Abstract: A valve lift control apparatus for an internal combustion engine, characterized by a hydraulic valve lifter constructed and arranged so that the motion of the cam for driving the intake or exhaust valve in each power cylinder is transmitted through the valve lifter to the valve without intervention of any axially abutting engagement between the movable members of the valve lifter by the fluid pressures intervening between the individual movable members. The valve lift control apparatus may further comprise a fluid pressure control device for varying the fluid pressure to be supplied to a hydraulic valve lifter in relation to certain operational conditions of the engine.

Abstract: The electric drive motor of an internal combustion engine radiator cooling fan that is arranged to be energized by the output potential of a dynamoelectric generator driven by the engine is supplied with operating potential in such a manner that the average supplied drive motor power is directly proportional to engine speed while engine temperature is within the range between a predetermined first temperature and a predetermined higher second temperature and the engine is operating within a selected speed range.

Abstract: A rotary valve for an internal combustion engine is provided in the upper end of a cylinder to control intake and exhaust. A combustion chamber is formed in the valve and the valve is movable co-linearly with respect to the longitudinal axis of the cylinder under the control of a hydraulic fluid whereby the combustion forces on the valve are absorbed by the fluid and the valve can move in response to the pressures and vacuums in the cylinder. A special valve is provided for controlling the flow of the hydraulic fluid, and ducts are provided in the inlet and outlet ports with special seals engaging the rotary valve member.

Abstract: An engine balancer for a four cylinder in-line internal combustion engine. The balancer is mounted centrally under the crankshaft and driven by a drive gear adjacent the nodal point of torsional vibrations on the crankshaft. The balancer is for secondary forces on the engine and the drive reduces feed of torsional vibrations to the engine balancer from the crankshaft.

Abstract: A crankcase ventilating device for reciprocating piston internal combustion engines, in which a connecting line between the crankcase and the intake conduit is controlled by a control valve including a spring-loaded control piston, which piston is axially displaceable and has one of its end faces adapted to be actuated upon by the pressure in the crankcase whereas its other end face is adapted to be actuated upon an ambient pressure. The control piston is acted upon by the ambient pressure through a throttle opening ahead of which, when looking in the direction of flow of ambient air through the throttle opening to the control piston, there is arranged a separating chamber having an inlet opening communicating with ambient air.

Abstract: A hydraulic tappet includes a tubular cylinder sideable within a bore of a housing, a piston with a reservoir slideably mounted within the tubular cylinder, a lower piston spring biased away from the piston with the reservoir forming a pressure chamber therebetween. The reservoir being in open communication with pressure oil ports and the pressure chamber selectively being closed or open to said reservoir. The closing or opening of the pressure chamber being controlled by the lower piston and cylinder riding on tracks of a cam which control the relative position of the cylinder and lower piston.

Abstract: A system and method for controlling the temperature of the contents of storage vessels integral with an automotive transport power system, which includes a fluid-cooled internal combustion engine, is provided. A portion of the engine coolant fluid is circulated from the engine through one or more heat-exchange pipe coils, each located within a storage vessel carrying diesel fuel, compressed air, hydraulic oil, or the like, for use in automotive transport, to maintain a selected operating temperature in response to a temperature sensor. An auxiliary heating and pumping system is provided for use when the transport system is not in operation. The control system is particularly useful whenever the atmospheric temperature is high (above 90.degree. F.) or low (below 35.degree. F.).

Abstract: An internal combustion engine is run at high compression ratios by always starting the compression of the charge at sub-atmospheric pressure, thus allowing high compression ratios without excessive pressure at the end of the compression stroke. Higher compression ratios allow higher expansion ratios and increased efficiency. The method is suitable for use with both spark ignition and compression ignition internal combustion engines.

Abstract: An automatic hydraulic tappet for taking up clearance between a cam and a valve stem in an internal combustion engine with an overhead camshaft can rapidly attain its optimum operational efficiency when the engine is started, since the supply conduit, which supplies engine lubricating oil to an annular groove communicating with a chamber between two tappet members, is provided with a sump which is lower than the groove and, therefore, acts as an oil reservoir when the engine is stopped.

