Patents Assigned to Daimler-Benz
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Patent number: 5704314Abstract: In an electromagnetic operating arrangement for actuating the intake and exhaust valves of an internal combustion engine wherein a valve operating member is movably supported in axial alignment with a valve stem and engaged by an operating member spring which biases the valve operating member into engagement with the valve stem, the valve operating member has an armature disc movably supported thereon but held in engagement with a stop on the valve operating member by a spring arrangement which exerts a spring force smaller than the spring force exerted by the valve operating member spring but greater than the resultant of the valve closing and the valve operating springs such that the valve operating member is always in force-transmitting contact with the valve.Type: GrantFiled: February 5, 1997Date of Patent: January 6, 1998Assignee: Daimler-Benz AGInventors: Richard Allmendinger, Thomas Hardt, Robert Kekenj
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Patent number: 5705746Abstract: In a method of determining the traction of motor vehicle wheels on wet pavements, a surge force generated by a water film on the pavement in front of at least one of the vehicle wheels is measured and from the measured surge force value and the instantaneous vehicle speed a critical speed at which the vehicle wheel will aqua-plane is determined and this critical speed is displayed to the driver or it is used to control a vehicle drive unit to keep the vehicle speed below the critical speed.Type: GrantFiled: February 24, 1997Date of Patent: January 6, 1998Assignee: Daimler-Benz AGInventors: Diane Trost, Jurgen Trost, Markus Raab
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Patent number: 5702067Abstract: The invention relates to a method for determining the angular momentum vector of a satellite, located in an external magnetic field, relative to a satellite-integral orthogonal system of coordinates. The satellite has a torque generating system to generate pulse-shaped torques around all three axes. A magnetometer measuring on three axes is used, whose measured values are fed to a computer. In the latter, at successive points in time and using the current measured values, an observer equation is integrated, with new estimated values being determined for the angular momentum vector. Using these as well as the current measured values, an inequality is continuously checked; when it is not fulfilled, the torque generating system operates briefly, so that finally the fulfillment of the inequality is forced and identity of the last estimated value that has been determined with the rotary pulse vector to be determined is achieved.Type: GrantFiled: September 11, 1995Date of Patent: December 30, 1997Assignee: Daimler-Benz Aerospace AGInventor: Ernst Bruederle
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Patent number: 5703321Abstract: A device for locating artillery and sniper fire with a sensor and acoustically triggered marking means. An igniter is provided with the acoustic sensor and is adjustable in terms of frequency and/or pulse pattern. A remover preventer is provided and the components are provided in a shell-proof housing whereby removal triggers the marking means.Type: GrantFiled: October 23, 1995Date of Patent: December 30, 1997Assignee: Daimler-Benz Aerospace AGInventors: Johannes Feierlein, Ulrich Rieger
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Patent number: 5699765Abstract: A cylinder head for a uniflow-scavenged two-stroke internal-combustion engine, particularly in motor vehicles, is provided with outlet valves which can be controlled by a camshaft. Outlet ducts connected with the outlet valves extend out of the cylinder head. A total of four outlet valves are provided for each cylinder, with the associated outlet ducts being guided to one side of the cylinder head. The camshaft is arranged laterally of the cylinder head opposite the outlet side of the outlet ducts. The outlet valves which are situated on the side facing away from the camshaft can be operated from the direction of the camshaft by way of operating members transversely penetrating the cylinder head.Type: GrantFiled: December 23, 1996Date of Patent: December 23, 1997Assignee: Daimler-Benz AGInventors: Frank Duvinage, Markus Paule, Michael Kramer, Nils Rippert, Christian Enderle
