Patents Assigned to Robert
-
Patent number: 4395988Abstract: A fuel injection system for internal combustion engines having a multiplicity of injection valves which serves to provide fuel supply is proposed. The fuel injection system includes a common, rigid fuel line, having plug nipples into which the injection valves associated with the individual cylinders of the engine can be inserted in a sealing manner. The fuel line comprises one fuel distributor line and one fuel return flow line located one above the other. Each injection valve has one inlet stub and one outlet stub disposed concentrically relative to one another, protruding into the plug nipple in such a manner that the inflow stub communicates with the fuel distributor line and the outflow stub communicates with the fuel return flow line. As a result, not only is it possible to provide simple sealing toward the outside between the injection valve and the plug nipple but also rapid assembly of the fuel injection system is assured.Type: GrantFiled: March 20, 1981Date of Patent: August 2, 1983Assignee: Robert Bosch GmbHInventors: Heinrich Knapp, Mathias Linssen, Jurgen Peczkowski, Waldemar Hans
-
Patent number: 4395981Abstract: To suppress negative half-waves derived from a magneto armature and not used for ignition without use of external damping networks, the semiconductor switch controlling current flow, and abrupt turn-off to initiate an ignition event, is formed as a monolithic semiconductor element, and the inherent inverse diode of the monolithic element is utilized to pass the reverse voltage half-waves. To prevent damage to the inherent diodes due to over-voltage or current overloading, a damping resistance element is connected in series with the main current carrying path of the monolithic circuit elements, preferably a Darlington transistor, which, preferably, is a semiconductor resistor having a preferred current passage characteristic in the same direction as the current flow through the Darlington transistor, for example a Zener diode, a resistor, or a series of diodes polarized like the inverse diode, bridged by a diode conducting in the same direction as the Darlington transistor, or the like.Type: GrantFiled: May 23, 1980Date of Patent: August 2, 1983Assignee: Robert Bosch GmbHInventors: Jiri Podrapsky, Josef Orova
-
Patent number: 4395986Abstract: A fuel injection apparatus is proposed for internal combustion engines with distributor and apportionment valves, which serves to apportion a quantity of fuel proportional to the induced air quantity. The distributor and apportionment valves of the fuel injection apparatus comprise a slide valve which is displaceable opposite a slotted bushing fixed in the valve housing and equipped with slots, in order to effect the variation of the current flow area of the apportionment valves. A control sleeve is interposed between the slotted bushing and the control slide and includes a portion which partially covers the control slots in the bushing to provide for fine control of the control slots in the bushing.Type: GrantFiled: October 3, 1978Date of Patent: August 2, 1983Assignee: Robert Bosch GmbHInventor: Johannes Brettschneider
-
Patent number: 4395929Abstract: The invention sets forth a method and a corresponding stamping tool for waste-free stamping out packaging strips such as the so-called press-through packages. These press-through packages are made of a strip of foil comprising a lower foil strip with depressions for receiving tablets, lozenges or the like and a foil cover strip which closes off the depressions. The individual packaging strips, in order to enable problem-free further processing and to avoid injuries, have rounded corners.Type: GrantFiled: March 4, 1982Date of Patent: August 2, 1983Assignee: Robert Bosch GmbHInventor: Theo Moser
-
Patent number: 4395852Abstract: A guard for an open top gutter mounted on the eaves of a building of the type having a roof covering with a peripheral edge of the roof covering adjacent to the gutter arranged so it can be lifted slightly to receive a portion of the gutter guard. The gutter guard includes an elongated generally rectangular sheet of thin, flexible, resilient plastic material having a width about twice the width of the open top of the gutter. The plastic sheet is divided longitudinally into imperforate and perforate portions, each portion adapted to be alternately positioned under the peripheral edge of the roof covering with the other portion positioned over the gutter. The outer longitudinal edges of the sheet are formed with narrow bendable flaps, defined by fold lines, and the imperforate and perforate portions of the sheet are separated by another fold line. A clip fits over the top rim of the gutter and receives the edge of the guard and its flap to hold the guard in position on the gutter.Type: GrantFiled: April 13, 1981Date of Patent: August 2, 1983Assignee: Robert G. CarterInventor: Darl L. Tang
