result, the size of the fluid control valve 1 in the direction substantially perpendicular to the rotation axis RA25 can be further reduced, and the second intermediate gear 155 can be prevented from coming off the first housing 10 by the first intermediate gear 154. Can do.

(Q) The first gear shaft 1543 of the first intermediate gear 154 and the second gear shaft 1553 of the second intermediate gear 155 are formed with a plurality of

grooves

1544 and 1554 at portions inserted into the first housing 10. ing. Thereby, since the length of the site | part inserted can be shortened, the physique of the direction in alignment with rotating shaft RA25 of the fluid control valve 1 can be made small.

(R) Conventionally, when a shaft made of metal is inserted into a valve member made of resin, the stress of the rotational torque of the valve member and the force in a direction substantially perpendicular to the rotational axis of the shaft Since stress concentrates on the same part of the part of the valve member in which the shaft is inserted, excessive stress is applied. For this reason, there exists a possibility that a valve member may be damaged.
In the fluid control valve 1, the insert portion 253 of the shaft 25 is formed so that the cross-sectional shape substantially perpendicular to the rotation axis RA25 is a polygonal shape. Further, the shaft 25 has grooves 254 and 255 on both sides of the insert portion 253, the outer diameter of which is smaller than the outer diameter of the insert portion 253. Thereby, stress due to the rotational torque of the valve member 20 acts on the insert portion 253, while the

springs

165, 175, and 185 of the

pipes

16, 17, and 18 are in a direction substantially perpendicular to the rotational axis RA25 of the shaft 25. The stress when the force is applied acts on the grooves 254 and 255 and is dispersed. Therefore, damage to the valve member 20 can be prevented.

(S) The radiator pipe 16, the oil cooler pipe 17, and the air conditioning pipe 18 are provided in the radially inward direction of the

springs

165, 175, 185, and end faces of the

pipes

161, 171, 181 on the valve member 20 side and the sleeve 163. And

plates

166, 176, and 186 that are in contact with the outer wall surfaces of 173 and 183 on the radially outer side. As a result, the

plates

166, 176, 186 restrict the movement of the

springs

165, 175, 185 in the radial direction while maintaining the inner diameters of the

springs

165, 175, 185. Therefore, sliding between the

springs

165, 175, 185 and the

sleeves

163, 173, 183 and sliding between the

springs

165, 175, 185 and the first housing 10 can be prevented.

(T) The valve member 20 has a recess 201 on the second cylinder part 23 side between the first cylinder part 22 and the second cylinder part 23. Accordingly, the seat 162 of the radiator pipe 16 that can come into contact with the outer wall surface 221 of the first cylinder part 22, the seat 172 of the oil cooler pipe 17 that can come into contact with the outer wall face 231 of the second cylinder part 23, and the air conditioning pipe. The size of the fluid control valve 1 in the direction substantially perpendicular to the rotation axis RA25 can be further reduced while preventing the 18 seats 182 from interfering.

(Second embodiment)
A valve device according to the second embodiment will be described with reference to FIGS. In the second embodiment, the position where the contact portion and the restricting portion are provided is different from the first embodiment.

16 to 19 show a fluid control valve 2 as a “valve device” according to a second embodiment. The fluid control valve 2 includes a first housing 10, a bearing 39, a second housing 15, a radiator pipe 16, an oil cooler pipe 17, an air conditioning pipe 18, a valve member 20, a connecting member 30, and a shaft 25.

The bearing 39 is provided in the insertion hole 101. The bearing 39 includes a central portion 141, an annular portion 142, a plurality of connecting portions 143, and a restricting portion 394.

As shown in FIGS. 16 and 18, the restricting portion 394 is formed so as to protrude from one of the plurality of connecting portions 143 along the rotation axis RA25 and toward the valve member 20. As shown in FIG. 19, the restricting portion 394 is located in the valve member accommodation space 100, and the end on the valve member 20 side is located in the space 200. The restricting portion 394 is formed so that the height protruding in the direction of the valve member 20 increases from the annular portion 142 toward the central portion 141. In FIG. 18, a dotted line L 21 indicating the boundary between the connecting portion 143 and the restricting portion 394 is shown.

