Pressure-reduction device in a quick coupling

Details Pressure-reduction device in a quick coupling Pressure-reduction device in a quick coupling

F - Mech Eng,Light,Heat,Weapons

16

L

284/2

F16L 29/00 (2006.01) F16L 37/23 (2006.01) F16L 37/34 (2006.01)

Patent

CA 1246115

ABSTRACT OF THE DISCLOSURE A pressure-reduction device forms part of a quick coupling in the first and/or second part of said coupling. The part of the coupling concered thus comprises a first valve member equipped with a valve body being ei- ther fixed or capable of linear displacement by means of which a first passageway for the fluid is able to be opened and closed. The device includes a second valve member ar- ranged in said valve body comprising a ball capable of being caused to bear against a seat by means of a spring member arranged in a recess in the valve body. Said ball is raised against the effect of said spring member when the first and second parts of the coupling are connected together. In so doing the ball opens a second passageway for said fluid before actuation of the first passageway takes place, thereby creating a pressure-reduction effect in the part of the coupling concerned thanks to a small quantity of the fluid being diverted from the inside of the part of the coupling via the second passageway. The spring member acts upon the spherical member via a power transmission member. The latter is guided by the wall of the recess and/or by the inside and/or outside of the spring member. The power transmission member is so arranged as to permit the flow of fluid to pass into the recess during the aforementioned process of being diverted.

462188

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