-
Patent number: 4395927Abstract: The hydraulic regulating device for an automatic transmission system in motor vehicles having a plurality of hydraulic couplings, includes a single pressure build-up regulating valve and a single pressure decrease regulating valve and assigned to each coupling a solenoid operated directional control valve having its working port connected to the couplings, its pressure port connected via a switch-on reversing valve to the pressure build-up regulating valve, and its return port connected via a switch-off reversing valve to a return conduit; both reversing valves are controlled according to predetermined pressure levels on the coupling so that in the working position of the switch-on reversing valve the coupling is connected to a stable high pressure and when the coupling process is initiated by reversing the position of the directional control valve, the switch-off reversing valve connects the coupling element to the pressure decrease regulating valve.Type: GrantFiled: October 23, 1980Date of Patent: August 2, 1983Assignee: Robert Bosch GmbHInventors: Alfred Muller, Joseph Sauer, Manfred Schwab, Meinrad Feder, Achim Schreiber
-
Patent number: 4395643Abstract: To provide for essentially inertia-free amplitude adjustment of video signals, an electrical circuit is provided with a field effect transistor having variable source-drain resistance. The circuit includes two junction transistors which are connected to the gate electrode of the field effect transistor and either to the source electrode or the drain electrode. One such transistor is connected as an impedance converter, and the other in grounded base configuration. By means of a variable voltage applied to a resistor is connected to the gate electrode of the field effect transistor, source-drain resistance of the field effect transistor can be varied essentially linearly.Type: GrantFiled: December 4, 1980Date of Patent: July 26, 1983Assignee: Robert Bosch GmbHInventor: Klaus Lehmann
-
Patent number: 4394823Abstract: To positively retain a signal transducer coil within an insert ring, axially stacked on a fuel injection nozzle assembly, in which the induction coil provides an output signal upon axial reciprocating movement of the valve needle element of the injection valve, the opening is made large enough to receive a holding sleeve with an inwardly extending flange, the holding sleeve fitting over the induction coil and pressing the coil against the bottom wall of the opening. The holding sleeve, itself, preferably made of magnetic metal, is adhesively secured in the opening which, preferably, has a non-cylindrical shape, either extending conically or formed with a ring groove of, preferably, sawtooth cross section.Type: GrantFiled: October 13, 1981Date of Patent: July 26, 1983Assignee: Robert Bosch GmbHInventors: Odon Kopse, Nestor R. Amaya
-
Patent number: 4394973Abstract: A fuel injection valve is proposed for fuel injection systems of internal combustion engines, which serves to supply fuel into the intake tube of the engine. The injection valve includes a movable valve element which cooperates with a fixed valve seat, downstream of which are provided horizontal fuel guidance bores which discharge tangentially into a spin chamber. The spin chamber is disposed so that it widens conically in the flow direction. The fuel guidance bores simultaneously serve as metering bores. The spin chamber causes an axial speed component to be imparted to the fuel entering via the fuel guidance bores. As a result, the dwell time of the metered fuel within the spin chamber is short, and even in the case of quite short injection pulses, the fuel is still sufficiently well prepared.Type: GrantFiled: March 30, 1981Date of Patent: July 26, 1983Assignee: Robert Bosch GmbHInventors: Rudolf Sauer, Wolfgang Kienzle, Werner Paschke, Waldemar Hans
-
