Patents Represented by Attorney Edwin E. Greigg
  • Patent number: 5727738
    Abstract: A fuel injection valve for internal combustion engines having a valve element which is axially displaceable in a valve body and a valve retention body, which is configured as a twin-spring retainer and in which are arranged first and second valve springs acting on the valve element in the closing direction. The first valve spring acts continually on the valve element via a pressure pin, whereas the second valve spring acts on the valve element only after a certain opening stroke motion of the valve element, which motion traversed forms a preliminary stroke (h1), and, by this motion, subdivides the opening stroke motion of the valve element into a preliminary stroke against the force of the first valve spring and a residual stroke against the force of the first and second valve springs.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: March 17, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Karl Hofmann, Manfred Mack
  • Patent number: 5727881
    Abstract: An overpressure valve for a packaging container which includes a base plate with a central valve hole that coincides with a hole in a wall of the container and a valve diaphragm. The valve diaphragm covers the valve hole and the adjoining zones and includes two parallel peripheral zones which form a channel along an adhesive-free middle zone. To keep the opening pressure of the overpressure valve slight and to simplify the manufacture of the tool for the valve hole, the valve hole is formed of two intersecting circular holes which extend longitudinally of the adhesive-free middle zone of the valve diaphragm.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 17, 1998
    Assignee: Robert Bosch, GmbH
    Inventor: Klaus Domke
  • Patent number: 5725290
    Abstract: The invention is based on a unit for a vehicle brake system, having a housing block into which magnet valves and optionally other components to be interconnected electrically are built in. The magnet valves are covered by a housing cap, which has externally accessible plug connectors for the magnet valves. To protect the plug connectors against splashing water and dirt when the unit is mounted near the wheel, at least one cover provided, which together with the housing cap forms cable leadthroughs for cables that are connected electrically to the plug connectors.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: March 10, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Thomas, Karl Wutz, Klaus Lechner
  • Patent number: 5725289
    Abstract: An electromatically operated valve for automatic setting of a reduced flow cross section effective for a closed position of the valve is to be achieved. The valve has, in a valve dome, a longitudinally movable magnet armature with a separate valve push-rod which carries a closing element of a first seat valve which is open in the rest position. The first seat valve is located in a valve chamber from which a first pressure medium passage leads to a control chamber remote from the closing element and a second pressure medium passage leads to a control chamber, near the closing element, of the magnet armature. In addition, a second valve formed from the magnet armature and the valve push-rod is provided by means of which a connection between the first pressure medium passage and the second control chamber can be switched on and off.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: March 10, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Mueller, Bernhard Heugle, Kurt Herzog, Martin Oehler, Gunther Hohl, Hans-Jurgen Herderich
  • Patent number: 5724792
    Abstract: An apparatus for producing bag packages which includes an oscillation generator, a bearing frame which transmits oscillations in the longitudinal and/or crosswise direction to a forming pipe. The forming pipe and a forming shoulder of the apparatus are rigidly joined to one another. A longitudinal seam sealing device is also joined to the bearing frame. The oscillations serve the purpose of both low-friction transport of a tube via the forming shoulder and the forming pipe and of compacting the product.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: March 10, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Domke, Joerg Starkmann, Christoph Lampl, Holger Lachenmaier, Wolfgang Bischet, Gerald Keicher
  • Patent number: 5723784
    Abstract: The invention proposes a device for measuring the mass of a flowing medium, in particular the mass of air aspirated by internal combustion engines. The device has a platelike sensor element which is accommodated in a recess of a sensor carrier, and which with a sensor region that has at least one measuring resistor is exposed to the flowing medium in order to measure its mass. The sensor element is accommodated essentially flush in the recess and is retained in the recess by being glued to a bottom face in the recess. The bottom face of the recess of the sensor carrier has a troughlike indentation, which extends at least partially along the circumference of the sensor element outside the sensor region that has the at least one measuring resistor. The device according to the invention is intended to measure the mass of a flowing medium, in particular for measuring the mass of air aspirated by internal combustion engines.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: March 3, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Lembke, Josef Kleinhans, Hans Hecht, Helmut Bassler, Gerhard Hueftle, Alexander Kromer, Kurt Weiblen, Stefan Lehenberger, Guenther Frick, Klaus Reymann, Axel-Werner Haag, Dieter Tank, Uwe Konzelmann, Waldemar Guenther, Henninge Marberg
  • Patent number: 5722369
    Abstract: A fuel injection pump that has both a governor spring and an adjustable idling spring, suspended in a manner structurally connected to the housing. The setting of the spring is adjustable between a minimum idling setting and a maximum idling setting via a coupling arrangement, in accordance with an adjustment of an adjusting lever.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: March 3, 1998
