1
Randolf Mock, Andreas Kappel, Hans Meixner: Apparatus for apportioning and atomizing fluids. Siemens Aktiengesellschaft, Hill Steadman & Simpson, November 11, 1997: US05685485 (54 worldwide citation)

A device is provided which allows exact apportioning and controllable atomization of fuel as necessary for various operating conditions of an internal combustion engine. The apportioning ensues with an apportioning aperture that can be closed via a valve needle. Separately therefrom, the atomization ...


2
Andreas Kappel, Bernhard Fischer, Bernhard Gottlieb, Randolf Mock, Eric Chemisky, Hans Meixner: Fluid metering device. Siemens Aktiengesellschaft, Schiff Hardin & Waite, November 6, 2001: US06311950 (45 worldwide citation)

A fluid metering device that employs a sealing element for delivering a metered dose of a pressurized fluid. The sealing element includes a metal bellows sealing element or metal bellows that attaches to a valve needle and a housing. The metal bellows includes a number of corrugated elements for sea ...


3
Andreas Kappel, Randolf Mock, Hans Meixner, Edward James Hayes: Apparatus and method for valve control. Siemens Aktiengesellschaft, Siemens Automotive Corporation, Hill & Simpson, March 2, 1999: US05875764 (33 worldwide citation)

An easily controllable primary drive (5) guided in a first bore (3), for example a piezo actuator, transmits its stroke by a piston-hydraulic stroke transmission with a hydraulic chamber (2) onto a stroke element (70) of the secondary side guided in a second bore (4). The pressure in a valve chamber ...


4
Andreas Kappel, Randolf Mock, Hans Meixner: Apparatus and method for valve control. Siemens Aktiengesellschaft, Hill & Simpson, May 16, 2000: US06062533 (27 worldwide citation)

A wall-controllable primary drive, for example a piezo actuator, guided in a first bore transfers its stroke motion-commutated onto a secondary-side lifter element guided in a second bore, transmitting said stroke by a piston-hydraulic stroke transmission on the basis of a hydraulic chamber. The pre ...


5
Andreas Kappel, Randolf Mock, Hans Meixner: Compensation element for the compensation of temperature-conditioned length changes of an object. Siemens Aktiengesellschaft, Hill & Simpson, November 21, 2000: US06148842 (22 worldwide citation)

The compensation element is compensating for temperature-conditioned length changes of an object. An injection valve that is fully functional in the entire range of the operating temperatures of a motor requires a device that compensates thermally conditioned length changes of the mechanical compone ...


6
Randolf Mock, Eric Chemisky, Andreas Kappel: Method for evaluating characteristic values of piezo-mechanical systems. Siemens Aktiengesellschaft, BakerBotts, November 26, 2002: US06487505 (15 worldwide citation)

For diagnosing coupled piezo-mechanical systems, methods are used which utilize electrical characteristic curves of the piezo-element that is contained in the piezo-mechanical systems. These electrical characteristic curves contain information about the mechanical condition of the overall piezo-mech ...


7
Randolf Mock, Hans Meixner, Andreas Kappel: Magnetostrictive actuator. Siemens Atkiengesellschaft, Hill & Simpson, December 15, 1998: US05850109 (11 worldwide citation)

Drive elements whose physical volume is considerably smaller than piezoelectric actuators for comparable mechanical characteristics and actuation travels can be developed on the basis of the magnetostrictive material Tb.sub.x Dy.sub.1-x Fe.sub.2 (Terfenol). Despite these characteristics, magnetostri ...


8
Bernhard Fischer, Bernhard Gottlieb, Andreas Kappel, Randolf Mock, Enrico Ulivieri: Fluid dosing device with a throttle point. Siemens Aktiengesellschaft, Baker Botts L, May 16, 2006: US07044407 (11 worldwide citation)

A fluid dosing device for a pressurized liquid is disclosed, which comprises a chamber (35) which is supplied with pressurized liquid by means of a liquid supply line (17, 19); a valve needle (9) which is guided through the chamber (35), the first end section of said valve needle being able to be li ...


9
Olaf Haack, Klaus Van Der Linden, Randolf Mock: Ultrasonic atomizer. Siemens Aktiengesellschaft, Herbert L Lerner, Laurence A Greenberg, February 10, 1998: US05716002 (6 worldwide citation)

An ultrasonic atomizer includes an electrically excitable piezoceramic and a coupling body being operatively connected to the piezoceramic. The coupling body has a surface coming into contact with a liquid to be atomized and the surface is in the form of a cap-shaped protuberance. The cap-shaped pro ...


10
Andreas Kappel, Randolf Mock, Hans Meixner: Device and method for dosing fluid. Siemens Aktiengesellschaft, Hill & Simpson, September 19, 2000: US06119952 (6 worldwide citation)

A device and method for dosing fluid has a housing enclosing a lifting element and a primary drive hydraulically operable on the lifting element via a hydraulic chamber. The lifting element is disposed within a borehole with a leakage permitting fit. A fluid chamber in communication with the borehol ...