Patent number: 4395673Abstract: A conventional on-off voltage regulator responsive to the output voltage of the rectifier of a vehicular battery charging system, operates three circuits each containing a pulse transformer and its driving transistor and other components for controlling the three SCRs that provide the negative side of the rectifier bridge, so that they will either pass entire halfwaves or block completely. The other three rectifier elements of the bridge are ordinary diodes. With this arrangement the SCRs may have the same rating as the other diodes of the bridge, and the thermal load is evenly distributed, while an alternator having a permanent magnet field can be used.Type: GrantFiled: May 1, 1981Date of Patent: July 26, 1983Assignee: Robert Bosch GmbHInventor: Wolfgang Kurz
-
Patent number: 4395649Abstract: An electrically driven linear vibrator has swing drive for vibrating troughs, jarring tables or the like comprises a stator with an exciter winding, an armature guided for linear movement in a direction transverse to the field produced by the stator and a pair of oppositely acting return springs forming together a swing drive, the vibration of which may be used to drive a device connected to the vibrator. The return springs may be constituted by metal springs, gas springs or a combination of both. The swing drive may be constructed as single-acting or double-acting drives. A diode may be connected with the electrical conductors leading to exciter winding so that at a line frequency of 50 Hz, an oscillation frequency of 100 Hz, 50 Hz or 25 Hz may be obtained. The vibrator may also be provided with a piston blower for cooling the windings of the stator.Type: GrantFiled: March 20, 1979Date of Patent: July 26, 1983Assignee: Robert Bosch GmbHInventors: Ludwig Thome, Karl Wanner, Karlheinz Bretthauer
-
Patent number: 4394855Abstract: An ignition chamber device is described which has an elongated, rotationally symmetrical form. The wall of the ignition chamber which protrudes into the main combustion chamber of the internal combustion engine has a coaxial overflow conduit embodied by a nozzle and radially extending discharge conduits which extend into the annular chamber which surrounds the nozzle. The ignition chamber is provided with an ignition device which has a central electrode that leads from the outside into the interior and by means of this central electrode the ignition voltage is carried via a conductor path, disposed in the wall, to a wall location opposite the nozzle, from where the ignition spark can leap the gap. A heat pipe is disposed in the nozzle and includes a portion arranged in close proximity to the cylinder wall, which prevents the ignition chamber from becoming overheated and on the other hand also enables the inflowing mixture to be heated up in optimal fashion on the way to the ignition location.Type: GrantFiled: May 7, 1981Date of Patent: July 26, 1983Assignee: Robert Bosch GmbHInventors: Reinhard Latsch, Ernst Linder, Helmut Maurer, Klaus Muller, Franz Rieger
-
Patent number: 4395601Abstract: A hearing aid has a circuit board having conductor strips thereon; first plug-in elements mounted on the circuit board and being electrically connected to selective conductor strips; a plurality of circuit board-supported modular structural units; and second plug-in elements mounted on each circuit board-supported modular structural unit. The first plug-in elements cooperate with respective second plug-in elements for securing selected circuit board-supported modular structural units on the circuit board.Type: GrantFiled: September 30, 1980Date of Patent: July 26, 1983Assignee: Robert Bosch GmbHInventors: Wolfgang Kopke, Manfred Muller, Wolfgang Schmidt, Albert Eggert, Erwin Gahleitner, Gerhard Raupach
-
Patent number: 4394808Abstract: The fastener comprises the combination of a gang nail plate and a clip. The plate is driven into the gypsum board panel to attach itself thereto. The clip connects with the plate and extends beyond its side edge. A screw or nail is driven through an aperture in the protruding end of the clip, to secure the panel to a supporting stud.The gang nail plate is known. It consists of a plate having tangs protruding from the inner face thereof and a slot-forming transverse member protruding from the outer face. The clip is a flat, rectangular, spring steel plate formed with an upwardly inclined inner end, a flat outer end, and a downwardly inclined central portion. The clip's inner end is wedged into the slot to tightly connect panel, plate and clip.Type: GrantFiled: November 25, 1980Date of Patent: July 26, 1983Assignees: Robert S. Agar, Inc., Thorsell Holdings Ltd., Mudlake Holdings Ltd.Inventor: Stanley E. Thorsell