The connecting member 30 is provided between the edge portion 234 of the second cylinder portion 23 and the shaft 25 as “one end portion in the direction along the rotation axis of the valve member” that forms the inflow port 230. The connecting member 30 includes a central portion 301 provided on the radially outer side of one end portion 251 of the shaft 25, a plurality of connecting portions 302 that connect the edge portion 234 and the central portion 301 of the second cylindrical portion 23, and A contact portion 34 is provided. The connecting member 30 is formed integrally with the valve member 20.
The connecting portion 302 is formed radially outwardly from the central portion 301 toward the edge portion 234 of the second cylindrical portion 23. A gap through which cooling water can flow is formed between adjacent connecting portions 302. As shown in FIG. 19, the connecting portion 302 is formed to be inclined with respect to the rotation axis RA25. Specifically, the connecting portion 302 is formed so as to approach the valve member bottom portion 21 from the edge portion 234 of the second cylindrical portion 23 toward the central portion 301.

The contact portion 34 is provided on the opposite side of the valve member bottom 21 of one of the plurality of connecting portions 302. As shown in FIG. 19, the contact portion 34 is formed so that the length in the direction along the rotation axis RA 25 becomes shorter from the central portion 301 toward the edge portion 234 of the second cylindrical portion 23. The position in the direction along the rotation axis RA25 of the end surface 341 on the bearing 39 side of the contact portion 34 is the same as the position in the direction along the rotation axis RA25 of the end surface 235 on the bearing 39 side of the edge portion 234 of the second cylindrical portion 23. It has become. 17 and 19 show a dotted line L22 indicating the boundary between the connecting portion 302 and the contact portion 34.

In the fluid control valve 2 according to the second embodiment, the restricting portion 394 is provided on the bearing 39 that supports one end 251 of the shaft 25. Further, the abutting portion 34 that can abut on the restricting portion 394 is provided on the connecting member 30 that is coupled to one end portion 251 of the shaft 25. The position of the end surface 341 of the contact portion 34 in the direction along the rotation axis RA25 is the same as the position of the end surface 235 of the second cylindrical portion 23 in the direction along the rotation axis RA25. That is, the abutting portion 34 is provided in the space 200 as the “space of the valve member” of the valve member 20. Thereby, the second embodiment has the effects (a), (d), (i) to (t) of the first embodiment.

(Third embodiment)
A valve device according to a third embodiment will be described with reference to FIGS. In the third embodiment, the position where the contact portion and the restricting portion are provided is different from the first embodiment.

20 and 21 show a fluid control valve 3 as a “valve device” according to a third embodiment. The fluid control valve 3 includes a first housing 10, a bearing 49, a second housing 15, a radiator pipe 16, an oil cooler pipe 17, an air conditioning pipe 18, a valve member 20, a contact portion 44, and a shaft 25.

The bearing 49 is provided in the insertion hole 101. The bearing 49 includes a central portion 141, an annular portion 142, a plurality of connecting portions 143, and a restricting portion 494.
As shown in FIG. 20, the restricting portion 494 is formed so as to protrude from one connecting portion 143 among the plurality of connecting portions 143 in the direction along the rotation axis RA25 and toward the valve member bottom portion 21. As shown in FIG. 21, the restricting portion 494 is located in the valve member accommodation space 100, and the end on the valve member 20 side is located in the space 200. The restricting portion 494 is provided in the vicinity where the annular portion 142 and the connecting portion 143 are connected, that is, in the vicinity of the outer peripheral end of the bearing 49. FIG. 21 shows a dotted line L31 indicating the boundary between the connecting portion 143 and the restricting portion 494.

As shown in FIGS. 20 and 21, the abutting portion 44 is formed so as to protrude in the radial inward direction from the edge portion 234 of the second cylindrical portion 23. The contact portion 44 is formed integrally with the valve member 20. The position of the end surface 441 on the bearing 49 side of the contact portion 44 in the direction along the rotation axis RA25 is the same as the position of the end surface 235 of the second cylindrical portion 23 in the direction along the rotation axis RA25. In FIG. 21, a dotted line L32 indicating the boundary between the edge portion 234 and the contact portion 44 is shown.

