Abstract: In a solar radiation collector composed of a mat formed of a black foil member and a radiation pervious foil member, the two members being connected together along the outer edges of the mat and at interior locations of the mat to form an inlet and outlet and an extended flow path for a fluid heat carrier medium between the inlet and outlet, the collector further including a cover connected to the mat along opposed edges thereof and arranged to be disposed in the path of solar radiation toward the mat with an air space being defined between the mat and the cover, with the connections at interior locations of the mat serving to form parallel flow channels defining portions of the flow path and extending parallel to the opposed edges of the mat along which the cover is connected such that the dimension of the mat between the opposed edges at which the cover is connected has a first value when the mat does not contain heat carrier medium and is in a flattened state and a second value less than the first value wh

Abstract: An arrangement for curing, by electron beam irradiation, a lacquer coating carried on an article having a complex configuration. The arrangement includes an assembly formed of an electron accelerator for obtaining highly accelerated, high-energy electrons and a scanner for forming, from the electrons, a spread-out electron beam directed onto the article through an electron outlet window. The article has a first surface position inaccessible to direct electron beam radiation and a second surface portion arranged at an oblique angle with respect to the direction of the direct electron beam radiation and exposed to the direct electron beam radiation. The second surface portion is further oriented towards the first surface portion, whereby one part of the electrons impinging on the second surface portion is reflected therefrom onto the first surface portion.

Abstract: An internal combustion engine surrounded, at least in part, by a sound insulating casing. The casing is closed to the atmosphere with the exception of an inlet opening for receiving air for combustion in the engine. An air filter is coupled to the inlet opening for filtering the air passing through this opening into the interior of the casing.

Abstract: The seats of two-door passenger automobiles are provided with a tiltable backrest and a three-point safety belt. An actuating element for releasing the backrest so it can tilt is designed as a guide element for guiding the end of the safety belt associated with the shoulder of the vehicle occupant into a repository position when it is released by the occupant, which repository position is at a more convenient location than that possible without the guide element.

Abstract: An internal combustion engine comprises an exhaust driven turbocharger for generating a maximum boost pressure in the intake manifold, said pressure being so high that knocking may occur, to achieve maximum engine efficiency. A knock sensor detects engine detonation, and in response thereto causes actuation of a valve for temporarily reducing the boost pressure such that the knocking subsides.

Abstract: In an internal combustion engine including a plurality of cylinders arranged in two rows extending in the longitudinal direction of the engine at opposite sides of a longitudinal center plane of the engine, inlet and outlet valves arranged in two rows and having longitudinal axes which extend obliquely to the longitudinal center plane of the engine, and a common camshaft operatively associated with the valves and having a longitudinal axis disposed at least approximately in the longitudinal center plane of the engine, the valves are disposed and oriented in a manner such that the longitudinal axes of the valves at least approximately intersect the longitudinal axis of the camshaft, and the valves are constructed and positioned to be directly actuated by the camshaft.

Abstract: A carburetor control system for an internal combustion engine carburetor provided with a throttle valve and a shaft operating the valve, the system including a basic actuating member connected in a form-locking manner with respect to rotation, and at a defined angular position, to the throttle valve shaft, and a set of throttle valve levers having respectively different configurations but each connectable to the basic actuating member without play for enabling the carburetor valve to be controlled by a respectively different actuating structure.

Abstract: A control system for an automatic transmission of a motor vehicle having a mechanical planetary gear train with hydraulically actuatable gear shift elements, and a manual control valve for delivering a first pressurized fluid to a selected gear shift element when said lever is in one of said forward drive positions comprises a main control valve, responsive to the position of the accelerator pedal and the speed of said vehicle, for controlling the supply of the first pressurized fluid from the manual control valve to the selected element. The main control valve comprises a piston having a first piston surface, which is displaceable between a first position for connecting the supply of first pressurized fluid and a second position for interrupting the supply of first pressurized fluid thereby to disconnect the clutch. A spring acts on the piston against an accelerator pedal position-dependent second fluid pressure which acts on the first piston surface.

Abstract: This invention is an apparatus for testing the volume of a fluid medium flowing through a variable cross-section throttling point, such as the air throttle duct of a carburetor for an internal combustion engine. The fluid medium to be tested enters a primary duct of the present invention which has an input pressure regulator followed by two constant cross-section nozzles through which the fluid medium must pass. A flow branch duct which includes a second pressure regulator and the flow device intersects the primary duct for fluid transmission at a point between the two nozzles. The second pressure regulator is at the input to the test device. A pressure gauge is provided at the intersection of the main duct and branch duct. The indicated pressure is inversely proportional to the fluid flow volume through the test device.

