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ES376161A1 - Slide valve for high-viscosity pumps - Google Patents

Slide valve for high-viscosity pumps

Info

Publication number
ES376161A1
ES376161A1 ES376161A ES376161A ES376161A1 ES 376161 A1 ES376161 A1 ES 376161A1 ES 376161 A ES376161 A ES 376161A ES 376161 A ES376161 A ES 376161A ES 376161 A1 ES376161 A1 ES 376161A1
Authority
ES
Spain
Prior art keywords
seal
piston
valve
liquid
compartment
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES376161A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRIEDRICH MILHELM SCHWING
Original Assignee
FRIEDRICH MILHELM SCHWING
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 FRIEDRICH MILHELM SCHWING filed Critical FRIEDRICH MILHELM SCHWING
Publication of ES376161A1 publication Critical patent/ES376161A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
    • F04B7/0208—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the distribution member forming both the inlet and discharge distributor for one single pumping chamber
    • F04B7/0225—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having a slidable movement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
    • Y10T137/4245—Cleaning or steam sterilizing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87571—Multiple inlet with single outlet
    • Y10T137/87676—With flow control
    • Y10T137/87684—Valve in each inlet
    • Y10T137/87692—With common valve operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Sliding Valves (AREA)

Abstract

A slide valve for dense or viscous materials, e.g. concrete, has a slide element connected to a piston rod which extends out of the valve housing through a seal and carries a piston received in a cylinder which is clamped to the housing around the seal by a clamping nut. The cylinder has an outer actuation chamber while an inner annular chamber between the piston and the seal is a flushing compartment connected to a reservoir of liquid through a single duct. As the piston moves toward the seal, the liquid in the flushing compartment is expelled, taking with it any foreign matter which has gotten past the seal, and as the piston movement is reversed this compartment is filled with the liquid via this duct to flush the rod again. The valve element, valve guides, end stops, and sleeves surrounding the piston rods are all easily removable and replaceable to facilitate servicing of the valve.
ES376161A 1969-02-05 1970-02-03 Slide valve for high-viscosity pumps Expired ES376161A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691905706 DE1905706C2 (en) 1969-02-05 1969-02-05 Control slide for thick matter pumps

Publications (1)

Publication Number Publication Date
ES376161A1 true ES376161A1 (en) 1972-03-01

Family

ID=5724418

Family Applications (1)

Application Number Title Priority Date Filing Date
ES376161A Expired ES376161A1 (en) 1969-02-05 1970-02-03 Slide valve for high-viscosity pumps

Country Status (12)

Country Link
US (1) US3640303A (en)
JP (1) JPS4820811B1 (en)
AT (1) AT296033B (en)
BE (1) BE745435A (en)
CH (1) CH503198A (en)
CS (1) CS177027B2 (en)
DE (1) DE1905706C2 (en)
ES (1) ES376161A1 (en)
FR (1) FR2033928A5 (en)
GB (1) GB1229764A (en)
NL (1) NL142763B (en)
PL (1) PL80445B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700800C3 (en) * 1977-01-11 1980-10-16 Herbert 4690 Herne Kuhlmann Control valve for concrete pumps
US4335733A (en) * 1979-09-17 1982-06-22 Richards John A Valve for use in handling abrasive materials and method of wear prevention
DE3006542C2 (en) * 1980-02-21 1985-01-17 Friedrich Wilh. Schwing Gmbh, 4690 Herne Control slide for slurry pumps
DE3528746A1 (en) * 1985-08-10 1987-02-12 Schwing Gmbh F STEERING VALVES FOR DICKER PUMPS
US6086349A (en) * 1992-05-26 2000-07-11 Del Monte; Ernest J. Variable wall concrete molding machine
AU6686796A (en) * 1995-08-02 1997-02-26 Parker-Hannifin Corporation Lockout valve
DE102007004338A1 (en) * 2007-01-29 2008-07-31 Schwing Gmbh Thick material pump, particularly concrete pump, has processing device for sewage water from cleaning of thick material pump, where processing device has collection container, conveyor and processing container

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1317563A (en) * 1919-09-30 And six twenty
GB527640A (en) * 1938-05-14 1940-10-14 Sulzer Ag Improvements in or relating to sealing apparatus for preventing the escape of fluid between a rotating shaft and a wall therough which it passes
US2478811A (en) * 1947-05-19 1949-08-09 W K M Company Inc Power-operated gate valve
US2628872A (en) * 1948-02-05 1953-02-17 American Instr Co Inc Fluid pressure intensifier
US2912214A (en) * 1954-03-01 1959-11-10 Cameron Iron Works Inc Blowout preventer
US3244399A (en) * 1962-12-19 1966-04-05 Cameron Iron Works Inc Gate valve

Also Published As

Publication number Publication date
FR2033928A5 (en) 1970-12-04
CS177027B2 (en) 1977-07-29
BE745435A (en) 1970-07-16
AT296033B (en) 1972-01-25
DE1905706C2 (en) 1970-11-12
PL80445B1 (en) 1975-08-30
JPS4820811B1 (en) 1973-06-23
NL7001483A (en) 1970-08-07
DE1905706B1 (en) 1970-02-26
CH503198A (en) 1971-02-15
NL142763B (en) 1974-07-15
GB1229764A (en) 1971-04-28
US3640303A (en) 1972-02-08

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