WO2003081078A1 - Dispositif a zone d'action et compensation de pression - Google Patents

Dispositif a zone d'action et compensation de pression Download PDF

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Publication number
WO2003081078A1
WO2003081078A1 PCT/DE2003/000792 DE0300792W WO03081078A1 WO 2003081078 A1 WO2003081078 A1 WO 2003081078A1 DE 0300792 W DE0300792 W DE 0300792W WO 03081078 A1 WO03081078 A1 WO 03081078A1
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WO
WIPO (PCT)
Prior art keywords
pressure
space
temperature
memory metal
action space
Prior art date
Application number
PCT/DE2003/000792
Other languages
German (de)
English (en)
Inventor
Wolfgang Gentzkow
Stefan Kautz
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2003081078A1 publication Critical patent/WO2003081078A1/fr

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Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/52—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics in case of change of temperature
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/52—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics in case of change of temperature
    • F16F9/523—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics in case of change of temperature with coil or spiral of bimetallic elements being used to change flow cross-section

Definitions

  • the invention relates to a device with an action space, the means for temperature-dependent pressure compensation are assigned.
  • Pressure can be built up or reduced using a valve, by letting the affected medium (gases or liquids) escape from the container, depending on the temperature, or by increasing the pressure using an external device.
  • a temperature or pressure sensor is usually required, which the pressure control system needs provided information.
  • the internal pressure is reduced or increased via a valve until the setpoint is reached.
  • Electrically operated systems such as spindle pumps are primarily used for pressure build-up. The corresponding outlay on equipment is relatively high.
  • the object of the present invention is to provide a device with an action space in which a temperature-dependent pressure compensation can be achieved with relatively simple means.
  • pressure-equalizing means for changing the volume of the action space should be provided with an adjustable wall part of the action space, an element made of a memory metal acting on the wall part for its temperature-dependent adjustment.
  • the device according to the invention is advantageously characterized by a particularly simple structure with few components.
  • the inventive step lies in the compensation of the temperature-sensitive media volume of an action space with the help of at least one memory metal element.
  • An action space is understood to mean a volume that is filled with a particularly gaseous or possibly also liquid medium and in which a pressure at a predetermined pressure level, generally above 1 bar, preferably above 10 bar, is at least approximately constant (to on included deviations by a maximum of +/- 10%).
  • Corresponding action spaces are to be regarded as parts of any facility or system.
  • the device can preferably also contain several adjustable wall parts.
  • the at least one element made of a memory metal then attacks these wall parts.
  • the action space is advantageously separated from the compensation space by the at least one wall part, the total volume of the action space and compensation space remaining constant even when the at least one wall part is adjusted.
  • the at least one element made of the memory metal can engage on the side of the at least one adjustable wall part facing the compensation space or on the side facing the action space.
  • the facility is characterized by a particularly simple structure.
  • the at least one element made of the memory metal is advantageously designed as a spring element, which may or may be able to counteract one or more counter-springs without memory properties.
  • Spring elements made of memory metal are characterized by their simple structure and sufficient power. A good adjustability of the force effect is to be ensured with the at least one counter spring.
  • the counter spring can advantageously engage the opposite side of the at least one adjustable wall part.
  • FIGS. 1 to 8 schematically illustrate preferred exemplary embodiments of the devices according to the invention.
  • Figures 1 and 2 show in diagrams the temperature-dependent change in shape of memory metal elements, as are suitable for the action space of a facility, and
  • FIGS 3 to 8 different training options for devices with such memory metal elements at three different temperature levels. Corresponding parts are given the same names in the figures.
  • the proportion of this at least one further component is less than 5 atomic%.
  • it can also vary more.
  • Other possible alloy partners of different binary memories -Metals, including for Ni-Mn alloys, are mentioned in * Transactions of the ASME ", Vol. 121, Jan. 1999, pages 98 to 101.
  • the internal pressure p2 in the action space 2 can be over 1 bar, preferably higher than 10 bar.
  • a target pressure p2 of 100 bar which is to be kept at least approximately constant (apart from slight deviations), is assumed in each case.
  • the comparison pressure pl (T) which is dependent on the specified temperature changes, is given in a comparison volume which would occur in the individual rooms if the inventive measures were missing.
  • the comparison volume does not represent the total volume of the Action area and the compensation area (including any assigned sub-areas).
  • the at least one conventional return spring F ⁇ presses the sliding partition plate 4 serving as a wall part upwards in a gas-tight manner.
  • the ambient temperature now rises to 20 ° C (cf. middle part of the figure)
  • the general pressure increase on the one hand causes the movable separating plate 4 to move downward.