-
Patent number: 4394970Abstract: A fuel injection pump provided with an outwardly opening valve needle, on the valve needle head of which there is disposed an injection cone, tapered in the direction of the fuel flow in extension of a cylindrical section of the needle head, for the purpose of shaping the injection jet.Type: GrantFiled: February 6, 1981Date of Patent: July 26, 1983Assignee: Robert Bosch GmbHInventors: Karl Hofmann, Kurt Seifert, Josef Jungbauer
-
Patent number: 4393687Abstract: The sensor arrangement to determine oscillations arising upon knocking of a combustion engine uses at least one optical receiver, known per se, in the combustion chamber, preferably a glass rod 12 or a light guide cable of glass fibers 20. The optical receivers are either integrated in the spark plug, or connected to a pre-chamber, or inserted in the cylinder head seal.Type: GrantFiled: December 9, 1980Date of Patent: July 19, 1983Assignee: Robert Bosch GmbHInventors: Klaus Muller, Ernst Linder, Helmut Maurer
-
Patent number: 4394779Abstract: Reflected signal distortion in vehicular FM receivers is eliminated or largely suppressed by providing a plurality of antenna elements of the vehicle antenna (13, 100) with different directional characteristics, which are selectively connected to the vehicle receiver (10, 30; 104, 106) if a reflection is sensed in the reflection recognition stage (30, 106). In one embodiment (FIG. 1), the antenna (13) is subdivided into an upper and a lower portion (14, 15), about one-third down its length, the lower portion being surrounded by shielding elements (17-20) positioned about 90.degree. offset from each other, and selectively connectable to, or disconnectable from, ground or vehicle chassis in dependence on sensed distortion or reflection recognition pulses, to reduce the effective antenna length and change the directivity.Type: GrantFiled: February 6, 1981Date of Patent: July 19, 1983Assignee: Robert Bosch GmbHInventor: Jens Hansen
-
Patent number: 4393841Abstract: A device is proposed for regulating the fuel-air ratio in the operating mixture of an internal combustion engine and for monitoring the operational readiness of a .lambda. sensor controlling the regulating device and functioning by the principle of ion conduction in solid electrolytes. The .lambda. sensor has an adjustable, constant reference voltage switched opposite to it. The reference voltage approximately equals the average sensor output voltage. The level of the resultant voltage, which is established with the aid of the resultant current and has values located symmetrically with respect to the reference voltage, is monitored by comparator devices. The output signal of the comparator devices is logically processed and furnishes a signal as to the operational readiness of the sensor.Type: GrantFiled: June 24, 1981Date of Patent: July 19, 1983Assignee: Robert Bosch GmbHInventors: Ulrich Drews, Peter Werner, Werner Mohrle
-
Patent number: 4393735Abstract: A cutting plate carrier insertable in a holder of a machine tool, in particular a lathe tool. The carrier has a plane base surface and a substantially circular plan, the axis of which coincides with the axis of a central screw thread. The cutting plate carrier is provided with a recess for a polygonal cutting plate having a central bore. The cutting plate can be fixed in the recess by means of a clamping screw which can be screwed into the central screw thread. For the cutting plate, the recess has a plane supporting surface arranged parallel to the base surface and a number of bearing surfaces corresponding to the number of lateral surfaces of the cutting plate and extending parallel thereto. These bearing surfaces are arranged at the same distance (a) from the central screw thread. A second screw thread for screwing in a retaining screw inserted into the holder from below is provided parallel to the central screw thread.Type: GrantFiled: November 14, 1980Date of Patent: July 19, 1983Assignee: Komet Stahlhalter- und Werkzeugfabrik Robert Breuning GmbHInventors: Otto Eckle, Helmut Veigel
-
Patent number: 4394007Abstract: A thermal deburring chamber has interchangeable inner parts exposed to wear backed by permanent parts providing support and cooling. The inner parts fit so as to permit some expansion without transmitting excessive thermal or mechanical shock to the backing members.Type: GrantFiled: April 23, 1981Date of Patent: July 19, 1983Assignee: Robert Bosch GmbHInventor: Ernst Leisner