Abstract: The rotary valve engine of the present invention comprises an engine block containing four power cylinders and a central valve cylinder. A single valve port is located in each cylinder just above the maximum travel of the piston. This port serves alternately as an intake port and as an exhaust port. A valve spool is rotatably mounted in the valve cylinder and includes a fuel-air channel in communication with a source of fuel-air mixture and an exhaust port in communication with the atmosphere. The valve spool is rotatable to cause the fuel-air channel and the exhaust channel to move into sequential communication with the valve port of each power cylinder so as to provide charging and exhausting of the power cylinders in proper succession. Two crank shafts are provided, and are linked together by external gears to cause synchronous counter-rotation in such a manner that intake compression, power and exhaust strokes are coordinated and the inertial forces of the engine are counter balanced at all times.

Abstract: The invention relates to a distribution system for the intake and exhaust in an internal combustion engine.According to the invention, a cylinder is connected to an exhaust manifold by means of a connecting valve 10. An intake mainfold 10 opens into the manifold 14 by means of an intake valve 14 making it possible to regulate the flow of air and re-cycling of the burnt gases.The advantages attained by the invention include: achieving optimum characteristics of the flow of air and re-cycling of the burnt gases, obtaining optimum characteristics of the flow, reduction in temperature of the exhaust valve and assisting in starting and partial running.

Abstract: A cooling system for an air cooled vehicle drive having a supercharged internal combustion engine, a transmission, a hydrodynamic brake (retarder), and a plurality of heat exchangers. The media which are to be cooled are at least partially in mutual heat exchange. Cooling oil or fluid ducts for the retarder or transmission oil and/or lubricating oil of the internal combustion engine pass entirely or at least partially through a supercharger intercooler or charging air cooler. The retarder or lubricating oil is cooled in a heat exchanger which is acted upon by cooling air.

Abstract: The air inlet of the carburetor of an internal combustion engine is connected to an opening in an end wall of the housing of a fan for supplying cooling air to the engine. An inwardly inclined lip at the upstream side of the opening and an inwardly sloping surface at the downstream side of the opening deflect dirt or other solid particles in the air inwardly away from the opening so that the air supplied to the carburetor is freed of such particles. The fan housing and carburetor are directly mounted on the crank case of the engine to provide a compact construction.

Abstract: A variable lift camming apparatus for controlling the intake and exhaust valves associated with the combustion chambers of an internal combustion engine. The apparatus provides a wide range of valve lift opening movements and a wide range of valve opening duration periods and affords flexibility in valve timing. The apparatus includes a specially-contoured intake cam member and exhaust cam member, both mounted for axial sliding movement on a splined shaft, with the cam members being shifted to selected positions in response to the speed of the engine. Camming action is transmitted from the cam members to the valves by a valve operating system which includes a hydraulic cam-action transmitting member.

Abstract: An improved oiling apparatus for the camshaft lobes of an engine. The bearing portion of the camshaft is supported within a bore between an upper bearing cap member and a lower cylinder head member. Oil passage means extend from a source of pressurized oil through the upper and lower members and intersect or open to the bore at circumferentially spaced locations. The passage openings are interconnected during a portion of the camshaft rotation by a closed-ended groove in the camshaft bearing portion. A small opening or orifice in the cap member communicates with the oil passage and its axis is orientated slightly from normal to the surface of the cap member so as to direct a fine stream of oil onto an active surface of the nearby camshaft lobe. The small hole or orifice opening is drilled through the cap member from a recessed surface established substantially flat and normal to the intended axis of the orifice opening.

Abstract: A variable valve event engine has a plurality of cams with different cam profiles and can vary the operating characteristics of the valve by moving a rocker arm for selectively changing the cams in accordance with changes in the operating conditions of the engine. The engine further includes a spring urging member which causes a certain amount of energy to be retained in a spring for rapidly changing the cams. In addition, the engine has a stopper guide positioned between two adjacent cams so that the changing of the cams can be effected while the crankshaft angle of the engine is within a predetermined range.

Abstract: A reciprocating piston internal combustion engine having an engine frame with at least one cylinder bushing inserted therein which bushing with the engine frame forms a cooling water receiving chamber or jacket surrounding the cylinder bushing. One end, with an upright cylinder the upper end, of the bushing rests by means of an axial and/or radial collar on the engine frame. The cylinder bushing has operatively associated therewith a heat jacket having a wall portion thereof in contact with cooling water in the interior of the cooling water receiving chamber. The heat jacket which may be in the form of a flat annular tube or pipe extends from the region of the cooling water receiving chamber to at least near, preferably into the collar. The interior of the heat jacket is advantageously so designed, e.g. has a capillary design, that the liquid heat carrier in the heat jacket will also be able to flow against the force of gravity in the longitudinal direction of the cylinder bushing.