  • the spring element F1 converts into the firmer * high-temperature form * (cf. also FIG. 1) and presses the separating plate 4 against the conventional spring F ⁇ into the starting position.
  • the ambient temperature continues to rise to 60 ° C (see lower part of the figure), see above there would be - as indicated in the left part of FIG. 3 for comparison purposes - an increase in the pressure pl (T) to 120 bar in all container parts 2, 2 ⁇ and 3.
  • the metal metal spring element F2 changes 1 into the “high-temperature mold” and develops a pressure that ensures that the separating plate 4 is pressed even further down.
  • the two memory metal spring elements F1 and F2 convert to their softer phase states one after the other and the conventional spring F ⁇ can push the separating plate 4 back into the upper position.
  • This arrangement thus enables the temperature-sensitive media volume to be compensated by metal or metal elements between -30 ° and + 60 ° C. and a pressure p2 of at least approximately 100 bar in the action space 2 to be maintained.
  • At least one further such spring can be provided, which is arranged parallel to the one counter spring.
  • the memory metal spring element F3 converts into the low-temperature phase (cf. also FIG. 2) and pulls the displaceable separating plate 4 upwards in a gas-tight manner.
  • the ambient temperature now rises to 20 ° C. (cf. middle part of the figure)
  • the general pressure increase causes the movable separating plate 4 to move downward.
  • the spring element F3 partially converts to the firmer * high-temperature mold * (cf. also FIG. 2) and presses the separating plate 4 into the starting position.
  • the spring element F3 continuously converts to the * high-temperature form * and in the process develops a tensile stress which ensures that the separating plate 4 is pulled upward even further. It poses there is a reduction in pressure to, for example, 100 bar in action room 2. If the ambient temperature gradually drops to -30 ° C (see lower part of the figure), the memory metal spring converts to its martensitic low-temperature state and the partition plate is pushed back into the lower position. This arrangement also makes it possible for the temperature-sensitive media volume to be compensated between -30 ° and + 60 ° C by a single memory metal element and for the pressure p2 to be maintained at 100 bar in action space 2.
  • the pressure p2 in the lower part of the vessel, which forms the action space 2 is increased, for example, to 100 bar.
  • the general pressure increase causes the movable separating plate 4 to move upwards.
  • the spring element F3 partially converts into the firmer * high-temperature mold * (see also FIG. 2) and pulls the separating plate 4 into it Starting position back. If the ambient temperature now rises further to 60 ° C (see upper part of the figure), the pressure pl (T) would increase to 120 bar in all container spaces.
  • the lower sub-space forms the action space 2 while the upper sub-space contains the spring element F3 as a compensation space 3.
  • the ambient temperature now rises again to 20 ° C. (cf. middle part of the figure)
  • the general pressure increase causes the movable separating plate 4 to move upward.
  • the spring element F3 partially converts to the firmer * high-temperature mold * (see also FIG. 2) and pulls the separating plate 4 back into the starting position. If the ambient temperature now increases further to 60 ° C (cf. upper part of the figure), this would normally result in an increase in the pressure pl (T) to 120 bar in all container spaces.
  • the spring element F3 continuously converts further into the * high-temperature form * and in the process develops a tensile stress which ensures that the separating plate 4 is pulled further up.
  • a reduction in pressure p2 to, for example, 100 bar occurs in action room 2.
  • the lack of a larger compensation volume ensures a significant increase in the pressure p3 on the side of the memory metal spring element F3 in the subspace 3, which must generate a correspondingly greater force.
  • the ambient temperature gradually drops again to -30 ° C (cf. lower part of the figure)
  • the memory metal spring element F3 converts to its martensitic low temperature state and the separating plate 4 is pushed back into the lower position. Accordingly, this arrangement also enables the temperature-sensitive media volume to be compensated between -30 ° and + 60 ° C. by means of a single memory metal element, and a pressure p2 of 100 bar in action space 2 is maintained.
  • the pressure p2 in the lower part of the vessel, the action space 2 is reduced, for example, to the set pressure p2 of 100 bar.
  • the pressure p3 in the upper part of the container increases to 160 bar. If the ambient temperature now rises further to 60 ° C (cf. upper part of the figure), the spring element F1 converts completely into the * high-temperature form * (cf. also FIG. 1) and pulls the separating plate 4 into the upper end position.
  • the spring element Fl has to exert very high forces due to the small compensation volume and the strong counter pressure. This situation can be mitigated if, as in the previously described variants, compensation volumes are made available.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Temperature-Responsive Valves (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne une dispositif présentant une zone d'action (2) dans laquelle s'effectue une compensation de pression en fonction de la température. A cet effet, ledit dispositif présente des moyens servant à faire varier le volume de la zone d'action (2), associés à au moins une partie paroi mobile (4) de la zone d'action (2). Au moins un élément (F1, F2) constitué d'un métal à mémoire de forme vient en contact avec ladite partie paroi (4) pour déplacer cette dernière en fonction de la température.
PCT/DE2003/000792 2002-03-26 2003-03-12 Dispositif a zone d'action et compensation de pression WO2003081078A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10213747 2002-03-26
DE10213747.1 2002-03-26

