Patents Assigned to Klockner-Humboldt-Deutz AG
  • Separator
    Patent number: 4464163
    Abstract: A centrifuge rotor includes a dynamically balanced casing assembly having upper and lower parts that define a hollow bowl with a continuous peripheral gap between such casing parts. The casing parts are held in position by a series of bolt assemblies which maintain the axial spacing. Each bolt assembly has a pair of portions respectively, rigidly secured to the casing parts, such bolt assembly portions having concentric interfitting surfaces, with a screw extending through one of said bolt assembly portions into the other. The concentric interfitting surfaces preferably include a step whereby precise location of the casing parts with respect to each other is achieved, even upon reassembly, thereby facilitating disassembly and reassembly as well as assuring maintenance of dynamic balance.
    Type: Grant
    Filed: January 21, 1982
    Date of Patent: August 7, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Wolfgang Heckmann, Karl Koslowski
  • Mower
    Patent number: 4457127
    Abstract: This mower has a mower beam with at least one rotating mowing device joined on the mower beam and also on a carrying beam arranged on the hitching mount, which in the forward movement of the machine is arranged in front of and above the mower beam, whereby the carrying beam is coupled somewhat in the center of the hitching mount behind the tractor about a vertical pivot axis and whereby the carrying beam outboard half from the hitching mount is somewhat in its center provided with a horizontal pivot axis in order to permit the outer part of the carrying beam carrying the mowing device to swing upwardly by means of a hydraulic cylinder.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: July 3, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Martin Maier, Hermann Ruprecht
  • Calcining system for the manufacture of cement clinker and the like
    Patent number: 4457705
    Abstract: A calcining system for the manufacture of cement clinker and the like including the combination of a preheater into which the raw material to be calcined is introduced, a rotary kiln which receives the preheated material either directly or through a preliminary calcinator, and a cooler which receives the discharge of the rotary kiln. In accordance with the invention, a heater means is operatively associated directly with the cooler to bring the cooler up to operating temperatures during start-up.
    Type: Grant
    Filed: August 31, 1982
    Date of Patent: July 3, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Hubert Ramesohl, Horst Herchenbach
  • Control element for agricultural machine
    Patent number: 4454785
    Abstract: A control element for an agricultural machine comprises a standard lever pivotal about a lever axis through angularly offset positions associated with respective operational levels of the machine. This lever carries a handle remote from the lever axis and centered on a handle axis different from the lever axis and a grip carried on the handle and rotatable thereon about the handle axis between at least one grip end position and an angularly offset grip central position. A grip switch is actuatable by the grip only in the grip end position. A thumb-operable pin is axially displaceable in the handle between an outer pin position and at least one inner pin position. A pin switch is actuatable by the pin only in the inner pin position, and biasing means urges the pin into the outer pin position.
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: June 19, 1984
    Assignee: Klockner-Humboldt-Deutz AG Zweigniederlassung Fahr
    Inventor: Josef Purrer
  • Light metal cylinder head for internal combustion engine
    Patent number: 4450800
    Abstract: A cylinder head of light metal for connection by threaded fasteners with a cylinder or crankcase of an internal combustion engine has an insert formed in the head at the hottest spot thereof in the vicinity of the exhaust passage and at a mounting location of the head. The insert is of a material having a high temperature and high pressure resistance to creep so as to substantially avoid any plastic deformation of the cylinder head.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: May 29, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventor: Walter Kotauschek
  • Method for separating non-ferrous metals from iron-containing materials
    Patent number: 4447261
    Abstract: A method for separating non-ferrous metals from an iron-containing waste material which includes providing separate contiguous layers of the waste material and a sintering mixture containing a finely divided carbonaceous fuel, passing hot combustion supporting gases, first through the layer of sintering mixture and then through the layer of waste material in a sintering zone under conditions sufficient to sinter the iron containing constituents, and volatilizing off the non-ferrous metals to produce a charge suitable for feeding to a blast furnace.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: May 8, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Hermann Hilbrans, Chatty Rao
  • Apparatus for adding strongly reacting materials into a melt
    Patent number: 4447046
    Abstract: The lowermost end of a filling tube which extends through a protective top into a vessel containing a melt includes a support flange which mounts a dip container inside the vessel. The dip container is shaped to define an internal reaction chamber below the lowermost end of the filling tube and to provide communication between the internal reaction chamber and the melt. It includes a basket-shaped metal container which is attached to the support flange and an outer sheath formed of a reinforcing material-containing refractory, the outer sheath covering both the metal container and the filling tube up to a point near the protective top so as to leave an expansion joint between it and each of the metal containers, the filling tube and the protective top.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: May 8, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventor: Gunther Beele
  • System for heating the operators cabin of a machine powered by an internal combustion engine
    Patent number: 4434934
    Abstract: A system for heating the operator's cabin of a machine powered by an internal combustion engine includes a primary oil conduit system wholly contained within the oil pan of the machine and having a high-pressure pump for feeding oil under heat and high pressure from the oil reservoir and back thereinto through a throttling element for heating the oil as it passes therethrough. A secondary oil conduit system operating under a pressure less than that of the primary system has an intermediate heat exchanger in heat exchange relationship with the oil heated by the first system, and has a heating heat exchanger located in the operator's cabin for supplying heat thereto. The secondary circuit contains liquid which is circulated by a circulating pump.