Abstract: In apparatus for applying, by flood coating, a layer of a corrosion-inhibiting material to internal surface regions of cavities in a metal structure via passages communicating with the cavities, which apparatus includes at least one conduit having an outlet end arranged to communicate with one such passage for feeding corrosion-inhibiting material through that passage and into a cavity communicating therewith, the conduit is constituted in the region of its outlet end, by a main conduit portion extending upwardly at an angle to the vertical and arranged to convey material from a supply tank, and a pipe section which is open at both ends and is oriented with its longitudinal axis substantially vertical, the main conduit portion being connected to the pipe section at a point intermediate its ends for conveying material in an upward direction into the pipe section, the upper end of the pipe section constituting the outlet end of the conduit, and the lower end of the pipe section constituting a drain opening via

Abstract: A fuel pump assembly is designed for mounting in the interior of a vehicle fuel tank. The assembly includes a reserve tank and a fuel pump mounted within the reserve tank with a noise dampening cylindrical intermediate layer. An intake chamber is formed by a filter screen which is mounted in the reserve tank surroundng the inlet of the fuel pump. A vent channel is provided bypassing the intermediate layers and connecting the intake chamber with a vent conduit for venting gases from the intake chamber of the fuel pump.

Abstract: An internal-combustion engine and a compressor driven by the engine are combined into an integrated structural unit by providing that some of the cylinders of a cylinder block are engine cylinders while some of the cylinders of the same cylinder block are compressor cylinders. Between the engine cylinder group and the compressor cylinder group there is provided a space for receiving a slide ring seal which is mounted on a common crankshaft and which extends between and sealingly engages a collar face rotating with the crankshaft as a unit and a bearing block supporting the crankshaft.

Abstract: A fuel injection apparatus provides a rich fuel-air mixture which is injected into the intake manifold of an internal combustion engine in the vicinity of the intake ports of the cylinders. The quantity of fuel provided to the engine is regulated in accordance with the negative pressure in the engine air intake passage.

Abstract: A vehicle fuel tank is provided with a pump mounted to the bottom of the tank. The outlet line leads from the pump in a curved path to a cover on the top wall of the tank. This arrangement facilitates assembly of the tank without difficulty relating to connection of the outlet line on account of variations in overall tank dimensions.

Abstract: A tank for automobile fuel, having a back-up tank contained therein to maintain a minimum fuel level about the opening of the fuel suction line during vehicle acceleration conditions, has a back-up tank assembly and related components, such as a filter, a pump and guide walls forming funnels, all of which can be inserted and secured in the tank through an opening therein after fabrication and installation of the tank.

Abstract: An automatic transmission for a motor vehicle of the type having a mechanical planetary gear train with hydraulically actuatable gear shift elements has a gear select lever having a plurality of selectable forward drive positions, including automatic forward drive (D). A manual control valve, responsive to the position of the select lever, supplies a first pressurized hydraulic fluid to a selected gear shift element, e.g. a forward gear clutch, when the lever is in one of said forward drive positions. A control system which selectively interrupts the supply of fluid to the selected element comprises a main control valve, and a second fluid pressure acting on the main control valve to connect the supply of the first fluid to the gear shift element for engaging the element.

Abstract: A hydraulic control device for an automatic vehicle transmission includes a main pressure control valve for delivering an engine load-dependent main output pressure for operating actuating components of the vehicle transmission and a pressure-limiting valve for delivering an engine load-dependent, upwardly limited control pressure. The pressure-limiting valve includes a control piston exposed to the control pressure and to the force of a spring opposing the control pressure. The device further has an additional control valve for applying to the main pressure control valve an output pressure which is a function of a vehicle speed-dependent pressure and the control pressure and which is modulated by the control pressure and a higher main input pressure.

Abstract: An internal combustion engine has an oil pan divided into two chambers that communicate with each other. The first chamber is at a distance above the bottom of the oil pan, which is also the bottom of the second chamber. Because the bottom of the oil pan is cooled by the slip stream the oil in the two chambers are at different temperatures. Suction lines lead from each chamber to a thermostat valve that connects them to a discharge line. The thermostat valve operates such that when the engine is cold the oil supplied to the discharge line is relatively hot oil from the first chamber and when the engine is hot the relatively cool oil from the second chamber is supplied via the valve.

Abstract: An internal combustion engine having a rotating crankshaft mounted on at least one main bearing is provided with an oil pump having at least one gear surround the crankshaft and rotationally driven by the crankshaft. The pump gear surrounds the main bearing so that the main bearing and the oil pump occupy a common axial space on the crankshaft.

Abstract: An automatic clutch system is provided for use in a motor vehicle and has a control mechanism which responds to the position of the accelerator pedal and which also responds to first and second rotation speed sensing means connected to the engine shaft and the transmission shaft. In a preferred embodiment, the automatic clutch system is provided with a control mechanism which operates in a first mode when the vehicle is starting from a standing position to engage the clutch in a manner which keeps the engine in a specified speed range, which depends on accelerator lever position. The control mechanism operates in a second mode when the vehicle is shifted between gears in order to engage the clutch in a manner which provides a constant time gradient for the shaft speed difference selected in accordance with accelerator pedal position.