Abstract:
An internal combustion engine in which each cylinder has a plurality of inlet ports (17,19) and a plurality of outlet ports (14), each port being openable and closeable by means of a respective valve (12,13,11). The inlet and outlet valves (12,13,11) are disposed with their center lines substantially on opposite sides of a cylinder center plane (16) and angled generally towards said center plane (16). There are three, or possibly more, valves on at least one of said sides, arranged with two outer valves (12) separated by one, or possibly more, inner valve (13). The angle of inclination with respect to said center plane (16) for the outer valves (12) is less than or equal to the angle of inclination for the inner valve (13). The valves are preferably operated directly with a separate camshaft (18,20,15) being provided for each one or more valves inclined at the same angle.
Abstract:
A cylinder head of an internal combustion engine is formed with concavity. Two flat protruded portions are formed on the spherical surface of the concavity and their planes intersect each other at a location slightly below the vertex of the spherical surface. At the two flat protruded portions, intake and exhaust valve seats are disposed. A combustion chamber is defined by the spherical surface, the surfaces of the flat protruded portions and the piston crown.
Abstract:
Each combustion chamber of an internal combustion engine is divided into four generally equal imaginary parts by a longitudinal vertical imaginary plane parallel with the longitudinal axis of the cylinder head of the engine and a lateral vertical imaginary plane perpendicular to the longitudinal vertical imaginary plane. Two spark plugs, and intake and exhaust valves are disposed on the cylinder head wall surface defining the upper part of the combustion chamber, and located at the four generally equal imaginary parts, respectively.
Abstract:
Safety device for throttling-down the speed of an engine on locking or deterioration of the carburettor control in the acceleration period. The said device comprises a detector for the pressure at the accelerator pedal, comprising a mobile means having two positions corresponding respectively to normal functioning of the acceleration control means and locking thereof, the said means being constantly pressed in resilient fashion against a location on the pedal, and an engine throttling-down device actuated by the detector in its locking position. This device may be applied to remote-control devices.
Abstract:
An apparatus is provided for insuring closure of a throttle valve in a suction passage in an internal combustion engine when an acceleration member such as an acceleration pedal or the like is released. The throttle valve is urged by a spring to its closed position and a normally closed clutch is incorporated in an operation mechanism which couples the throttle valve and the acceleration pedal. The clutch is opened by an electro magnet when both a first detecting switch is closed upon release of the acceleration pedal and a second detecting switch is closed when the throttle valve remains in its open position.
Abstract:
Drive chain for driving shafts and wheels which are arranged with axes parallel to each other in a housing consisting of light alloy material such as magnesium alloy. The drive chain is especially useful for driving camshafts of internal combustion engines and consists of individual, movably assembled members such as side straps and rollers supported on bolts which are connected with each other by the side straps. The side straps consist of a material which has a temperature-expansion coefficient at least nearly equal to that of the housing material.
Abstract:
A valve lifter for an internal combustion engine embodying a screw member rotated by a thermally responsive control element for holding predetermined clearance in a valve train substantially constant over a relatively wide temperature gradient and including means for positively conducting pressurized lubricant to the entire train.
Abstract:
A sealing cone adapted to be secured on an indicating tap of a diesel engine has a central passage communicating with a diaphragm mounted in a housing. Another housing includes a forcemeasuring device such as a transducer. Pressure forces are transmitted from the diaphragm to the transducer by a central cylinder, and counter-acting tensile forces by a ring surrounding the cylinder and connected by sets of low-heat-conducting screws to both housings, the screws of the two sets being symmetrically spaced from each other around the ring. The cylinder and ring are formed of rigid thermally insulating material. The transducer is thus protected from the heat of the diesel engine.
Abstract:
A control system for limiting overload and overrunning of an internal-combustion engine having diaphragm-operated intake sectional area control means from the vacuum of the air intake systems employs a solenoid valve operating when the r.p.m. of the engine or the power thereof exceeds a predetermined limit to terminate operation of the diaphragm.