engine (Total 426756 Patents Found)

In the case of a cooling system for an internal-combustion engine of a motor vehicle comprising a radiator and a thermostatic valve equipped with an electrically heatable expansion element, it is provided that, by means of three comparison stages which are connected in parallel, specifically a speed comparison stage, a...
A method and system for monitoring fuel delivery to an internal combustion engine having a first and second mode of operation and controlling the engine accordingly. An oxygen content of exhaust gas emitted from the engine is sensed and a corresponding oxygen content signal is generated. Air fuel ratio correction data ...
A device for suspending a turboprop engine from a structural element of an aircraft comprises a suspension pylon parallel to the longitudinal axis of the engine and fixed to the structural element, resilient connections between the engine and the pylon and an arch fixed to the pylon, and a torsion bar carried by the ar...
A novel, internal combustion engine includes a cylinder, a head closing one end of the cylinder and a piston slidably mounted in the cylinder for reciprocating motion, in the usual manner, which reciprocation is converted into rotary motion by, for example, a conventional crankshaft. The top surface of the piston, cyli...
A process for adjusting the boost pressure in an internal-combustion engine, supercharged by an exhaust-gas turbocharger with adjustable turbine diffuser, to a predetermined desired boost-pressure value dependent on the operating point. To improve the efficiency of the internal-combustion engine in the non-steady-state...
A method and an apparatus for control of engine fuel injection are characterized by detecting the state of the acceleration of the engine and also judging whether or not the engine is in a specific acceleration state, by, when the engine is judged to be in a specific state of acceleration, using such a value as a crank...
Hot gas engine units of the type having parallel cylinders in two parallel rows and containing pistons connected to two parallel crank shafts engaging a common third output shaft are juxtaposed into an assemblage of four such units. The output shaft is common to all four units and each of four crank shafts is connected...
An installation for the control of a motor vehicle drive unit which includes a reciprocating piston engine, a hydraulically actuated clutch and a transmission. A drive pedal pick-up controls the throttle valve and therewith the engine torque by way of a first characteristic curve converter while it applies a signal by ...
An engine case of a gas turbine engine is selectively coated with a thermal barrier coating to control axial clearance between rotating and stationary airfoils. The coating is applied to the thinner portions of the engine case to retard thermal expansion of these portions of the engine case during transient conditions ...
An internal combustion engine equipped with at least one exhaust gas turbocharger whose compressor is connected by way of a charging pressure line to a suction manifold of the engine and whose turbine is inserted into an exhaust gas line coming from an exhaust gas manifold. A controllable blow-off valve (waste gate) is...
Several embodiments of starting fuel supply devices for internal combustion engines wherein starting fuel is supplied to the engine in response to operation of the engine starter motor. In some embodiment, the amount of fuel supplied is varied by either a variable valve or a variable pump and in another embodiment the ...
The present invention facilitates proper control of the scavenging air and fuel-air mixture for a stratified scavenging two-cycle engine that is based on a crankcase compression/scavenging method, using any carburetor. The present invention includes a drive member, which rotates based on an accelerator operation, insta...
A rotary piston internal combustion engine of trochoidal construction which includes a housing casing with hollow spaces for a cooling media disposed between housing inner and housing outer walls, whose outer wall is provided with a cooling medium channel; a polygonal piston rotates within the housing casing and slides...
The invention relates to a swirl-chamber Diesel engine. A swirl-chamber Diesel engine is disclosed which has a piston formed with a curved groove at its crown and in which a communicating passage, between a main combustion and a swirl chamber, connects tangentially into the swirling air charge within the main combustio...
A fuel-injection engine with prechamber-torch ignition is of particular advantage in vehicular transport. In this engine, an injector nozzle and a nozzle connecting the precombustion chamber with the combustion chamber are arranged opposite to each other, a channel providing for additional communication between the pre...
In an arrangement having an air-mass meter for an internal combustion engine, the measurement place of the air-mass meter is arranged within a flow channel which substantially circularly surrounds a hollow space connected with an intake opening of the internal combustion engine, said hollow space adjoining the interior...