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Patent number: 5695396Abstract: An air supply system for an aircraft cabin reduces the concentration of contaminations of the air in the cabin by a flexibly controllable valve system that comprises pairs of valves which on the one hand are ganged to respective air openings. One valve of a pair is connected to a fresh air or mixed air supply line. The other valve of a pair is connected to a suction or exhaust duct. Thus, depending on which valve in a pair is open and which is closed, the respective air opening can function as an air outlet for supply of mixed or fresh air into the cabin or as a suction port. Such a system permits a flexible volume control of the supply of fresh air into selectable cabin sections as well as a flexible volume control for the removal of used air from respective cabin sections. Additionally, it is now possible to increase the size of the non-smoking section at the expense of the smoking section or vice versa simply by a respective valve control.Type: GrantFiled: March 15, 1996Date of Patent: December 9, 1997Assignee: Daimler-Benz Aerospace Airbus GmbHInventors: Michael Markwart, Klaus Petry, Thomas Scherer
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Patent number: 5697069Abstract: A transmit-receive switch which can be integrated. The receive diplexer of the switch comprises a parallel resonant circuit which can be completed or connected into the switch via a heterobipolar transistor. The transmit diplexer includes a series resonant circuit or a parallel resonant circuit which is connected into the switch circuit via a further heterobipolar transistor. Each of the heterobipolar transistors is rendered conductive or non-conductive via the applied HF power. That is, a high HF power, as is present in the transmission case, causes the respective transistor to become conductive and via the respective resonant circuits, cause the receive diplexer to become high impedance and block any signal, and cause the transmit diplexer to become low impedance and pass the high HF power substantially undampened.Type: GrantFiled: October 7, 1996Date of Patent: December 9, 1997Assignee: Daimler-Benz AktiengesellschaftInventors: Konrad Bohm, Rainer Gotzfried, Johann-Friedrich Luy
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Patent number: 5694319Abstract: A process is provided for determining a travel-situation-dependent steering angle, in which a specification of a characteristic value for the transverse motion of the vehicle is given, the actual value of the yaw angular velocity of the vehicle is evaluated, and a criterion is derived as a function of the actual value of the yaw angular velocity as well as the predetermined characteristic value. As a function of the criterion, an influencing of the travel behavior of the vehicle takes place by an intervention in the vehicle steering. For the derivation of the criterion, additionally the side slip angle, the steering angle and the vehicle velocity are evaluated, and, for the derivation of the criterion, the lateral forces at the vehicle wheels are taken into consideration.Type: GrantFiled: November 8, 1996Date of Patent: December 2, 1997Assignee: Daimler-Benz AGInventors: Avshalom Suissa, Friedrich Bottiger, Rudolf Lorenz
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Patent number: 5693237Abstract: The invention pertains to a process for producing integrated active-matrix liquid crystal displays with a checkered silicon die subdivided into picture elements. Each picture element consists of a light-controlling element and an integrated, driving electronic switching element (20) which drives the translucent electrode (16) of the picture element. The array of picture elements is covered with glass layers (6, 12) with polarizing and analyzing layers on their outer faces. The invention in characterized in that the switching elements are integrated into a transparent silicon layer in which optic windows for the lighting-controlling elements are integrated. This is done by etching out a cavity in the rear side of the silicon die in the region of the liquid crystal display, leaving a thin layer of silicon or no silicon at all in the region of the optic window. On the thicker frame (10) of the silicon die there is a drive circuit.Type: GrantFiled: January 16, 1996Date of Patent: December 2, 1997Assignee: Daimler-Benz AktiengesellschaftInventor: Alexander Bodensohn
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Patent number: 5690034Abstract: A composite push-pull bar for use in a rail vehicle includes end-side connecting elements for axial introduction of compressive and tractive forces; and a rod-shaped structural element disposed between the end-side connecting elements for take-up and transmission of compressive and tractive forces. The rod-shaped element comprises a longitudinally extending core, a prestressed composite winding, including a defined number of wrappings of one or several reinforcing fibers embedded in a cured matrix material, applied in a longitudinal direction of the core so as to leave opposite longitudinal sides of the core not covered by the winding, the winding extending over the connecting elements and two skins arranged on the opposite longitudinal sides of the core not covered by the winding to form a sandwich structure with the core and which remain rigid under compression in their longitudinal direction.Type: GrantFiled: July 9, 1996Date of Patent: November 25, 1997Assignee: ABB Daimler-Benz Transportation (Deutschland) GmbHInventors: Wolfgang Schahl, Peter Weichelt, Ulrich Rudolph, Gunter Spur, Hartmut Mohr
