| 摘要 |
The invention can improve the flow (Cv value) at the low pressure side of the valve core internally arranged in a sliding flow path switching valve, and modifies the shape of the bowl-shaped recess (10A) of the valve core (10), wherein when the diameter of the valve port is D (mm); the spacing between ports is P (mm); the length of the bowl-shaped recess is L (mm); the width of the bowl-shaped recess is W (mm); and the height of the bowl-shaped recess is H (mm), 8 mm =< D<= 12 mm, 1.3=< P/D<= 1.7, 1.00 =<L/(P+ D)<= 1.06, 1.05=< W/D <=1.15, and 0.99=< H/D <= 1.39, and more preferably, 1.00 =< H/D <=1.10, or 1.11=< H/D<=1.21, or 1.24=< H/D>= 1.34. |
