公开(公告)号：WO1997028309A1

公开(公告)日：1997-08-07

申请号：PCT/US1997001611

申请日：1997-01-16

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  SWIETLIK, Francis, X.

IPC: D21F03/02

CPC classification number: D21F3/0218

Abstract: An extended nip press (20) has a shoe (26) driven by two pistons (36, 38) to engage a blanket-supported web (33) against a crown controlled roll (24). Each ENP shoe piston (36, 38) is offset from the line of force application (60) of the crown control piston (48) by a moment arm distance (X, Y). A balancing of the hydraulic pressures in the ENP shoe cylinders and the crown control cylinder is achieved by two equalizer valves (65, 54). Each valve has a slidable spool with faces of a selected cross-sectional area to respond to hydraulic fluid from the various cylinders to retain the correct proportion between the forces applied by the ENP shoe pistons and the crown control piston.

Abstract translation: 延伸的压区压机（20）具有由两个活塞（36,38）驱动的靴（26），以将橡皮布支撑的腹板（33）接合在胎冠控制辊（24）上。 每个ENP鞋活塞（36,38）从冠部控制活塞（48）的力施加线（60）偏移力矩臂距离（X，Y）。 通过两个均衡阀（65,54）实现ENP鞋缸和龙头控制缸之间的液压平衡。 每个阀具有可滑动的卷轴，其具有选定的横截面面积，以响应来自各个气缸的液压流体，以在由ENP鞋活塞和冠控制活塞施加的力之间保持正确的比例。

公开(公告)号：EP0879317B1

公开(公告)日：2001-05-09

申请号：EP97905706.4

申请日：1997-01-16

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： SWIETLIK, Francis, X.

IPC: D21F3/02

CPC classification number: D21F3/0218

公开(公告)号：EP0879317A1

公开(公告)日：1998-11-25

申请号：EP97905706.0

申请日：1997-01-16

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： SWIETLIK, Francis, X.

IPC: D21F3

CPC classification number: D21F3/0218

Abstract: An extended nip press (20) has a shoe (26) driven by two pistons (36, 38) to engage a blanket-supported web (33) against a crown controlled roll (24). Each ENP shoe piston (36, 38) is offset from the line of force application (60) of the crown control piston (48) by a moment arm distance (X, Y). A balancing of the hydraulic pressures in the ENP shoe cylinders and the crown control cylinder is achieved by two equalizer valves (65, 54). Each valve has a slidable spool with faces of a selected cross-sectional area to respond to hydraulic fluid from the various cylinders to retain the correct proportion between the forces applied by the ENP shoe pistons and the crown control piston.