Flow control valve for fluidized material
First Claim
1. A flow control valve for fluidized material comprising:
- a valve housing having first and second retention pins and a valve chamber with a valve seat, said valve seat being arranged in a conjugated socket in said valve housing;
a valve plug having a flow passage, said valve plug being arranged inside said valve chamber in front of said valve seat so as to be rotatable about an axis of rotation for controlling a flow through said flow control valve and said valve plug comprises a cylindrical plug biasing surface; and
at least one cantilever spring arranged in a clearance space opposite to said valve seat, said cantilever spring being fixed to said valve housing and having an end portion in contact with said cylindrical plug biasing surface so as to bias said valve plug against said valve seat perpendicularly to said axis of rotation for achieving a sealing contact between said valve seat and said valve plug, wherein said first and second retention pins are configured to secure said valve plug when said at least one cantilever spring is removed.
1 Assignment
0 Petitions
Accused Products
Abstract
A flow control valve for fluidized material comprises a valve housing having a valve chamber with a valve seat and a valve plug having a flow passage, the valve plug being arranged inside the valve chamber in front of the valve seat (30) so as to be rotatable about an axis of rotation for controlling a flow through the flow control valve. It further comprises spring means biasing the valve plug against the valve seat perpendicularly to the axis of rotation, for achieving a sealing contact between the valve seat and the valve plug. According to an important aspect of the invention, the spring means comprises at least one cantilever spring (40) arranged in a clearance space opposite to the valve seat (30) so as to bias the valve plug against the valve seat.
-
Citations
26 Claims
-
1. A flow control valve for fluidized material comprising:
-
a valve housing having first and second retention pins and a valve chamber with a valve seat, said valve seat being arranged in a conjugated socket in said valve housing; a valve plug having a flow passage, said valve plug being arranged inside said valve chamber in front of said valve seat so as to be rotatable about an axis of rotation for controlling a flow through said flow control valve and said valve plug comprises a cylindrical plug biasing surface; and at least one cantilever spring arranged in a clearance space opposite to said valve seat, said cantilever spring being fixed to said valve housing and having an end portion in contact with said cylindrical plug biasing surface so as to bias said valve plug against said valve seat perpendicularly to said axis of rotation for achieving a sealing contact between said valve seat and said valve plug, wherein said first and second retention pins are configured to secure said valve plug when said at least one cantilever spring is removed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A flow control valve for fluidized material comprising:
-
a valve housing having first and second retention pins and a valve chamber with a valve seat, said valve seat being arranged in a conjugated socket in said valve housing; a valve plug having a flow passage, said valve plug being arranged inside said valve chamber in front of said valve seat so as to be rotatable about an axis of rotation for controlling a flow through said flow control valve and said valve plug comprises a cylindrical plug biasing surface; at least one cantilever spring arranged in a clearance space opposite to said valve seat, said cantilever spring being fixed to said valve housing and having an end portion in contact with said cylindrical plug biasing surface so as to bias said valve plug against said valve seat perpendicularly to said axis of rotation for achieving a sealing contact between said valve seat and said valve plug, wherein said first and second retention pins are configured to secure said valve plug when said at least one cantilever spring is removed; and an adjustment device supporting said second end portion of said cantilever spring, said adjustment device allowing the axial position of said cantilever spring with respect to said valve plug to be set. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A flow control valve for fluidized material comprising:
-
a valve housing having first and second retention pins and a valve chamber with a valve seat, said valve seat being arranged in a conjugated socket in said valve housing; a valve plug having a flow passage, said valve plug being arranged inside said valve chamber in front of said valve seat so as to be rotatable about an axis of rotation for controlling a flow through said flow control valve and said valve plug comprises a cylindrical plug biasing surface; and at least two pairs of cantilever springs wherein at least one cantilever spring of said two pairs is arranged in a clearance space opposite to said valve seat, said cantilever spring being fixed to said valve housing and having an end portion in contact with said cylindrical plug biasing surface so as to bias said valve plug against said valve seat perpendicularly to said axis of rotation for achieving a sealing contact between said valve seat and said valve plug, wherein two pairs of cantilever springs are arranged in corresponding clearance spaces tangentially with respect to said valve plug and on opposing sides of a flow channel through said valve housing, wherein said first and second retention pins are configured to secure said valve plug when said at least one cantilever spring is removed. - View Dependent Claims (23, 24, 25, 26)
-
Specification