In the fluid control valve 3 according to the third embodiment, the restricting portion 494 is provided on the bearing 49 that supports one end 251 of the shaft 25. Further, the contact portion 44 that can contact the restriction portion 494 is formed so as to protrude from the edge portion 234 of the second cylindrical portion 23 in the radial inward direction. The position of the end surface 441 of the contact portion 44 in the direction along the rotation axis RA25 is the same as the position of the end surface 235 of the second cylindrical portion 23 in the direction along the rotation axis RA25. That is, the contact portion 44 is provided in the space 200 as the “space of the valve member” of the valve member 20. Thereby, the third embodiment has the effects (a), (d), (i) to (t) of the first embodiment.

(Fourth embodiment)
A valve device according to the fourth embodiment will be described with reference to FIGS. In the fourth embodiment, the shape of the contact portion is different from that of the first embodiment.

22 and 23 show a valve member 20 included in a fluid control valve as a “valve device” according to a fourth embodiment. The fluid control valve according to the fourth embodiment includes a first housing 10, a bearing 14, a second housing 15, a radiator pipe 16, an oil cooler pipe 17, an air conditioning pipe 18, a valve member 20, a contact portion 54, and a shaft. 25.

The contact portion 54 is provided in the recess 210 of the valve member bottom 21. The contact portion 54 is formed so as to be able to contact the restriction portion 19. The side surfaces 541 and 542 that can come into contact with the restricting portion 19 of the contact portion 54 are formed radially outwardly from the rotational axis RA25.

As shown in FIG. 23, the abutment portion 54 has a position in the direction along the rotation axis RA25 of the end surface 540 opposite to the space 200 across the valve member bottom portion 21, and the rotation axis of the end surface 213 of the valve member bottom portion 21. It is located closer to the housing bottom 104 than the position along the RA 25 (see the dotted line L41 in FIG. 23).

In the fluid control valve according to the fourth embodiment, the abutment portion 54 that can abut on the regulating portion 19 is provided in the recess 210 of the valve member bottom portion 21, but a part thereof is formed to protrude from the recess 210. Thereby, the fourth embodiment has the effects (a) to (g) and (i) to (t) of the first embodiment.
Further, since the length of the contact portion 54 along the rotation axis RA25 is longer than that of the contact portion 24 of the first embodiment, the contact area with the restricting portion 19 can be widened. Thereby, damage of the contact part 54 by the stress which acts by engagement with the control part 19 can be prevented reliably.

(Fifth embodiment)
A valve device according to a fifth embodiment will be described with reference to FIGS. In the fifth embodiment, the position where the contact portion is provided is different from that of the first embodiment.

24 and 25 show a valve member 20 included in a fluid control valve as a “valve device” according to a fifth embodiment. The fluid control valve according to the fifth embodiment includes a first housing 10, a bearing 14, a second housing 15, a radiator pipe 16, an oil cooler pipe 17, an air conditioning pipe 18, a valve member 20, a contact portion 64, and a shaft. 25.

The contact portion 64 is provided in the recess 210 of the valve member bottom 21. The contact portion 64 includes two

side walls

641 and 642 and a rib 643.
As shown in FIGS. 24 and 25, the

side walls

641 and 642 are formed to extend radially in two different radially outward directions as viewed from the rotation axis RA25.
The rib 643 is provided between the side wall 641 and the side wall 642. The rib 643 supports the

side walls

641 and 642.
The abutting portion 64 is formed such that the side surface 644 of the side wall 641 and the side surface 645 of the side wall 642 can abut on the restricting portion 19. The side surfaces 644 and 645 are formed radially outward from the rotational axis RA25.

In the fluid control valve according to the fifth embodiment, the relationship between the position where the contact portion 64 is formed and the position of the valve member side opening 222 formed at the position closest to the contact portion 64 in the direction along the rotation axis RA25. There are features. Details thereof will be described with reference to FIG.
FIG. 25 is a schematic diagram in which the valve member 20 and the contact portion 64 are projected on a virtual plane perpendicular to the rotation axis RA25. As shown in FIG. 25, the projected view of the contact portion 64 on the virtual plane perpendicular to the rotation axis RA25 is formed at a position different from the projected view of the valve member side opening 222 as the “close valve member side opening”. The Specifically, the projection of the contact portion 64 is an angle range α5 in which the projection of the valve member side opening 222 is shown (the narrow side of the range between the solid line L51 and the solid line L52 passing through the rotation axis RA25). The angle range β5 (range on the wider side of the range between the solid line L51 and the solid line L52).

