Back to results
US 6,585,226 B2Granted
Two-way valve
AssigneeSMC Corporation
InventorsYoshihiro Fukano, Tadashi Uchino
Life of this patent
Estimating the term…
Abstract
A first displacement mechanism disposed on the axially lower side includes a first piston, a piston rod displaceable integrally with the first piston, and a diaphragm connected to the piston rod. A second displacement mechanism disposed on the axially upper side includes a second piston for moving the piston rod to slide along a through-hole. A displacement amount of the first piston and a displacement amount of the second piston are different.
Claims12
A two-way valve comprising:
- a joint section having a first port formed at an end of said joint section and a second port formed at another end thereof, said first and second ports communicating with a fluid passage disposed in said joint section;
- a valve mechanism section having a plurality of displacement mechanisms including a valve plug for opening or closing said fluid passage under the action of a pilot pressure, valve opening degree of said valve plug being variable depending on said plurality of displacement mechanisms;
- and
- a pilot pressure supply section having a plurality of pilot pressure supply mechanisms including pilot ports for supplying the pilot pressure.
1 more element
Dependencies are inferred from the claim text.