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Patent number: 5691053Abstract: A coating material and coating process for color coating articles, such as motor vehicle bodies, and coated articles produced therewith. The coating contains a paint vehicle composed of at least one curable liquid-crystal polymer (LCP), the colored appearance of the coating being determined by mesogens of the paint vehicle which exhibit an interference effect, the mesogens automatically aligning themselves substantially perpendicular to the surface of the article during application of the coating material and adopting a chiral-nematic configuration in which they form a helix having a pitch length which can be influenced by heat within a specified temperature range. The liquid-crystal polymers are such that they are not crosslinked by heat and also such that the temperature level at which the pitch length of the helix can be influenced is above the temperature at which the color coated article is used.Type: GrantFiled: May 15, 1995Date of Patent: November 25, 1997Assignee: Daimler-Benz AGInventors: Michael Gailberger, Anne Barth, Hans Ruetger Kricheldorf, Volkmar Vill, Mihai Gurau, Matthias Berghahn
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Patent number: 5689067Abstract: The invention relates to a method and apparatus for monitoring wear of an engine timing chain. During engine operation, the relative phase relation of the signals of two engine-integrated on-board sensors which detect the angular position of different chain sprockets with respect to one another and are situated on different chain sprockets of the timing chain drive, is determined, and is then compared with a predetermined desired value. If the current actual phase relation differs from the desired value, a signal is emitted which reports an unacceptable lengthening of the timing chain. In addition to the sensors, the diagnostic device contains a signal processing unit which, detects the phase relation of the received sensor signals with respect to one another and performs a desired value comparison with respect to the phase relation. If the phase relation deviates from the predetermined desired value, a signal generator emits a signal reporting a lengthening of the timing chain.Type: GrantFiled: January 25, 1996Date of Patent: November 18, 1997Assignee: Daimler-Benz AGInventors: Siegfried Klein, Bernd Rehfus
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Patent number: 5687932Abstract: An apparatus for removing heat from a thermally highly loaded structure, such as a spacecraft or hypersonic aircraft, is based on an endothermic reaction, and particularly the water gas synthesis reaction. A system of pipes (2) is arranged in the areas of the structure that are to be cooled. The pipes (2) are filled with a carbon core that includes passages through which steam passes, to react with the carbon and generate water gas. The system preferably includes a steam generator that uses some of the heat from the areas to be cooled for generating the steam that is conveyed through the carbon filled pipes (2).Type: GrantFiled: March 27, 1995Date of Patent: November 18, 1997Assignee: Daimler-Benz Aerospace AGInventor: Jose Gomes
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Patent number: 5684054Abstract: The invention comprises a process for recovering secondary polyols from polyadducts which contain nonglycolysable constituents. In the process, a precomminuted polyadduct starting material is pretreated with glycols in a shear reactor at elevated temperature and pressure, for a relatively short time period, the nonglycolysable constituent being further comminuted and dispersed and the polyadducts being preglycolyzed. The preproduct thus obtained is broken down in subsequent stir reactors at a somewhat elevated temperature and for longer times, first without the further addition of glycol, and then with further addition of glycol. From the secondary polyol finally obtained, a plastic can be produced which can be further processed to make plastic components.Type: GrantFiled: September 22, 1995Date of Patent: November 4, 1997Assignee: Daimler-Benz AGInventors: Bernd-Uwe Kettemann, Michele Melciorre
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Patent number: 5683040Abstract: The invention relates to a method for recycling electronic waste in the form of disassembled printed circuit boards from electronic devices, from which the components have not been removed, known as printed circuit boards. After removal of the batteries, mercury switches and PCB-containing capacitors, the printed circuit boards are mechanically precomminuted and the particles are cryogenically embrittled with liquid nitrogen and comminuted in a hammermill.Type: GrantFiled: May 20, 1996Date of Patent: November 4, 1997Assignee: Daimler-Benz AGInventors: Ralf Jakob, Michele Melchiorre
