Abstract: A noise damping device is proposed for the reduction and smoothing out of compressional vibrations of a conveying medium, especially fuel conveyed by fuel feed pumps, which device serves for diminishing the continuous pressure vibrations by means of suitable damping installations in the fuel circulation. The noise damping device comprises arrangements comprising locations of discontinuity, cross-sectional changes, changes in the flow path as well as including at least one wall section which yields in an elastically resilient manner, whereby a simultaneous dynamic volume change is likewise produced. Such pressure vibration damping devices can be arranged at any desired point in the fuel circulation, preferably in the zone of the pressure connection of the fuel feed pump, and can have the form of barometric bellows, accordion bellows, corrugated hoses, and the like.
Abstract: A work vehicle having an oil cooling path through which a working oil within the transmission housing for the hydraulically driven transmission means is circulated to the transmission case through the cooler.There is disposed a bypass adapted to return the working oil directly to the transmission case from said transmission housing without passing through the cooler when the pressure in said transmission housing exceeds a predetermined value.
Abstract: A control apparatus for a fuel supply system for mixture-compressing, externally ignited internal combustion engines is proposed, which serves to interrupt the fuel supply to the engine during overrunning. The control apparatus comprises sensors which furnish signals according to the attitude of the throttle valve, as well as the rpm of the internal combustion engine and the temperature of a catalytic converter situated in the exhaust pipe, and further comprises means for the evaluation of these signals as well as for the interruption of the fuel supply to the internal combustion engine and the introduction of supplementary air during overrunning at catalytic converter temperatures above the proper operating temperature for that device.
Abstract: A gatherer device for fruits, nuts, etc., which is made of wire shaped to form a basket which includes tines that are shaped to guide the fruit into the basket as the device is pushed along the ground in the direction of the fruit. The wires are connected together side-by-side on their upper length and the wires are shaped and spaced such that the fruit does not fall from the basket as the fruit is gathered.
Abstract: An internal combustion engine in which some of the combustion chamber walls are kept at temperatures which are higher than the temperature of the remaining parts of the combustion chamber. The temperature control of the selected portions of the combustion chamber is performed by heat pipes which lie adjacent to thin combustion chamber walls and which transfer heat from these walls to other parts of the engine which are adjacent to coolant channels. The presence of the heat pipe insures a relatively low thermal inertia of the adjacent combustion chamber walls, permitting their rapid heating after cold starting and the presence of the heat pipe prevents excessive temperatures due to the ability to carry away heat from these parts of the combustion chamber at higher temperatures. The temperature-controlled combustion chamber walls may be provided in auxiliary combustion chambers, prechambers or antechambers.
Abstract: A method and an apparatus for generating fuel metering control pulse which may be used to control the operation of injection systems, carburetors, or any other controllable fuel metering mechanism. The system includes two signal generators one of which continually generates a signal related to engine conditions while the other is engaged in deriving therefrom a fuel metering control pulse of appropriate length. The duration of the pulses may be obtained by the charging and discharging constant of control capacitors or by a process of numerical countdown of digital data.
Type:
Grant
Filed:
April 2, 1979
Date of Patent:
March 23, 1982
Assignee:
Robert Bosch GmbH
Inventors:
Hans Schnurle, Ulrich Drews, Peter Werner
Abstract: A ski pole comprising a tubular stem and a bracing disc especially shaped for easy mounting thereon. The bracing disc is provided with a stud introduced into the tubular stem and a pin is forced axially through and expanding the stud. The protruding portion of the pin may be enveloped by a sheath and constituting the tip of the ski pole.
Abstract: A regulator apparatus for a fuel injection pump which includes a conventional regulator lever, together with a linear magnet which engages this lever either directly or indirectly.
