EP0821166A3 - Safety device for a pump - Google Patents

Safety device for a pump Download PDF

Info

Publication number
EP0821166A3
EP0821166A3 EP97111419A EP97111419A EP0821166A3 EP 0821166 A3 EP0821166 A3 EP 0821166A3 EP 97111419 A EP97111419 A EP 97111419A EP 97111419 A EP97111419 A EP 97111419A EP 0821166 A3 EP0821166 A3 EP 0821166A3
Authority
EP
European Patent Office
Prior art keywords
pump
safety device
opening
line
relief valve
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.)
Withdrawn
Application number
EP97111419A
Other languages
German (de)
French (fr)
Other versions
EP0821166A2 (en
Inventor
Jürgen Schmidt
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.)
Duerr Dental SE
Original Assignee
Duerr Dental SE
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 Duerr Dental SE filed Critical Duerr Dental SE
Publication of EP0821166A2 publication Critical patent/EP0821166A2/en
Publication of EP0821166A3 publication Critical patent/EP0821166A3/en
Withdrawn legal-status Critical Current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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • 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
    • F04B2201/00—Pump parameters
    • F04B2201/08—Cylinder or housing parameters
    • F04B2201/0802—Vibration
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/05—Pressure after the pump outlet
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/11—Outlet temperature
    • 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
    • F04B2207/00—External parameters
    • F04B2207/70—Warnings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Safety Valves (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

Eine Sicherheitseinrichtung an einer Pumpe weist eine Druckentlastungsleitung (20) auf, welche durch das Öffnen eines Entlastungsventils (16) die Auslaßleitung (22) mit der Einlaßleitung (12) verbinden kann. Hierdurch wird die Pumpe kurzgeschlossen und kann, z.B. bei übermäßiger Erhitzung, verdichtungsfrei zur Abkühlung weiterbetrieben werden. Außerdem kann so ein Entweichen von Gas in die Umgebungsatmosphäre verhindert werden. Das Öffnen des Entlastungsventils (16) wird vorzugsweise durch einen Störfalldetektor (4) veranlaßt, welcher das Überschreiten eines betriebsrelevanten Wertes, wie. z.B. Temperatur, Druck oder Vibrationsniveau erfaßt.

Figure 00000001
A safety device on a pump has a pressure relief line (20) which, by opening a relief valve (16), can connect the outlet line (22) to the inlet line (12). As a result, the pump is short-circuited and can continue to be operated without compression for cooling, for example in the event of excessive heating. This also prevents gas from escaping into the surrounding atmosphere. The opening of the relief valve (16) is preferably caused by an accident detector (4) which detects that an operationally relevant value, such as. eg temperature, pressure or vibration level detected.
Figure 00000001
EP97111419A 1996-07-21 1997-07-06 Safety device for a pump Withdrawn EP0821166A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19629176 1996-07-21
DE1996129176 DE19629176B4 (en) 1996-07-21 1996-07-21 Safety device on a pump

Publications (2)

Publication Number Publication Date
EP0821166A2 EP0821166A2 (en) 1998-01-28
EP0821166A3 true EP0821166A3 (en) 1999-03-17

Family

ID=7800291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111419A Withdrawn EP0821166A3 (en) 1996-07-21 1997-07-06 Safety device for a pump

Country Status (2)

Country Link
EP (1) EP0821166A3 (en)
DE (1) DE19629176B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19829525C2 (en) * 1998-07-02 2003-04-30 Plu Gmbh Temperature reduction in positive displacement pumps with a large recirculation flow
EP1180599A1 (en) 2000-08-16 2002-02-20 Siemens Building Technologies AG Safeguarding device for a pump, which can be used in a fluid transmission
DE102011011202B4 (en) * 2011-02-14 2013-03-14 Tecmara Gmbh Protective device for protecting a pump, in particular for protecting the pump provided in a flow circuit, in particular within a system, from overheating and / or from idling or for protecting the process-technological processing devices provided in the system
CN104245451B (en) * 2012-04-03 2017-03-08 大陆-特韦斯贸易合伙股份公司及两合公司 The pump assembly of motorized motions

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570849A (en) * 1983-11-19 1986-02-18 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co. Kg Fan drive, particularly for cooling installation of vehicles
DE4009641A1 (en) * 1990-03-26 1991-10-02 Daimler Benz Ag DEVICE FOR HYDRAULIC CURRENT CONTROL OR -REGULATION
US5435379A (en) * 1992-08-14 1995-07-25 Texas Instruments Incorporated Method and apparatus for low-temperature semiconductor processing
JPH07334247A (en) * 1994-06-14 1995-12-22 Sumitomo Constr Mach Co Ltd Temperature controller for hydraulic oil
US5563351A (en) * 1994-03-31 1996-10-08 Caterpillar Inc. Method and apparatus for determining pump wear

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028396A1 (en) * 1980-07-26 1982-02-11 Wepuko-Hydraulik GmbH & Co Pumpen- und Kompressorenfabrik, 7418 Metzingen High pressure reciprocating pump - has inlet valves held open to give simple throughput control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570849A (en) * 1983-11-19 1986-02-18 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co. Kg Fan drive, particularly for cooling installation of vehicles
DE4009641A1 (en) * 1990-03-26 1991-10-02 Daimler Benz Ag DEVICE FOR HYDRAULIC CURRENT CONTROL OR -REGULATION
US5435379A (en) * 1992-08-14 1995-07-25 Texas Instruments Incorporated Method and apparatus for low-temperature semiconductor processing
US5563351A (en) * 1994-03-31 1996-10-08 Caterpillar Inc. Method and apparatus for determining pump wear
JPH07334247A (en) * 1994-06-14 1995-12-22 Sumitomo Constr Mach Co Ltd Temperature controller for hydraulic oil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 096, no. 004 30 April 1996 (1996-04-30) *

Also Published As

Publication number Publication date
DE19629176A1 (en) 1998-01-22
EP0821166A2 (en) 1998-01-28
DE19629176B4 (en) 2006-07-06

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