Valve device

A valve device configured to control coolant water of a heating element of a vehicle, the valve device comprising:

• a housing having a housing main body internally forming an internal space, an attachment surface formed on an outer wall of the housing main body to face the heating element in a state of being attached to the heating element, a port which is open on the attachment surface and connects the internal space and an outside of the housing main body to each other, a plurality of fastening portions formed integrally with the housing main body, and a plurality of fastening holes each of which is formed corresponding to a respective one of the plurality of fastening portions;
• and
• a valve having a valve body rotatable about a rotation axis inside the internal space, a valve body internal flow channel formed inside the valve body and capable of communicating with the port, and a shaft provided in a rotation direction;
• a partition wall portion which partitions the internal space and the outside of the housing main body from each other;
• and
• a drive unit provided on a side opposite to the internal space with respect to the partition wall portion, and capable of driving the valve body to rotate via the shaft, wherein
• the housing main body is fixed to the heating element by a fastening member screwed to the heating element through the fastening hole, and
• the fastening hole includes a first fastening hole formed outside in a radial direction of an opening of the port, a second fastening hole formed to interpose the opening of the port with the first fastening hole, and a third fastening hole formed on a side of the first fastening hole and the second fastening hole close to the drive unit, wherein
• the opening of the port has a center that is position on a straight line connecting a first point of the first fastening hole and a second point of the second fastening hole;
• the housing has a positioning portion formed on the attachment surface and capable of positioning the housing main body by engaging with another member;
• and
• the positioning portion includes a first positioning portion formed outside in the radial direction of the opening of the port and a second positioning portion formed to interpose the opening of the port with the first positioning portion.

A valve device configured to control coolant water of a heating element of a vehicle, the valve device comprising:

• a housing having a housing main body internally forming an internal space, an attachment surface formed on an outer wall of the housing main body to face the heating element in a state of being attached to the heating element, a port which is open on the attachment surface and connects the internal space and an outside of the housing main body to each other, a plurality of fastening portions formed integrally with the housing main body, and a plurality of fastening holes each of which is formed corresponding to a respective one of the plurality of fastening portions;
• and
• a valve having a valve body rotatable about a rotation axis inside the internal space, a valve body internal flow channel formed inside the valve body and capable of communicating with the port, and a shaft provided in a rotation direction;
• a partition wall portion which partitions the internal space and the outside of the housing main body from each other;
• and
• a drive unit provided on a side opposite to the internal space with respect to the partition wall portion, and capable of driving the valve body to rotate via the shaft, wherein
• the housing main body is fixed to the heating element by a fastening member screwed to the heating element through the fastening hole,
• the fastening hole includes a first fastening hole formed outside in a radial direction of an opening of the port, a second fastening hole formed to interpose the opening of the port with the first fastening hole, and a third fastening hole formed on a side of the first fastening hole and the second fastening hole close to the drive unit,
• the housing has a positioning portion formed on the attachment surface and capable of positioning the housing main body by engaging with an other member, and
• the positioning portion includes a first positioning portion formed outside in the radial direction of the opening of the port and a second positioning portion formed to interpose the opening of the port with the first positioning portion.