Abstract: A control apparatus for a fuel injection pump of a diesel combustion engine is proposed, in which the fuel delivery adjustment element of the injection pump is moved to its zero adjustment position when the engine cuts off, is held in this position (roll-start lock), and can reach its start-position only in accordance with standard starting procedure. The control apparatus includes a hydraulically actuated correcting element, that can be placed under fuel delivery pump pressure by means of a directional control valve for displacing the fuel delivery adjustment element into its zero adjustment position. The correcting element is locked by a slide lock, likewise controlled by delivery pump pressure. The slide lock is brought into its blocking position when the delivery pump pressure drops sufficiently, and retracted only when the driver actuates the directional control valve and the delivery pump pressure increases when the engine starts.
Abstract: A brake force amplifier for the brake system of a motor vehicle, whose control valve is activated by means of a travel-limiting flexible element.The travel-limiting flexible element is arranged outside of the amplifier, decentralized from the control valve. This arrangement saves space, and is easily disconnected should the auxiliary force fail. This is accomplished by engaging an hydraulic circuit, which is intended to transfer the motion of the travel limiting flexible element, with the assistance of a disengagement device. The disengagement device has a piston, which is subject to spring pressure on one side and to reservoir pressure on the other side and which eliminates the effect of the travel-limiting flexible element with the aid of a piston rod.
Abstract: A fuel injection pump in which the beginning of the fuel injection is set to "early" during the warming-up of the engine by means of an adjustable piston. The adjustment occurs by shifting the adjustable piston by a control member acting through an adjusting member.
Type:
Grant
Filed:
November 1, 1979
Date of Patent:
March 9, 1982
Assignee:
Robert Bosch GmbH
Inventors:
Franz Eheim, Karl Konrath, Manfred Schwarz, Otmar Weiss
Abstract: A membrane which serves as the movable valve member of a valve such as a distribution and apportionment valve of a fuel injection system for internal combustion engines, the membrane having at least one area intended for clamping purposes, at least one area of elasticity, and at least one control area, whereby the control area has a greater thickness than does the elastic area. The clamping area of the membrane may be provided with a photographic lacquer layer (negative lacquer) which serves as a sealing means and as protection against corrosion between the membrane and the valve housing. The invention further includes a method for fabricating the membrane onto which an adherent metallic layer is applied either by galvanic means or in a chemical bath.
Abstract: An apparatus for the measurement of the mass of a flowing medium, such as for the measurement of the induced air mass in internal combustion engines which includes at least one temperature-dependent resistor film disposed in the flow of the medium, the temperature and/or resistance of the film being governed in accordance with the mass of the medium wherein the manipulated variable is a standard for the mass of the medium. The temperature-dependent resistor film is disposed in a region of stabilized flow in the flow cross section and, to this end, the temperature-dependent resistor film may be disposed either upstream of the narrowest cross section of a nozzle-like constriction wherein the pressure steadily decreases or in a gap having a laminar gap flow.
Abstract: A wall mounted enclosure device for a sanitary brush having a telescopically extensible handle and a rigid head at one end with its bristle face inclined with respect to the axis of said handle. A flange surrounds a portion of the handle adjoining said head adapted to suspend said brush from a bracket on the door of said enclosure device with respect to the pivotal mountings of the door thereof so as to maintain said door in closed position over said sanitary brush when not in use and to expose the brush for use.
Abstract: What follows is a description of a composite aerodynamic rotor blade assembly which has been optimized from the standpoint of both fabrication cost and structural integrity. The rotor blade is fabricated using fewer overall assemblies to optimize cost and includes an aft fairing structure which is uniquely characterized in that it includes not only the typical elements of an aft fairing structure of the composite blade, but the spar heel as well. In assembly the skin members of the aft fairing structure are secured between the spar heel and the cap member of the assembly. This insures a fail-safe design and in this way the skin members are enabled to carry load effectively. The deicing blanket is assembled with the spar and cap member so that its supporting structural material serves as a load carrying member. Also, the spar, the inboard termination of the cap member, and the spar heel together form the root end of the rotor blade into which the torsion splices are formed.