Publications (1)

Publication Number Publication Date
WO2003081078A1 true WO2003081078A1 (fr) 2003-10-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/000792 WO2003081078A1 (fr) 2002-03-26 2003-03-12 Dispositif a zone d'action et compensation de pression

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DE (1) DE10311308B4 (fr)
WO (1) WO2003081078A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006029261B4 (de) * 2006-06-26 2008-05-29 Siemens Ag Hochspannungserzeuger mit Ausdehnungseinheit
DE102013012752B4 (de) 2013-07-31 2019-12-24 Audi Ag Hydrauliksystem für ein Automatikgetriebe eines Kraftfahrzeugs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142048A (ja) * 1982-02-15 1983-08-23 Yamaha Motor Co Ltd ダンパ−装置
JPS59162262A (ja) * 1983-03-08 1984-09-13 Tohoku Metal Ind Ltd 二方向形状記憶効果を有するバネの製造方法
US4513953A (en) * 1983-04-14 1985-04-30 Gas Spring Company, Division Of Fichtel & Sachs Industries, Inc. Gas spring with extension force controlled as a function of temperature
FR2594921A1 (fr) * 1986-02-25 1987-08-28 Airax Sa Ressort a gaz
JPH08312705A (ja) * 1995-05-17 1996-11-26 Mitsubishi Cable Ind Ltd ２方向性形状記憶合金コイルバネ素子

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19519832B4 (de) * 1995-05-31 2004-04-22 Robert Bosch Gmbh Hydrospeicher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142048A (ja) * 1982-02-15 1983-08-23 Yamaha Motor Co Ltd ダンパ−装置
JPS59162262A (ja) * 1983-03-08 1984-09-13 Tohoku Metal Ind Ltd 二方向形状記憶効果を有するバネの製造方法
US4513953A (en) * 1983-04-14 1985-04-30 Gas Spring Company, Division Of Fichtel & Sachs Industries, Inc. Gas spring with extension force controlled as a function of temperature
FR2594921A1 (fr) * 1986-02-25 1987-08-28 Airax Sa Ressort a gaz
JPH08312705A (ja) * 1995-05-17 1996-11-26 Mitsubishi Cable Ind Ltd ２方向性形状記憶合金コイルバネ素子

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 261 (M - 257) 19 November 1983 (1983-11-19) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 012 (C - 261) 18 January 1985 (1985-01-18) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03 31 March 1997 (1997-03-31) *

Also Published As

Publication number Publication date
DE10311308A1 (de) 2003-10-23
DE10311308B4 (de) 2004-04-15

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