Title:
PRESSURE BOOSTER FOR NITROGEN GAS
Document Type and Number:
Japanese Patent JP3792000
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent a decrease in the purity of nitrogen gas due to a leak of compressed air, in a pressure booster of nitrogen gas intensifying a pressure of nitrogen gas by compressed air.
SOLUTION: An intermediate chamber 36 between rod packing 35a sealing a rod 35 inserted through a center body 22, an intermediate chamber 68 in a pilot valve 47B for switching a switch valve 28, and an intermediate chamber 85 in a governor 29 for adjusting a secondary pressure of nitrogen gas, are respectively provided. These intermediate chambers are opened respectively to the outside by a passage, and compressed air leaking to a booster chamber side from a drive chamber side and nitrogen gas leaking to the drive chamber side from the booster chamber side are discharged to the outside by these intermediate chambers.
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Inventors:
Morio Hideo
Fukamachi Koichi
Mikio Yamachi
Fukamachi Koichi
Mikio Yamachi
Application Number:
JP9014797A
Publication Date:
June 28, 2006
Filing Date:
March 25, 1997
Export Citation:
Assignee:
SMC Corporation
International Classes:
F15B3/00; (IPC1-7): F15B3/00
Domestic Patent References:
| JP60143176U | ||||
| JP63310318A | ||||
| JP4059379U | ||||
| JP5044632A | ||||
| JP55153873A | ||||
| JP60043184A | ||||
| JP4822483B2 | ||||
| JP63102976U |
Attorney, Agent or Firm:
Hiroshi Hayashi
Masao Uchiyama
Masao Uchiyama
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