SE9000301L - HYDRAULIC DELIVERY VALVES - Google Patents

HYDRAULIC DELIVERY VALVES

Info

Publication number
SE9000301L
SE9000301L SE9000301A SE9000301A SE9000301L SE 9000301 L SE9000301 L SE 9000301L SE 9000301 A SE9000301 A SE 9000301A SE 9000301 A SE9000301 A SE 9000301A SE 9000301 L SE9000301 L SE 9000301L
Authority
SE
Sweden
Prior art keywords
piston
valve
ducts
pressure
control pressure
Prior art date
Application number
SE9000301A
Other languages
Swedish (sv)
Other versions
SE465523B (en
SE9000301D0 (en
Inventor
A Kvist
Original Assignee
Abb Stal Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abb Stal Ab filed Critical Abb Stal Ab
Priority to SE9000301A priority Critical patent/SE465523B/en
Publication of SE9000301D0 publication Critical patent/SE9000301D0/en
Priority to SE9001799A priority patent/SE465478B/en
Priority to FI910409A priority patent/FI101997B/en
Publication of SE9000301L publication Critical patent/SE9000301L/en
Publication of SE465523B publication Critical patent/SE465523B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/20—Checking operation of shut-down devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Multiple-Way Valves (AREA)

Abstract

A hydraulic valve constructed as a multi-way valve with pressure medium feed through the valve in two parallel ducts. Closing and opening of ports 1, 2, 3, 4, T to the various ducts is performed by a combined piston/slide 6. The piston 6 is provided with cams 7, 8, 9 which, in interaction with throttling edges A, B, C, D, E inside the valve space, where the piston 6 runs, open or close the ducts and connections to the valve. Operation of the piston 6 is brought about by applying a control pressure at one end of the piston, where the piston is provided with a pressure area. The control pressure can be produced in any way. At the opposite end of the piston, the piston bears against a valve seat F when control pressure is applied to the piston. This valve seat seals effectively between a duct inside the valve seat and a port outside. At the same end of the piston, there is also a return spring 10 which returns the piston to the starting position when control pressure is not applied to the piston. The object of the valve is to produce a valve in which two ducts through the valve are fed in parallel with pressure medium in separate ducts with the same pressure in the two ducts and in which one of the outputs from the two ducts of the valve retains the same pressure medium pressure even when the position of the valve is changed without any pressure drop occurring during the change. This is achieved by means of a change procedure which is accurately regulated in terms of position. Fig. 1. <IMAGE>
SE9000301A 1990-01-29 1990-01-29 VALVE SYSTEM CONNECTED IN A HYDRAULIC SAFETY SYSTEM SE465523B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9000301A SE465523B (en) 1990-01-29 1990-01-29 VALVE SYSTEM CONNECTED IN A HYDRAULIC SAFETY SYSTEM
SE9001799A SE465478B (en) 1990-01-29 1990-05-18 Primary release valve
FI910409A FI101997B (en) 1990-01-29 1991-01-28 Hydraulic release valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000301A SE465523B (en) 1990-01-29 1990-01-29 VALVE SYSTEM CONNECTED IN A HYDRAULIC SAFETY SYSTEM

Publications (3)

Publication Number Publication Date
SE9000301D0 SE9000301D0 (en) 1990-01-29
SE9000301L true SE9000301L (en) 1991-07-30
SE465523B SE465523B (en) 1991-09-23

Family

ID=20378382

Family Applications (2)

Application Number Title Priority Date Filing Date
SE9000301A SE465523B (en) 1990-01-29 1990-01-29 VALVE SYSTEM CONNECTED IN A HYDRAULIC SAFETY SYSTEM
SE9001799A SE465478B (en) 1990-01-29 1990-05-18 Primary release valve

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE9001799A SE465478B (en) 1990-01-29 1990-05-18 Primary release valve

Country Status (2)

Country Link
FI (1) FI101997B (en)
SE (2) SE465523B (en)

Also Published As

Publication number Publication date
SE465523B (en) 1991-09-23
FI101997B1 (en) 1998-09-30
FI910409A0 (en) 1991-01-28
SE9000301D0 (en) 1990-01-29
SE9001799D0 (en) 1990-05-18
FI910409A (en) 1991-07-30
FI101997B (en) 1998-09-30
SE465478B (en) 1991-09-16
SE9001799L (en) 1991-07-30

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