HEAT UTILIZATION SYSTEM UTILIZING HYDROGEN OCCLUSION ALLOY

摘要

PROBLEM TO BE SOLVED: To solve the problem that a heating medium leaks between first and second ports where they are not selected to be connected when a plurality of first and second ports that are allowed to intermit by a reciprocating movement switching valve coincide within one stroke. SOLUTION: In an a type valve body 14, two first ports 17 and three second ports 18 are provided while being shifted at least by one stroke, thus preventing the heating medium from leaking. Also, an a-type hollow value 15 is used to switch the connection between the first and second ports 17 and 18 via a hollow part 9, and the length of the a-type hollow valve 15 is reduced and the number of sealing materials 10 is reduced. Similarly, the first and second ports of a b-type valve body and a c-type valve body are also provided while being shifted at least by one stroke, and the first and second ports of the b-type hollow valve and c-type hollow valve are switched via the hollow part 9, and the valve length is reduced and the number of sealing materials 10 is reduced.