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Patent number: 5684494Abstract: The invention provides a reflector antenna, especially for a communications satellite, having at least one fixed main reflector (102) with an essentially circular aperture. A fixed feed system (118) includes a horn radiator (108) with a rotationally symmetric radiation diagram and a fixed polarization direction. An auxiliary reflector may be arranged to be rotationally positionable around a main axis (E) and has a reflecting surface that is shaped as a partial surface of a nonrotationally symmetric ellipsoid with a low numerical eccentricity, which illuminates main reflector (102) elliptically with an ellipticity that is essentially constant regardless of the rotational position.Type: GrantFiled: December 15, 1995Date of Patent: November 4, 1997Assignee: Daimler-Benz Aerospace AGInventors: Norbert Nathrath, Helmut Wolf, Ludwig Haas, Manfred Lieke, Detlev Blaschke
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Patent number: 5683044Abstract: A hammer mill for batchwise operation has a mill housing having a perforated screening plate intended for discharging a fine fraction of the milling material. A coarse fraction of the milling material is emptied through an emptying flap. A supply shaft opens tangentially into the milling chamber. The supply shaft is closed by a movable closure wall. In order to maintain short consistent treatment times of the milling material and to precisely reproduce a specific degree of filling for the treatment space, the supply shaft is dimensioned such that it can receive more than a milling-chamber fill. The movable closure wall is displaceable back and forth between a raised standby position and a lowered operating position such that the milling material introduced into the supply shaft when the closure wall is raised is forced into the milling chamber and then held therein by the closure wall being displaced in the direction of the milling chamber.Type: GrantFiled: March 7, 1996Date of Patent: November 4, 1997Assignee: Daimler-Benz AGInventors: Martin Gueldenpfennig, Joachim Pfitscher
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Patent number: 5678788Abstract: A load glider has, between the parachute surface and the load, a device in which a reversible transfer of mechanical energy from the main lines to the steering lines takes place, so that essentially only frictional forces are to be overcome during the operation of the steering lines. The device includes two differential gears, which are arranged in parallel and are accommodated in housings in which a steering line is wound up on a roller with a larger diameter and a main line is wound up on the other roller with a small diameter. Gears, which can be driven by pinions driven by electric motors, are flanged onto the larger rollers.Type: GrantFiled: September 15, 1995Date of Patent: October 21, 1997Assignee: Daimler-Benz Aerospace AGInventors: Walter Hetzer, Ulrich Rieger
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Patent number: 5678406Abstract: In an energy generating system, which is preferably suitable for satellites and space stations, a total of four Stirling engines are combined together into a cross-shaped unit, in the center of which is arranged a cross-gear drive that is acted upon by the pistons of the Stirling engines. Therein, two planet gears revolve around in internally toothed annular gears. The common shaft of the annular gears is connected with the piston rods of the Stirling engines by an inner crankshaft, which simultaneously carries the planet gears, and by an outer crankshaft articulately connected with the inner crankshaft. Both crankshafts comprise counterweights as balancing masses, whereby a complete mass balancing of the cross-gear drive and therewith a vibration-free operation of the entire arrangement is achieved.Type: GrantFiled: April 26, 1996Date of Patent: October 21, 1997Assignee: Daimler-Benz Aerospace AGInventor: Dietrich Ehrig
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Patent number: 5676352Abstract: The vibration absorbers have mounts for radial fastening of the vibration absorber to an inside surface of a wheel rim to be used on rails. A plurality of mounts are uniformly distributed over the circumference of the inside surface and are each coupleable to the wheel rim in an acoustically good conducting manner against a surface that matches the radius of curvature of the inside surface. On each mount at least one vibration absorber consisting of a sequence, running in the radial direction, of metal and plastic plates can be coupled in an acoustically effective manner by means of a coupling surface. The vibration absorbers and mount are releasably connected with one another and have a coupling surface that is always the same and is independent of the radius of curvature of the inside surface of the wheel rim.Type: GrantFiled: December 1, 1995Date of Patent: October 14, 1997Assignee: Daimler-Benz Aerospace AGInventors: Thomas Mayer, Josef Bartl, Klaus Ermert