Patent · US Active

Pressure reducing apparatus

US9086701B2 · kind B2 · utility

2Cited by

4References

6Claims

0Family size

Assignee

SMC CORPORATION · JP

Inventors

Masayuki Okitsu · Tsukubamirai, JP
Naoki Iguma · Ibaraki, JP
Kenji Tsukamoto · Tsukubamirai, JP

Key dates

Filing date	Jun 15, 2011
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Apr 4, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7793
WIPO fieldControl
WIPO sectorInstruments

Abstract

A pressure reducing apparatus includes a body being equipped with a first side port through which a pressure fluid is supplied and a second side port through which the pressure fluid having been reduced in pressure is discharged. Further, a feedback passage is formed, which establishes communication between the second side port and a third diaphragm chamber that faces toward a pilot valve. Additionally, a pressure fluid that flows through the second side port is introduced through the feedback passage into the third diaphragm chamber, whereby a third diaphragm is pressed upwardly against an elastic force of a second spring into equilibrium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.