• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a coolable sensor (1), for example a pressure sensor, having a substantially rotationally symmetrical sensor housing (2) accommodating a preferably piezoelectric transducer and aligned on the rear side (7) parallel to the axis (1 ') of the sensor (1) - And drain lines (3, 4) for a cooling medium, wherein on the sensor housing (2) engagement surfaces (5) are formed for a mounting tool. According to the invention, the inflow and outflow lines (3, 4) for the cooling medium are at least partially outside a circumferential surface (6) of the sensor housing receiving the engagement surfaces (5) and within a maximum outside diameter of the sensor housing, whereby compact dimensions are achieved with sufficient flow cross sections. The invention also relates to an assembly tool for mounting or dismounting a coolable sensor.
    公开号:CH707802B1
    申请号:CH00216/14
    申请日:2014-02-18
    公开日:2017-09-15
    发明作者:Baumgartner Martin；Michelitsch Wolfgang；Steinburgger Franz
    申请人:Piezocryst Advanced Sensorics；
    IPC主号:
    专利说明:

    Description: The invention relates to a coolable sensor, for example a pressure sensor, having a substantially rotationally symmetrical sensor housing, which accommodates a preferably piezoelectric transducer and has inlet and outlet lines aligned parallel to the axis of the sensor for a cooling medium on the rear side, with attack surfaces on the sensor housing are designed for an assembly tool.
    Such sensors are preferably used for pressure measurement in the field of internal combustion engines and gas turbines at high operating temperatures. In order to ensure the function of such sensors even at high temperatures, they must be cooled, usually only very small mounting mass are available at the measuring locations and therefore preferred cooled pressure sensors with a small outer diameter. It is therefore difficult to attach to the back of the sensor body necessary for the cooling water supply and drain lines and connection nipples as the electrical connection cable of the sensor.
    The invention also relates to coolable force, strain, torque and acceleration sensors that are used at high operating temperatures.
    In this context, JP 56 104 229 A a pressure sensor has become known, which has on the back of the sensor body attack surfaces for a mounting tool in the form of a hex nut, wherein the connection nipple for the cooling medium are arranged within the contour of the attack surfaces.
    Furthermore, from DE 20 2010 003 133 U1 a cooled with cooling water pressure sensor is known, the inlet and outlet lines are also disposed within the peripheral surface of the hex nut. The housing inner contour of the sensor is here oval in order to produce better flow conditions from the inflow side to the outflow side together with a rotationally symmetrical sensor body in pressure sensors with a small outer diameter.
    In such pressure sensors, for example, the size M8, conventional standard pipe socket wrench are used for mounting, usually mounting holes with a bore diameter> 14 mm are required. For tighter mounting holes up to 12 mm in diameter, a so-called pin wrench is used, which has two dowel pins on the front, which engage in the pressure sensor. When installing and removing cooled pressure sensors with a pin wrench, many sensors will be destroyed if the pin wrench is not attached correctly, damaging the coolant supply and discharge lines. Furthermore, the dowel pins of the pin wrench can be bent or broken off.
    The object of the invention is to improve a coolable sensor of the type described above such that in a structurally simple way enough space for the required inflow and outflow lines for the cooling medium and the attack surfaces of the assembly tool is provided. Furthermore, a robust assembly tool for such coolable sensors is to be developed.
    This object is achieved according to the invention in that the inlet and outlet lines for the cooling medium are at least partially outside a peripheral surface of the sensor housing receiving the engagement surfaces for the mounting tool and within a maximum outside diameter of the sensor housing. [0009] An assembly tool according to the invention for such a coolable Sensor is characterized in that the assembly tool is formed on at least one end as a tubular socket wrench whose inner contour has mating surfaces for receiving the engagement surfaces of the sensor housing, wherein in the inner contour recesses for receiving the inlet and outlet lines are provided for the cooling medium.
    According to the invention, designed as a socket wrench end of the mounting tool on an outer diameter which is smaller than / equal to the maximum outer diameter of the sensor housing. Thus, even with small mounting holes instead of a pin wrench a socket wrench can be used, which is much more robust and can be used with greater certainty.
    The invention will be explained in more detail below with reference to exemplary embodiments. Show it:
    1 shows a novel, coolable pressure sensor in a three-dimensional representation;
    FIG. 2 shows an enlarged sectional view along the line II-II of the pressure sensor according to FIG. 1; FIG.
    FIG. 3 shows a mounting tool for mounting or dismounting the coolable pressure sensor according to FIG. 1 in a three-dimensional representation; FIG.
    FIG. 4 shows the assembly tool according to FIG. 3 in a sectional illustration; FIG.
