Multiport valve

A multiport valve comprising:

• a casing having an inlet port, an outlet port, an opening transverse to said ports therethrough wherein said inlet port is in fluid communication with said casing;
• a cylinder having an axial channel with a channel surface and a depression therein, said cylinder rotatably inserted in said valve casing opening;
• a seal disposed adjacent to the outlet port;
• and
• a ball mounted within said casing adjacent to said seal and biased toward said cylinder, wherein said depression may be selectively aligned with said biased ball positioning said ball away from said seal and placing said outlet port and said casing in fluid communication, and wherein said depression may be selectively misaligned with respect to said biased ball and aligned with respect to said channel surface, positioning said ball in a sealing engagement with said seal thus blocking fluid communication between said outlet port and said casing.

A multiport valve comprising:

• a casing having a fluid inlet port, a fluid outlet port, and a central opening;
• a cylinder having a longitudinal axis, a channel disposed about said longitudinal axis said channel having a channel surface and a depression therein, said cylinder rotatably inserted in said valve casing opening;
• a seal disposed adjacent to the outlet port;
• and
• a bearing disposed in between said cylinder and said casing;
• a biasing member disposed within said valve casing and angled obtusely or acutely with respect to said longitudinal axis such that said biasing member points toward said cylinder;
• and
• a ball mounted within said casing adjacent to said biasing member and biased toward said cylinder wherein said cylinder may be selectively rotated against said bearing such that said depression may be aligned with said biased ball positioning said ball away from said seal for opening the outlet port, and wherein said cylinder may be selectively rotated against said bearing such that said depression may be selectively misaligned with respect to said biased ball and aligned with respect to said channel surface, positioning said ball in a sealing engagement with said seal thus closing said outlet port.