To provide a pressure regulator having an adiabatic compression prevention mechanism and a pressure instruction mechanism.
A pressure regulator A includes an adiabatic compression prevention mechanism B and a pressure instruction mechanism. The adiabatic compression prevention mechanism B is disposed on a primary-side passage 1 of the pressure regulator A and includes a partition member 11 and a first spring 12. The partition member 11 which is disposed in a step portion 10 so as to slide and in which a small channel is formed in the center and a large channel is formed in the outer circumference is configured to block the large channel when being abutted with the step portion. In the partition member 11, a communication path which communicates the small channel and the large channel is formed at a downstream side rather than an upstream-side end face. The first spring 12 energizes the partition member to an upstream side in a gas distribution direction.
TSUBOKO HISASHI
MIZUNO SEIJI
TAKAHASHI MASAO
| JPH0419280Y2 | 1992-04-30 | |||
| JP2010203868A | 2010-09-16 | |||
| JP2007064372A | 2007-03-15 |
Next Patent: OBJECT DETECTION SYSTEM