    Assignee: Robert Bosch, GmbH
    Inventor: Willi Weippert
  • Patent number: 5720817
    Abstract: A rack for supporting vehicle body parts during painting which includes a base frame, the base frame supports oppositely disposed side supports which are prevented from separating spacially by use of oppositely disposed end supports which are secured to the side supports. The side supports and end supports support attachments to which the body parts are secured for painting. The base, side supports, end supports and attachments are made of tubular steel round and square pipes. The square parts are held in a fixed directional position but may be adjusted along a line whereas the round parts may be rotated relative to each other for adjustment of position.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: February 24, 1998
    Inventor: Richard Albert Taylor
  • Patent number: 5718386
    Abstract: A fuel injection valve for internal combustion engines, with a valve body tightened on a valve retaining body, a valve member is guided in a bore of the valve body so that the valve member can move axially and in which the bore has a radially enlarged pressure chamber into which at least one supply conduit which extends beside the bore feeds. An adjusting nut which braces the valve body against the valve retaining body with an inner, conically embodied annular shoulder rests against a conical annular step of the valve body. The annular step is disposed at a level of the pressure chamber. In order to achieve a precisely localized and reliable transmission of radial clamping forces onto the valve body, the angle (.alpha.D) formed by the conical annular step on the valve body with the valve member axis is smaller than the angle (.alpha.S) formed by the conical annular shoulder of the adjusting nut with this axis.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: February 17, 1998
    Assignee: Robert Bosch GmbH
    Inventor: Stefan Haug
  • Patent number: 5718202
    Abstract: Electronic engine management systems have a plurality of individual components, some of which are relatively far away from one another. Electrically connecting the individual components, particularly to an electronic control unit therefore requires relatively long electrical connecting lines and relatively many plug connection. The apparatus includes a plurality of components, that is, at least one throttle device accommodated rotatably in a throttle valve housing and actuatable by a throttle valve control motor, an electronic control unit, a regenerating valve, and/or an air flow rate meter, which according to the invention are accommodated in a common housing as a premountable structural unit. The apparatus of the invention is intended in particular for mixture-compressing internal combustion engines with externally supplied ignition.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: February 17, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Willy Bentz, Waldemar Ernst, Peter Schiefer, Heiko Buss
  • Patent number: 5718220
    Abstract: An improved container for heating grease in a truck including a waste grease holding tank and a heating tank for immersion of a waste grease container into a vat of hot water for loosening the grease in the waste grease container so that the grease in the waste grease container can be dumped into the grease holding tank of the truck. The vat of hot water includes three double walled sides in which an upper edge of the double walls include a plurality of spaced hot water inlet apertures and the bottom of the double wall include fewer smaller drain apertures. The same three sides include hot water flow areas through which hot water flows in order to heat water in the heating tank. The double-walled sides for chambers which receive overflow hot water when a large waste grease container is placed in the vat. These chambers prevent spilling the hot water over the edges of the tank.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: February 17, 1998
    Inventor: Donald R. Onken
  • Patent number: 5718384
    Abstract: The invention relates to an injection nozzle for a diesel injection system in motor vehicles, having at least one spray passage penetrating an injection nozzle and to a process for manufacturing the injection nozzle. The invention provides for the injection nozzle to be formed from two parts which engage with one another as a form-fit and are in contact on generated surfaces and for the spray passages to be configured as open-edged depressions on at least one of the generated surfaces.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: February 17, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Christoph Treutler, Hans-Friedemann Kober
  • Patent number: 5718488
    Abstract: An oscillation damper that has a cup-shaped elastomer diaphragm body, with a bottom diaphragm. The diaphragm body is received tightly on an opening side in a bore of a housing, and fits around a protrusion of a closure body that closes the bore. Between the closure body and the diaphragm, a support body having an end face that is concave toward the diaphragm is received in the diaphragm body. A void formed between the diaphragm and the support body communicates with the atmosphere, through a conduit embodied on the support body and through an opening in the closure body. The oscillation damper can be used in hydraulic slip-controlled motor vehicle brake systems.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: February 17, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Steffen Schneider, Ernst-Dieter Schaefer, Guenter Krenz
  • Patent number: 5715795
