VALVE Russian patent published in 2004 - IPC

FIELD: valving.

SUBSTANCE: valve has a ring seat mounted on the solid base. The base is secured to the housing. The housing has the inlet opening and auxiliary opening. The latter has the first seal. The seal embraces the narrow part of a hollow valving member. The wide part of the valving member has diverging part of the insert provided with the second seal. The latter is embraced with the wide part of the valving member. The insert has the through opening which forms the outlet opening of the valve. The valving member is made of bushing and connected with the drive. There is at least one gap between the inner side of the narrow part of the valving member and the outer side of the contracting part of the insert. The sealing member is made for movement in the longitudinal direction.

EFFECT: enhanced stability of operation.

4 cl, 1 dwg