An engine comprising an intake port which has a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines a helical portion, an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion to the helic...
A system and method for determining an estimation of actual cam phase angle of increased accuracy are based on an observed cam phase angle derived from a cam phase sensor and a predicted cam phase angle derived from a desired or commanded cam phase angle. The estimated cam phase angle is used in the electronic control ...
Objects of a cylinder cover for diesel engine is to prevent the interference of mists between a plurality of fuel valves, thereby enhancing the spray efficiency, and to prevent troubles of burning of nozzle caused by the collision of mist sprayed from the adjacent fuel valve and increase in thermal stress caused by loc...
A device for air flow rate measurement in the air intake tube of an internal combustion engine which has at least two temperature-dependent resistors in different branches of a bridge circuit having closed-loop electric current control, and which is characterized in that the temperature-dependent resistors are embodied...
A variable compression ratio mechanism of a reciprocating engine includes at least an upper link connected at one end to a piston pin and a lower link connecting the other end of the upper link to a crankpin. At top dead center, when hypothetical connecting points between the upper and lower links are able to be suppos...
An assembly of auxiliary equipment for a water-cooled internal combustion engine having an oil pump, a water pump and an oil cooler/oil filter unit, wherein the oil pump, water pump and oil cooler/oil filter unit are provided as separate interchangeable subassemblies and are combined and interconnected into a construct...
The auxiliary combustion chamber of a four-cycle stratified-charge piston engine is divided into a primary cavity and a secondary cavity. Fuel injection produces a relatively rich mixture in the primary cavity and in the secondary cavity, and the main combustion chamber receives a relatively lean mixture. A spark plug ...
A starting aid for a combustion engine comprises a hollow elongated body and a refractory electrical heating element mounted in the body at one end thereof. Formed in said one end of the body are one or more holes through which, in use, the heating element can be exposed to the combustion mixture of an engine. In addit...
To obtain higher current yield from ion current measurable across the electrodes of a spark plug upon application of a biasing potential thereto, occurring immediately after an ignition event due to ionization of burning hydrocarbons within the combustion chamber of an internal combustion engine (ICE), the polarity of ...
A control system for an internal combustion engine equipped with a catalytic converter including an exhaust gas purifying catalyst. The control system comprises a catalyst deterioration diagnosing device for diagnosing the deterioration condition of the catalyst. The operation of the catalyst deterioration diagnosing d...
A reduced-drag, axially symmetrical missile or submarine hull with rounded, tapered bow and stern portions, and a rounded central portion tapered, for drag minimization, along a curve defined by a Fredholm equation of the second kind framed so that the pressure coefficient remains constant at all points on the central ...
An apparatus for controlling an engine speed through intermittent control of a driving time and a halt time for an engine-speed adjusting actuator (12) in accordance with the output signal of a difference detecting circuit (6) corresponding to the difference between the outputs of a desired speed computing circuit (5) ...
In the anti-pollution structure with a fuel economizing fuel feed and exhaust system for an internal combustion engine of the present invention an air blower is positively driven from the fan pulley and provides a supply of air to an exhaust heated heat exchanger with a portion of the air flowing into a plurality of ex...
An air/fuel control system for an engine (10) provides an air/fuel indicating signal linearly related to average engine air/fuel operation from a two-state exhaust gas oxygen sensor (76). Fuel delivered to the engine is modulated with a periodic or modulation signal (244). The modulation signal is offset in either a fu...
The present invention relates to a lean combustion gas engine which receives a drive output by means of supplying and combusting gas fuel in a main combustion chamber. The lean combustion engine of the present invention comprises: a main combustion chamber ( 1 ) which is surrounded by a piston ( 3 ), a cylinder ( 2 ) a...
A direct fuel injection internal combustion engine configured to reduce engine knock during high speed operation of the engine is provided. The engine comprises a cylinder head including a lower surface portion closing an upper end of a cylinder to define a combustion chamber between a piston upper surface and the cyli...