    Type: Grant
    Filed: June 11, 1982
    Date of Patent: March 6, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Gottfried Moser, Walter Nau, Ernst-Dieter Neumann
  • Insulated fuel injection nozzle device and method for manufacturing same
    Patent number: 4434940
    Abstract: An insulated fuel injection device, particularly for diesel engines, is provided for maintaining the nozzle spray hole temperature at a reduced level during engine operation whereby coking at the nozzle hole is prevented. The device comprises an elongated injection nozzle having a spray hole at one end thereof and an elongated hood covering the nozzle. The hood has a spray orifice therein which is aligned with the nozzle spray hole when the device is assembled. The interior dimensions of the hood and the corresponding exterior dimensions of the nozzle are such that a generally annular gap is presented between the hood and the nozzle, at least in the vicinity of the hole, and a quantity of heat insulating material is disposed in the gap adjacent the nozzle spray hole and the hood aperature.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: March 6, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Heinz Kupper, Helmut Busch
  • Centrifugal separator control
    Patent number: 4432747
    Abstract: A method and mechanism for controlling the operation of a centrifugal separator having a relatively rotating drum and screw conveyor whereby the speed of each is measured and the torque for driving the screw is measured and the speed differential control is in a predetermined functional relationship to the torque and at a particular maximum and minimum value of torque, the speed differential being changed independently of torque and when a predetermined change in torque is obtained, the predetermined functional relationship between the torque and speed differential being changed to a different characteristic step-wise with the characteristic or relationship being shifted step-wise.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: February 21, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Gunther Posse, Horst Jacob
  • System for heating the service cabin of a machine
    Patent number: 4432493
    Abstract: This invention relates to a system of heating the service or operator's cabin of a machine, such as a mobil crane, or the like, or a motor vehicle equipped with an internal combustion engine comprising a hydraulic pump, a heat exchanger located in the service cabin or in the hot-air supply line thereof, a heat generator connected between the pump and the heat exchanger in the oil circuit of the internal combustion engine having suction and return oil lines respectively extending from the pump and from the heat exchanger to an oil sump of the engine, an oil line by-passing the heat generator and being controlled by a directional control valve, and an oil line by-passing the heat exchanger and being controlled by a control mechanism.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: February 21, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Gottfried Moser, Hansjurgen Gross
  • Mower
    Patent number: 4432192
    Abstract: A mower has a mower support mount beam with at least one rotating mowing device as well as a flexible coupling to a carrying mount beam and a hitching mount. The carrying mount, when the machine is moving forward is in front of the mower support mount and above it. A latching mechanism is supplied for the carrying mount beam which includes a biased spring member and a movable intermediate member which projects into a clasping pocket of the carrying mount beam so that a swinging locking clasp which has a pull cord thereon can grip it.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: February 21, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Martin Maier, Hermann Ruprecht
  • Burner for solid fuels
    Patent number: 4428727
    Abstract: A burner for introducing a suspension of solid fuel particles into a combustion chamber which includes a tubular conduit arranged to receive the suspension therethrough, and flow diverting means positioned at the discharge end of the conduit, and subdividing the cross section of the discharge end into a plurality of discharge openings. The burner may include a centrally disposed conduit which is coaxial with and surrounded by the tubular conduit, and an outer conduit surrounding the tubular conduit and coaxial therewith. The flow diverting means can be positioned at various positions between the respective conduits, to create a turbulent suspension of particles in the primary air stream, creating an aspirating effect for drawing secondary air into the burner along with the turbulent suspension of solid fuel particles.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: January 31, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Herbert Deussner, Horst Herchenbach, Hubert Ramesohl, Wolfgang Breidenstein
  • Centrifugal bowl separator
    Patent number: 4427407
    Abstract: A centrifugal bowl separator contains a packet of conical discs having a series of feed discs with an intermediate disc of larger diameter disposed between each adjacent pair of feed discs. The substance to be treated enters a channel at the bottom of the disc packet and the channel discharges only above each feed disc. The material to be treated, namely both the heavy and the lighter components, flows in the spaces above the feed discs, and the heavier component is thrown against the underside of the intermediate disc and is flung from its larger periphery, while the lighter component flows along the upper surface of the feed disc and flows around its edge and out through the space below the feed disc. The spaces between the discs have conductive connection only at the radially outer area.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: January 24, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventor: Theodor Paschedag
  • System for burning fine-grained material, particularly for the manufacture of cement clinkers
    Patent number: 4425092
    Abstract: The invention relates to a method for burning fine-grain material, particularly for the manufacture of cement clinker from cement raw meal. The material is thermally treated in a multi-stage burning process with a pre-heating stage, a calcining stage with a high-degree of calcination, a sintering stage in a very short rotary kiln and a cooling stage. Fuel is introduced both into the sintering stage in the short rotary kiln as well as into the calcinating stage. Hot exhaust air from the cooling stage is supplied both to the sintering stage as well as to the calcining stage as furnace air. The invention also relates to an apparatus for the manufacture of mineral products of the burning process such as cement clinker.