In the fifth embodiment, on the virtual plane perpendicular to the rotation axis RA25, the projection of the contact portion 64 has an angle range α5 in which the projection of the valve member side opening 222 closest to the valve member bottom 21 is shown. It is shown in the excluded angle range β5. Thereby, even if a comparatively large stress acts on the contact part 64 by contact | abutting with the control part 19, a deformation | transformation of the contact part 64 can be suppressed. Therefore, in the fifth embodiment, the effects (a) to (t) of the first embodiment can be achieved, and the deformation and breakage of the valve member 20 can be reliably prevented.

(Sixth embodiment)
A valve device according to the sixth embodiment will be described with reference to FIG. In the sixth embodiment, the shape of the valve member is different from that of the first embodiment.

FIG. 26 shows a valve member 70 included in the fluid control valve as the “valve device” according to the sixth embodiment. The fluid control valve according to the sixth embodiment includes a first housing 10, a bearing 14, a second housing 15, a radiator pipe 16, an oil cooler pipe 17, an air conditioning pipe 18, a valve member 70, an abutting portion 24, and a shaft. 25. The valve member 70 is formed in a substantially bottomed cylindrical shape and is accommodated in the valve member accommodation space 100. The valve member 70 includes a valve member bottom 21 and a cylindrical portion 72 as an “outer wall on the radially outer side of the valve member”. The valve member 70 has a space 700 as a “communication path” formed by the valve member bottom 21 and the cylindrical portion 72 therein.

The cylindrical portion 72 is formed to extend in a direction opposite to the housing bottom portion 104 of the valve member bottom portion 21. The cylinder part 72 has valve

member side openings

721, 722, and 723 as “other valve member side openings” that communicate the space 700 with the outside of the cylinder part 72.
The valve member side opening 721 is formed in the vicinity of the valve member bottom 21. The valve member side opening 721 is formed to be able to communicate with the air conditioning passage 180 according to the rotation angle of the valve member 70.
The valve member side opening 722 is formed at a position farther from the valve member bottom 21 than the valve member side opening 721. The valve member side opening 722 is formed to be able to communicate with the oil cooler passage 170 according to the rotation angle of the valve member 70.
The valve member side opening 723 is formed so as to overlap both the circumferential direction of the valve member side opening 721 and the circumferential direction of the valve member side opening 722. The valve member side opening 723 is formed to be able to communicate with the radiator passage 160 according to the rotation angle of the valve member 70.
Further, the cylindrical portion 72 has an inflow port 720 as “one valve member side opening” on the opposite side to the valve member bottom portion 21 in the direction in which the shaft 25 extends.

In the sixth embodiment, the valve member 70 has two valve

member side openings

721 and 722 arranged in a direction along the rotation axis RA25, while the valve member side opening 723 is in the circumferential direction of the valve member side opening 721. And the valve member side opening 722 are formed so as to overlap with each other in the circumferential direction. Even in such a configuration, the contact portion 24 provided in the depression 210 of the valve member bottom portion 21 engages with the restriction portion 19 so that the rotatable angle of the valve member 70 is within a desired angle range. It can be. Therefore, the sixth embodiment has the effects (a) to (t) of the first embodiment.

(Other embodiments)
In the above-described embodiment, the fluid control valve as the “valve device” is applied to a cooling system that cools the engine. However, the field to which the fluid control valve is applied is not limited to this. What is necessary is just to apply to the scene which controls the distribution | circulation of the fluid with the rotation angle of the valve member with respect to a valve housing.

In the above-described embodiment, the valve member is formed in a bottomed cylindrical shape. However, the shape of the valve member is not limited to this. A so-called ball valve formed in a spherical shape may be used.

In the above-described embodiment, the valve member bottom portion has ribs formed on the space-side surface of the valve member so as to extend radially outward from the rotation axis. However, the shape of the rib is not limited to this.

