Gas control valve

Abstract

Abstract PURPOSE:To facilitate assembly of a damper diaphragm and permit the damping effect to be developed effectively by forming the annular concaved parts each having a small hole on the upper and lower membrane plates which clamp a diaphragm therebetween and allowing said small holes to communicate to the small hole on a diaphragm. CONSTITUTION:The upper edge of a valve body 5 is abutted with the contact part 7 of a damper diaphragm 6, and placed oppositely to the nonmagnetic pushing rod 17 at the lower edge of a plunger 12, keeping the contact part 7 interposed. The damper diaphragm 6 is clamped vertically by the membrane plates 9 and 10, and the circumferential concaved part 26 is formed on each membrane plate 9, 10, and a small hole 11 as a spill port is formed on the concaved part, and also a small hole 11 as damper hole is formed on the damper diaphragm 6 corresponding to the concaved part 26. As the small holes on the membrane plates 9 and 10 always communicate through the concaved part 26, fabrication is facilitated and the damping function is promoted effectively, even if alignment of small holes on the membrane plates 9 and 10 is not taken care of.

Inventors

• 👤 Masaji Yamauchi
• 👤 山内　正次
• 👤 Takashi Tanahashi
• 👤 隆 棚橋
• 👤 Hideo Uematsu
• 👤 英夫 植松
• 👤 Tomohide Matsumoto
• 👤 朋秀 松本

Bibliographic Details