    Type: Grant
    Filed: August 5, 1981
    Date of Patent: January 10, 1984
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Kunibert Brachthauser, Horst Herchenbach
  • Worm centrifuge
    Patent number: 4421502
    Abstract: A worm centrifuge with a rotatable drum and a rotatable screw therein and separate drives with a speed governable clutch between the drives to provide for a start-up by one of the drives, preferably a speed governable drive, and arranged so that the clutch can be released for independent driving of the drum and screw during normal operation.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: December 20, 1983
    Assignee: Klockner-Humboldt-Deutz AG
    Inventor: Willy Jakobs
  • Liquid heating system
    Patent number: 4420114
    Abstract: A liquid heating system includes a high-pressure hydraulic pump for suctioning the liquid from the liquid reservoir and delivering it thereto through a liquid conduit into which the pump is coupled. A drive is provided for the pump, and a pressure-reducing element is coupled into the conduit downstream of the pump for reducing the pressure and elevating the temperature of the liquid. The element has a fixed flow passage, and a heat exchanger is coupled into the conduit downstream thereof. An arrangement for controlling the discharge rate of flow produced by the pump is provided as a function of the calorific heat required to be generated by the system and/or of the temperature of the liquid.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: December 13, 1983
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Gottfried Moser, Walter Nau, Ernst D. Neumann
  • Cooling device for carbon anodes
    Patent number: 4414825
    Abstract: A mechanism for cooling molded bodies such as green carbon anodes including a disk shaped concave receiving transfer means which receives the bodies and either rejects them or transfers them to individual support stations on a cooling conveyor which carries them through a cooling zone, and delivers them to a discharge transfer means which either accepts or rejects the anodes, and the transfer means is selectively pivotal about either lateral edge to accept or reject the anodes.
    Type: Grant
    Filed: July 8, 1982
    Date of Patent: November 15, 1983
    Assignee: Klockner-Humboldt-Deutz AG
    Inventor: Joachim Gittelbauer
  • Method and apparatus for smelting sulfidic ore concentrates
    Patent number: 4414022
    Abstract: Method and apparatus for smelting a sulfidic ore concentrate such as a copper concentrate in which the concentrate is smelted in an oxidizing atmosphere, the melt is after-treated with reducing gases from a plurality of lances which blow the reducing gases onto the melt in the form of concentrated streams of high kinetic energy and form a metal-rich phase and a slag phase. The improvement of the present invention is concerned with oxidizing the concentrate sufficiently to form an enriched metal matte containing more than 75% by weight metal at a throughput of more than 500 metric tons per day, the oxidizing being carried out in a smelting cyclone operating as a steam generator and at a sufficiently high temperature so that the heat transferred to the cyclone walls is at least 500,000 Kcal/sq. m. of cyclone wall/hr.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: November 8, 1983
    Assignee: Klockner-Humboldt-Deutz AG
    Inventor: Gerhard Melcher
  • Method and apparatus for calcining limestone in a shaft kiln
    Patent number: 4414186
    Abstract: A method and apparatus for calcining minerals, particularly limestone, in a shaft kiln having at least two vertically spaced levels including cooled hollow supports through which a solid fuel is introduced into the kiln. One feature of the present invention resides in employing a granular coal as the fuel while other features are involved with the distribution of fuel between various inlet points, suspension of the fuel in an airstream, and the mechanical construction of the fuel conduits and their support located within the shaft kiln.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: November 8, 1983
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Martin Schmidt, Walter Kohler, Hans-Ulrich Loch, Albrecht Weber