In the above embodiment, the “valve housing” has four “housing side openings”, and the “valve member” has five “valve member side openings”. However, the number of “housing side openings” and the number of “valve member side openings” are not limited thereto.

In the above-described embodiment, each of the radiator pipe, the oil cooler pipe, and the air conditioning pipe has an L-shaped plate having a cross-sectional shape that prevents sliding between the spring, the sleeve, and the first housing. However, the member which has the same effect is not limited to this. 27 and 28 show modifications of members that have the same effect.
In the modification shown in FIG. 27, two plates are provided. Of the two plates, the plate 187 has an L-shaped cross section, and is provided so as to contact the outer wall surface 1834 of the sleeve 183 while contacting the end surface 1833 of the sleeve 183.
In the modification shown in FIG. 28, the shape of the sleeve is different from that of the first embodiment. Specifically, a region 1835 in the vicinity of the end portion 1832 of the sleeve 183 extends in the radially outward direction.
27 and 28, the radial movement of the spring 185 can be restricted while maintaining the inner diameter of the spring 185 as in the above-described embodiment.

In the above-described embodiment, the shaft has the insert portion and the grooves provided on both sides of the insert portion. However, the positional relationship between the insert portion and the groove is not limited to this. The modification regarding the shape of a shaft is shown to FIG.
In the modification shown in FIG. 29, the shaft 25 has a cross-sectional shape substantially perpendicular to the rotation axis RA25 on the other end 252 side of one end 251 and the one end 251 side of the other end 252. It has a polygonal insert portion 253. At this time, the groove 254 is provided between the two insert portions 253.
In the modification shown in FIG. 30, the shaft 25 has an insert portion 253 having a polygonal cross-sectional shape substantially perpendicular to the rotation axis RA25 on the other end portion 252 side of the one end portion 251. At this time, one groove 254 is provided between the insert portion 253 and the other end portion 252. As a modification of the shaft 25 shown in FIG. 30, an insert portion 253 is provided on one end portion 251 side of the other end portion 252, and a groove 254 is provided between the insert portion 253 and the one end portion 251. Also good.
29 and 30 can prevent the valve member 20 from being damaged as in the above-described embodiment.

In the first embodiment, the restricting portion is formed integrally with the first housing. However, it may be formed separately from the first housing.

In the first, fourth to fifth embodiments, the recess is formed so that the depth becomes shallower in the radially outward direction from the center where the shaft at the bottom of the valve member is located. However, the shape of the recess is not limited to this. It may be a certain depth. In this case, since the area of the side surface increases as the depth increases, the contact portion can be prevented from being damaged.

In the first to fifth embodiments, it is assumed that the valve member side opening of the first cylinder portion communicates with the radiator passage. One of the valve member side openings of the second cylinder portion communicates with the oil cooler passage, and the other valve member side opening communicates with the air conditioning passage. However, the relationship in communication between the valve member side opening and these passages is not limited to this. One valve member side opening may communicate with two passages, or one valve member side opening may communicate with two different passages according to the rotation angle of the valve member.

In the above-described embodiment, the valve member bottom portion has a plurality of ribs formed on the space-side surface so as to extend radially outward from the rotational axis. However, the shape of the rib is not limited to this.

FIG. 31 is a perspective view of a valve member having a rib having a shape different from that of the first embodiment. FIG. 32 is a sectional view including the rotation axis RA25 of the valve member shown in FIG.
As shown in FIG. 31, the valve member 20 is provided with a plurality of ribs 812 from the rotation axis RA25 toward the valve member side opening 222 on the surface of the valve member bottom 21 on the space 200 side. The plurality of ribs 812 are formed so as to be substantially parallel to each other. Thereby, like the rib 212 of the first embodiment, the cooling water flowing in the space 200 can be smoothly guided from the center of the valve member bottom 21 toward the radially outward direction, and the strength of the valve member bottom 21 can be increased. Can be improved.

The contact portion of the fourth embodiment may be provided at the position of the contact portion of the fifth embodiment.

As described above, the present disclosure is not limited to such an embodiment, and can be implemented in various forms without departing from the gist thereof.

