| 摘要 |
PROBLEM TO BE SOLVED: To picking high-temperature powder or a slight quantity of powder in a fixed quantity by forming a rotary valve element chamber storing a rotary valve element with a cylinder section and two side plates fitted on both sides of it, and making a temperature adjustment on a valve element and the powder picked in a fixed quantity. SOLUTION: A rotary valve element chamber storing a rotary valve element is constituted of three portions: a cylinder section 13 and two side plates 2, 3 fitted on both sides of it. The side plates 2, 3 are provided with channels 5 across the rotary valve chamber, and a heating medium fluid is fed to the channels 5 for the purpose of a temperature adjustment. Two opening sections to the outside are arranged on a cavity as the inlet and outlet of the heating medium. The fluid is fed and discharged from the opening sections for the temperature adjustment of the valve element and powder. SUS 316L is used for the material to increase durability, and the heat-resistant temperature is set to 300 deg.C. The picked quantity of powder in one rotation is 47.6 ml. The revolving speed of the rotary valve element 9 is measured by detecting one hole provided on a metal disk 14 fitted to a rotary shaft with a photosensor 10.
|