    5 shows an enlarged detail of the assembly tool according to FIG. 3 in a three-dimensional representation; and FIG. 6 shows a front view of the detail illustration according to FIG. 5
    权利要求:
    Claims (8)
    [1]
    The pressure sensor 1 shown in FIGS. 1 and 2 for flooded-temperature applications in ranges up to 1000 ° C. has an essentially rotationally symmetrical sensor housing 2 which accommodates a piezoelectric transducer (not shown here). On the rear side 7, or on the side facing away from the membrane side 8 of the sensor, parallel to the axis V of the pressure sensor 1 aligned supply and discharge lines 3, 4 together with connection nipple 9 for a cooling medium, for example cooling water, respectively. In this area are also arranged in the form of a hexagon attack surfaces 5 for a mounting tool 10 (see FIG. 3) and the centrally arranged electrical connection cable 19 of the sensor. The inlet and outlet lines 3, 4 for the cooling medium are at least partially outside of the attack surfaces 5 receiving peripheral surface 6 of the sensor housing and within a maximum outside diameter D of the sensor body 2. D.h. the outer contour of the hexagon nut is interrupted by the inlet and outlet lines 3, 4 for the cooling medium. This preferred embodiment creates space for a robust assembly tool whose outer diameter does not project beyond the maximum outer diameter D of the sensor housing 2. As a result, use is also possible in mounting holes with a diameter <14 mm or <12 mm. Preferably, the inlet and outlet lines 3, 4 are arranged for the cooling medium in opposite engagement surfaces 5 and protrude beyond these at least partially. However, it is also possible to arrange the inflow and outflow lines 3, 4 for the cooling medium in opposing corner regions of intersecting engagement surfaces 5. The inventive assembly tool for mounting or dismounting a coolable sensor, preferably a pressure sensor 1, is exemplified in Figs. 3 to Fig. 6. The assembly tool 10 is formed at one end as a tubular socket wrench 11 with a closed circumference, the inner contour 12 has mating surfaces 13 for receiving the engagement surfaces 5 of the sensor housing 2. In the inner contour 12 circular recesses 14 for receiving the inlet and outlet lines 3, 4 are provided for the cooling medium in cross-section. The executed as a socket wrench 11 end can thereby have an outer diameter which is smaller than / equal to the maximum outer diameter D of the sensor housing 2, whereby the use in mounting holes with diameters less than or equal to 12 mm is possible. The assembly tool 10 has a shaft portion 15 which connects to the front socket driver 11 or (see Fig. 4, weld 18) is welded thereto. In the shaft portion 15 of the mounting tool 10 side openings 16 are provided, in which the connection nipple 9 together with the (not shown here) plugged cooling hoses place. The slot-shaped recesses 17 at the end of the mounting tool 10 serve to laterally lead out the cooling hoses and the electrical connection cable 19 prior to placement, e.g. a socket together with torque wrench on the end hexagon of the assembly tool 10. Claims
    1. Coolable sensor (1), for example a pressure sensor, with a substantially rotationally symmetrical sensor housing (2) receiving a preferably piezoelectric transducer and on the back (7) parallel to the axis (11) of the sensor (1) aligned inlet and outlet lines (3, 4) for a cooling medium, wherein the sensor housing (2) attack surfaces (5) for an assembly tool (10) are formed, characterized in that the inlet and outlet lines (3, 4) for the cooling medium at least partially outside of one the engagement surfaces (5) receiving peripheral surface (6) of the sensor housing (2) and within a maximum outer diameter (D) of the sensor housing are.
    [2]
    2. Sensor (1) according to claim 1, characterized in that the inflow and outflow lines (3, 4) are arranged for the cooling medium in opposite engagement surfaces (5) and project beyond this at least partially.
    [3]
    3. Sensor (1) according to claim 1, characterized in that the inflow and outflow lines (3, 4) are arranged for the cooling medium in opposite corners of intersecting attack surfaces (5).
    [4]
    4. Sensor (1) according to one of claims 1 to 3, characterized in that the engagement surfaces (5) for the assembly tool (10) are arranged in the form of a hexagon nut whose outer contour through the inlet and outlet lines (3, 4) is interrupted for the cooling medium.
    [5]
    5. assembly tool (10) for mounting or dismounting a coolable sensor (1), for example pressure sensor, according to claim 1, characterized in that the assembly tool (10) is formed at least one end as a tubular socket wrench (11) whose inner contour ( 12) fitting surfaces (13) for receiving the engagement surfaces (5) of the sensor housing (2), wherein in the inner contour (12) recesses (14) for receiving the inlet and outlet lines (3, 4) are provided for the cooling medium.
    [6]
    6. assembly tool (10) according to claim 5, characterized in that the socket (11) running end has an outer diameter which is smaller than / equal to the maximum outer diameter (D) of the sensor housing (2).
    [7]
    7. assembly tool (10) according to claim 5 or 6, characterized in that the assembly tool (10) has a shaft portion (15) adjoins the socket wrench (11) or is welded thereto.
    [8]
    8. Assembly tool (10) according to claim 7, characterized in that in the shaft region (15) of the mounting tool (10) lateral openings (16) or recesses (17) are provided.
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    同族专利:
    公开号 | 公开日
    AT514083B1|2014-10-15|
    CH707802A2|2014-09-30|
    DE102014102136A1|2014-10-02|
    AT514083A4|2014-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB430943A|1934-07-13|1935-06-27|Edwin Mathieson Dodds|Improved apparatus for indicating the variation in cyclic phenomena of a quantity with respect to time|
    US2266315A|1940-06-20|1941-12-16|Gen Motors Corp|Pressure indicator|
    US2738677A|1952-05-27|1956-03-20|Research Corp|Pressure indicator|
    US2896138A|1955-08-30|1959-07-21|Photocon Res Products|Pressure indicator|
    US2976466A|1958-09-08|1961-03-21|Carl E Grinstead|Shielding device|
    CH408453A|1963-08-10|1966-02-28|Kistler Instrumente Ag|Piezoelectric pressure measuring device|
    JPS56104229A|1980-01-23|1981-08-19|Nissan Motor Co Ltd|Cooler for pressure indicator|
    CH700534B1|2009-03-11|2013-03-28|Kistler Holding Ag|Cooled sensor.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50209/2013A|AT514083B1|2013-03-27|2013-03-27|Coolable sensor|
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