PISTON VALVE
    2.
    发明专利

    公开(公告)号:JPH10109053A

    公开(公告)日:1998-04-28

    申请号:JP12982797

    申请日:1997-05-20

    Abstract: PROBLEM TO BE SOLVED: To prolong the service life of an electrically insulated piston valve by making the potential of a control electrode equal to the potential of the liquid in a liquid outlet. SOLUTION: The control electrode 2 is arranged on a prolonged part 11 of a cylinder 5. The metallic prolonged part 11 is formed to conform with the shape of the control electrode 2. Then, the control electrode 2 is electrically connected with the liquid 8a at the outlet 9. In the case that the prolonged part 11 is not made of metal but made of an electrically insulated material e.g. glass, the control electrode 2 is placed to be electrically connected between the liquid 8a and the electrode 2 and is welded. The shape of the electrode has at least about 3mm radius of curvature. Thus, the control electrode 2 is always at the potential of the outlet side liquid 8a and lowers the electric field intensity on the valve.

    4.
    发明专利
    未知

    公开(公告)号:DE19960880A1

    公开(公告)日:2001-06-21

    申请号:DE19960880

    申请日:1999-12-17

    Abstract: The invention relates to a measuring device (1) for detecting the thickness of a layer (20) which is applied to a component (100). The thickness is detected in a touchless and nondestructive manner and irrespective of the material the layer (20) is made of. An electromagnetic radiation source (2) is provided which emits radiation in the infrared area. The radiation source (2) is embodied as a solid body laser and is connected to a sensor unit (8) by means of at least one optical waveguide (4). The layer (20) can be scanned with the infrared radiation using the sensor unit. The heat radiation which is emitted by the layer (20) is detected by means of a detector (5) which can be integrated into the sensor unit (8). The thickness of the layer (20) is detected in an evaluation unit (11) according to the measuring signals. Comparative values are stored in said evaluation unit.

    6.
    发明专利
    未知

    公开(公告)号:DE59709420D1

    公开(公告)日:2003-04-10

    申请号:DE59709420

    申请日:1997-05-16

    Abstract: The piston valve has a cylinder (5) containing a linearly displaced piston (1), with electrical isolation of the fluid inlet (12) from the fluid outlet (9), so that the fluid (8) can be held at earth potential at the inlet while the fluid (8.1) at the outlet is at a HV potential. The cylinder has an extension (11) associated with a control electrode (2), held at the same potential as the fluid at the valve outlet. Both the cylinder and the extension can be made of glass or ceramics.

    7.
    发明专利
    未知

    公开(公告)号:DE19620577A1

    公开(公告)日:1997-11-27

    申请号:DE19620577

    申请日:1996-05-22

    Abstract: The piston valve has a cylinder (5) containing a linearly displaced piston (1), with electrical isolation of the fluid inlet (12) from the fluid outlet (9), so that the fluid (8) can be held at earth potential at the inlet while the fluid (8.1) at the outlet is at a HV potential. The cylinder has an extension (11) associated with a control electrode (2), held at the same potential as the fluid at the valve outlet. Both the cylinder and the extension can be made of glass or ceramics.

    8.
    发明专利
    未知

    公开(公告)号:AT233605T

    公开(公告)日:2003-03-15

    申请号:AT97107993

    申请日:1997-05-16

    Abstract: The piston valve has a cylinder (5) containing a linearly displaced piston (1), with electrical isolation of the fluid inlet (12) from the fluid outlet (9), so that the fluid (8) can be held at earth potential at the inlet while the fluid (8.1) at the outlet is at a HV potential. The cylinder has an extension (11) associated with a control electrode (2), held at the same potential as the fluid at the valve outlet. Both the cylinder and the extension can be made of glass or ceramics.

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