To provide a motor driven valve having a plurality of valve functions for selectively opening/closing four gateways.
The motor driven valve comprises a valve body 10 having a first passage part 31 for communicating the first gateway 41 with the second gateway 42, and a second passage part 32 for communicating the third gateway with the fourth gateway, a valve shaft 20 turnably fitted through the valve body 10, and a driving means 50. A third passage part 33 is formed between the first passage part 31 and the second passage part 32, and a first communication passage 35 and a second communication passage 36 are formed for communicating the third passage part 33 with the first passage part 31 and for communicating the third passage part 33 with the second passage part 32, respectively. The valve shaft 20 has a first valve element 21 and a second valve element 22 formed at a predetermined angle space in an integrally rotatable manner for selectively opening/closing the first passage part 31 or the third passage part 33 and for selectively opening/closing the second passage part 32, respectively. A throttle member 25 is mounted in the third passage part 33.
COPYRIGHT: (C)2008,JPO&INPIT
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Sekiya Mitsuo
Yasushi Hayakawa