This disclosure has been described based on embodiments. However, the present disclosure is not limited to the embodiments and structures. The present disclosure also includes various modifications and modifications within the equivalent scope. Also, various combinations and forms, as well as other combinations and forms including only one element, more or less, are within the scope and spirit of the present disclosure.

Claims

An internal space (100) and a valve housing (10, 15, 16, 17, 18) having a plurality of housing side openings (101, 1601, 1701, 1801) communicating the internal space with the outside;
A plurality of valve member side openings (230, 222, 232, 233, 720, 721, 722, 723) that are rotatably accommodated in the valve housing and communicated with the plurality of housing side openings; A valve member (20, 70) having a communication path (200, 700) communicating with the member side opening;
A restricting portion (19, 394, 494) capable of restricting rotation of the valve member;
A contact portion (24, 34, 44, 54, 64) provided in the space (200, 210) of the valve member and capable of contacting the restriction portion;
A shaft (25) for rotatably supporting the valve member;
A valve device comprising:
The valve member is formed in a bottomed cylindrical shape,
The shaft is provided such that a rotation axis (RA25) is positioned on a central axis of the valve member,
The valve member side openings (230, 720) of the plurality of valve member side openings that communicate with the housing side opening (101) of the plurality of housing side openings are in a direction along the rotation axis of the valve member. Formed at one end (234),
Other valve member side openings (222, 232, 233, 721, 722, 723) that can communicate with other housing side openings (1601, 1701, 1801) of the plurality of housing side openings Is formed on the outer wall (22, 23, 72) on the radially outer side of the valve member,
The space of the valve member in which the contact portion is provided is a recess (210) formed in a concave shape on the valve member bottom (21) which is the other end of the valve member in the direction along the rotation axis. And
The valve device according to claim 1, wherein the restricting portion is provided in the valve housing facing the bottom of the valve member.
The valve device according to claim 2, wherein the depth of the recess becomes shallower in a radially outward direction from a center of the valve member bottom portion where the shaft is located.
A plurality of other valve member side openings,
When the adjacent valve member side opening (222) closest to the contact portion and the contact portion among the plurality of other valve member side openings are projected on a virtual plane perpendicular to the shaft, 4. The valve device according to claim 2, wherein the projection of the contact portion is formed at a position different from the projection of the adjacent valve member side opening on the virtual plane.
The valve member is formed to extend radially outward from a center of the valve member bottom portion where the shaft is located on a side opposite to the side where the contact portion is provided on the valve member bottom portion. The valve device according to any one of claims 2 to 4, further comprising a rib (212, 812).
6. The valve device according to claim 5, wherein the valve member has the one valve member side opening on a side opposite to a side where the contact portion of the valve member bottom is provided.
The valve device according to any one of claims 2 to 6, wherein the restricting portion is formed integrally with the valve housing.
The valve member is formed in a bottomed cylindrical shape,
The shaft is provided such that a rotation axis (RA25) is positioned on a central axis of the valve member,
One valve member side opening (230) of the plurality of valve member side openings communicating with one housing side opening (101) of the plurality of housing side openings is one of the valve members in the direction along the rotation axis. Formed at the end (234),
The other valve member side openings (222, 232, 233) that can communicate with the other housing side openings (1601, 1701, 1801) of the plurality of housing side openings are formed on the valve members. Formed on the radially outer outer walls (22, 23),
The space of the valve member in which the contact portion is provided is the communication path,
2. The valve device according to claim 1, wherein the restricting portion is provided in a bearing (39, 49) positioned in the one valve member side opening and rotatably supporting one end portion (251) of the shaft.
The valve device according to claim 8, wherein the contact portion is provided on a connecting member (30) that connects one end of the valve member and the shaft.
The valve device according to claim 8, wherein the contact portion is provided at one end portion of the valve member and protrudes in a radially inward direction.
The surface (244, 245, 541, 542, 644, 645) of the contact portion that can contact the restriction portion and the surface (191, 192) of the restriction portion that can contact the contact portion rotate. The valve device according to any one of claims 1 to 10, wherein the valve device is formed to extend in a radially outward direction when viewed from a shaft.