SE9900966D0 - Pressure sensor for a liquid pressure medium - Google Patents

Pressure sensor for a liquid pressure medium

Info

Publication number
SE9900966D0
SE9900966D0 SE9900966A SE9900966A SE9900966D0 SE 9900966 D0 SE9900966 D0 SE 9900966D0 SE 9900966 A SE9900966 A SE 9900966A SE 9900966 A SE9900966 A SE 9900966A SE 9900966 D0 SE9900966 D0 SE 9900966D0
Authority
SE
Sweden
Prior art keywords
pressure
pressure sensor
measurement cell
liquid
medium
Prior art date
Application number
SE9900966A
Other languages
Swedish (sv)
Other versions
SE521871C2 (en
SE9900966L (en
Original Assignee
Robert Seuffer Gmbh & Co
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
Priority claimed from DE19861041A external-priority patent/DE19861041C2/en
Priority claimed from DE1998112296 external-priority patent/DE19812296C1/en
Application filed by Robert Seuffer Gmbh & Co filed Critical Robert Seuffer Gmbh & Co
Publication of SE9900966D0 publication Critical patent/SE9900966D0/en
Publication of SE9900966L publication Critical patent/SE9900966L/en
Publication of SE521871C2 publication Critical patent/SE521871C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0007—Fluidic connecting means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
    • G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The pressure sensor has a measurement cell (12) in a housing into which the hydraulic medium to be monitored is introduced via a channel (13). A blocking device (14,15) in the channel is open in normal mode and closes automatically in the event of a leak near the measurement cell. The blocking device is closed by a pressure difference between the region in which the monitored pressure is active and the region of the measurement cell.
SE9900966A 1998-03-20 1999-03-17 Pressure sensor for liquid pressure medium, e.g. for hydraulic fluid in brake line of motor vehicle SE521871C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19861041A DE19861041C2 (en) 1998-03-20 1998-03-20 Pressure sensor for a liquid pressure medium
DE1998112296 DE19812296C1 (en) 1998-03-20 1998-03-20 Apparatus for tapping high frequency electrical currents from a cylindrical housing

Publications (3)

Publication Number Publication Date
SE9900966D0 true SE9900966D0 (en) 1999-03-17
SE9900966L SE9900966L (en) 1999-09-21
SE521871C2 SE521871C2 (en) 2003-12-16

Family

ID=26044806

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9900966A SE521871C2 (en) 1998-03-20 1999-03-17 Pressure sensor for liquid pressure medium, e.g. for hydraulic fluid in brake line of motor vehicle

Country Status (1)

Country Link
SE (1) SE521871C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112556941A (en) * 2020-11-30 2021-03-26 奇瑞商用车（安徽）有限公司 Air tightness detection device and detection method for clutch main cylinder assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112556941A (en) * 2020-11-30 2021-03-26 奇瑞商用车（安徽）有限公司 Air tightness detection device and detection method for clutch main cylinder assembly

Also Published As

Publication number Publication date
SE521871C2 (en) 2003-12-16
SE9900966L (en) 1999-09-21

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Legal Events

Date Code Title Description
NUG Patent has lapsed