    Abstract: A fuel injection apparatus for internal combustion engines, having a fuel injection pump inserted into the housing of the engine. A pump piston, which is driven axially back and forth in a cylinder bore, with one end face defines a pump work chamber from which a short injection line leads to an injection valve, and which can be made to communicate via a feed line with a fuel-filled low-pressure chamber. A magnetic valve disposed on the fuel injection pump controls the high-pressure feeding into the injection line. In order to avert an overly rapid return flow of fluid from the injection line into the pump work chamber, a return flow throttle valve is inserted into the injection line.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: February 10, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Josef Guentert, Juergen Fritsch
  • Patent number: 5711274
    Abstract: A system and method for reducing the fuel pressure in a fuel injection system after the internal combustion engine to be supplied has been shut off, in which a high fuel pressure built up in a high-pressure reservoir chamber (common rail) by a high-pressure feed pump, is relieved into the supply tank via control valves that control the injection event and are provided on the injection valves that communicate with the common rail. For purposes of this pressure relief, the control valves are triggered such that they connect a pressure chamber of the injection valve with the common rail or the supply tank so briefly that the pressure urging the valve member of the injection valves in the opening direction remains below an opening pressure of the injection valves, and this triggering process of the control valves is repeated until a desired pressure in the common rail is reached.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: January 27, 1998
    Assignee: Robert Bosch GmbH
    Inventor: Eugen Drummer
  • Patent number: 5711282
    Abstract: The invention relates to a method for forming a fuel-air mixture and to a fuel supply device for an internal combustion engine, having an intake manifold, into which an air intake tube with an aspirated air metering device disposed in it discharges and to which the intake tubes leading to individual combustion chambers are connected. A plurality of fuel injection valves are provided, each of which is assigned to one combustion chamber, and having a central fuel vaporizer to which fuel can be supplied by means of a fuel metering device. To form a fuel-air mixture, the fuel to be supplied to the engine is vaporized and the fuel vapor is supplied to the aspirated air. In order to lower pollutant emissions after starting during the warmup phase of the engine, vaporization of the fuel is done at relatively low temperatures, so that the fuel vapor produced essentially comprises only highly volatile fuel components.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: January 27, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Ernst-Walter Lang, Klaus Joos
  • Patent number: 5711271
    Abstract: Electronic engine control systems have a plurality of individual components on the intake tube, some of them located relatively far from one another. For electrically connecting the individual components to the electronic control unit, relatively long electric connecting lines and a relatively large number of plug connections are therefore necessary. This invention sets forth a preassembled throttle apparatus which includes at least one throttle device, rotatably accommodated in a throttle valve support, and an idling adjuster in a housing; the throttle apparatus has a bypass conduit, which bypasses the throttle device and which can be varied by the idling adjuster, into which a regeneration valve can output fuel, the regeneration valve being triggerable by an electronic control unit that is also accommodated in the housing. The throttle apparatus of the invention is intended particularly for mixture-compressing internal combustion engines with externally supplied ignition.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: January 27, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Walter Schlagmueller, Gerhard Schellenberg, Thomas Wiesa, Rolf Litzinger, Harald Laue, Jurgen Rottler, Ralph Schimitzek, Peter Jauernig
  • Patent number: 5711583
    Abstract: A magnetic valve that switches at high differential pressures and furnishes a large flow cross section. The magnetic valve has an armature, which when current is supplied to a coil is movable toward a pole core counter to the force of a restoring spring. The armature is capable of opening an auxiliary valve of small sealing diameter directly and a main valve of large sealing diameter indirectly. The auxiliary valve and the main valve have a common closing body, which is movable relative to the armature with a limited stroke. The auxiliary valve communicates through a conduit of the closing body with the outflow side of the magnetic valve. In the open position of the magnetic valve, the closing body is held by a stop ring of the armature. The magnetic valve is suitable in particular for slip-controlled hydraulic brake systems of motor vehicles.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: January 27, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Bareiss, Michael Krauter
  • Patent number: 5711151
    Abstract: A brake-pressure modulation device in which a hydraulic unit, fitted with solenoid valves, with return pumps, accumulators and dampers of an anti-lock brake system also has a tandem brake master cylinder. The hydraulic unit has a housing with a standard location hole, into which four lip seals identical at least in their outside diameters are inserted. The lip seals hold a primary and a secondary piston of the tandem brake master cylinder. The use of four lip seals with the same outside diameter makes it possible to use the same housing with the standard location hole for different types of vehicle, even when the piston diameter and the operating stroke are changed.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: January 27, 1998
    Assignee: Robert Bosch GmbH
    Inventor: Ortwin Engfer
  • Patent number: D391329
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: February 24, 1998
    Assignee: Robert Bosch GmbH
    Inventor: Cort English