Abstract: A progressive internal combustion engine that improves fuel efficiency, power output, and decreases emissions having a standard four stroke operation; the intake stroke, compression stroke, power stroke, and exhaust stroke when cylinders are engaged. The progressive internal combustion engine provides for disengaging cylinders. When disengaged, a bypass valve opens, allowing the disengaged cylinder to operate free of compression. The progressive internal combustion engine may be utilized for gasoline, diesel and natural gas type engines.

Abstract: A four-stroke-cycle engine of a vehicle such as snowmobile comprises a crank case, which is dividable into a plurality of crank case components having mating surfaces, through which the crank case is assembled, a crank shaft rotatably supported in the crank case at a portion between the mating surfaces of the crank case components, and a belt driven-type continuously variable transmission mechanism operatively connected to one end of the crank shaft through a clutch belt. The continuously variable transmission mechanism includes a drive shaft, and the clutch belt is stretched around the drive shaft and the crank shaft so that a tensioning direction of the clutch belt is shifted from a line passing the mating surfaces of the crank case components at a predetermined angle therebetween.

Abstract: A first chain mechanism for transmitting the rotation of a crankshaft of an vertical engine to a camshaft and a second chain mechanism for transmitting the rotation of the crankshaft to a balancer shaft are forcibly lubricated by an oil injected by first, second and third oil jets mounted within a chain chamber. The first, second and third oil jets are disposed at locations closer to the crankshaft, the cam shaft and the balancer shaft, respectively, and the first and second oil jets are disposed inside a travel locus for a timing chain. Thus, the chain mechanisms disposed in a plane of the vertical engine can be lubricated effectively.

Abstract: In a drive arrangement for a motor vehicle, comprising an internal combustion engine and a power electronic unit for controlling an electric machine, the power electronic unit is arranged on a carrier and the carrier comprises a cooler which includes coolant passages and is mounted on the engine such that the coolant passages are in direct communication with coolant passages of a cooling circuit of the internal combustion engine.

Abstract: An oil inlet (2) for a piston (1) provided with a cooling duct (4) and installed in an internal combustion engine is designed in order to enable an improved concentration of a cooling oil stream when entering the oil inlet and an improved distribution when exiting into the cooling duct. To this end, the inner wall surface (3) of the oil inlet (2) is shaped according to a function of a one-sheeted rotating hyperboloid or of a surface-delimited torus, whereby the shape is determined according to a stream position of the cooling oil stream (7), which is produced by an oil spraying nozzle (6), relative to the cross sectional opening area (B, D) of the oil inlet.

Abstract: A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pumping air only (i.e., without fuel injection). In addition, the engine control method also provides the following features in combination with the above-described split air/lean mode: idle speed control, sensor diagnostics, air/fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also changes to combusting in all cylinders under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.

Abstract: A method of high pressure die casting in iron alloy reinforcements for main bearing scantlings in an aluminum alloy engine block for an internal combustion engine. Prior to casting, reinforcements (1) having bores (6) for main bearing screws are placed in a die cavity (21), so that cores for main bearing screws protrude into the bores in each reinforcement on one side of the reinforcement. Then the reinforcements are fixed in the die cavity by placing a cylinder liner core (25) against a surface (27) of the reinforcement on the opposite side of the reinforcement.

Abstract: The present invention relates to an engine and a method for producing the engine. The engine is constructed as follows. The engine interlockingly operates a pump (39, 139) for feeding fuel under pressure, by power of a crank shaft (1). A pair of gears (32a) and (32b) are arranged to be attached to a gear attaching shaft (32). The paired gears (32a) and (32b) are attached to the gear attaching shaft (32). At least one gear (32a) of the paired gears (32a) and (32b) constitutes a gear train (14, 114) through which the power of the crank shaft (1) is transmitted to the pump (39, 139). The method for producing the engine is constructed as follows. The method uses a common part for each of the gear trains (14) and (114) so as to produce engines of an injection pump specification and a common rail specification and alternatively manufactures the gear trains (14) and (114) through the common part.

Abstract: The present invention relates to a drip tray that minimizes spillage when the oil filter of an engine is removed. The tray is formed of a generally flat and flexible member which is bent to provide a concave upper surface for directing spilled oil away from the engine and/or vehicle components. The tray includes spring clips which serve to allow it to be removably attached to a ledge formed in the engine block just below the opening for the filter. The clips are provided with barbed portions that bite into and secure the tray on the ledge.

Abstract: A method for enabling a transition of a multiple-displacement engine to a different engine operating displacement includes determining a temperature measure correlated with an instantaneous engine oil temperature at an engine start-up, for example, a detected engine coolant temperature at engine start-up; determining a start-up delay period based on the temperature measure, as with a lookup table of calibratable values; and enabling a displacement mode transition no earlier than when the engine run time since start-up exceeds the start-up delay period.

Abstract: An oil supply means is provided to supply the center portion of a rotating part of an Oldham coupling with oil. The oil spreads from the center of rotation to the outside of the Oldham coupling and makes it possible to prevent the Oldham coupling from wearing. A recess is also provided to direct the oil supplied from an engine to the inward portion of the Oldham coupling. Accordingly, the oil is supplied all over an Oldham projection so that it is possible to prevent the frictional wearing of the Oldham projection disposed inside the Oldham coupling.

Abstract: The warm-up period of the internal combustion engine is reduced by operating an electric machine as an additional load of the combustion engine in order to obtain a specific excessive increase in the heat loss of combustion engine. To this end, the magnetizing current of the electric machine such as, for example, a starter generator with field-oriented regulation, can be regulated in order to obtain a specific decrease in the degree of efficiency of the electric machine.

Abstract: A spraying head for the humidification of the intake air of a piston engine, said spraying head comprising at least one nozzle (3) for supplying a liquid humidifying the intake air into the air intake duct or into a space leading to the air intake duct of the engine. The spraying head (1) is movable between at least two positions, a first position (FIG. 2a), in which first position the spraying head is retracted, and a second position (FIG. 2b), in which second position the spraying head is protruding.

Abstract: A thermal management system of an electrochemical engine comprises a radiator provided with a wicking mechanism, a coolant pump fluidly connected to the radiator, a water tank, and a water pump. The water tank is located in the void spaces around fuel storage tanks, and may be filled directly or with reclaimed water from a vapor by-product of the electrochemical engine. The water pump is operable to supply water from the water tank to the wicking mechanism during peak power and/or hot day conditions. Moisture in the vapor by-product may be condensed with the excess cooling capacity of the radiator under less severe cooling conditions. Under freezing conditions, exhaust or coolant from the electrochemical engine may be used to unfreeze water in the tank and wicking mechanism supply lines.

Abstract: Dual-lobed cams mounted on the intake camshaft of a diesel engine selectively retard timing of the intake valve closure. The purpose of retarding timing of the intake valves is to retard valve closing sufficiently to shorten the effective compression strokes of the pistons and thus reduce the effective compression ratio. This occurs when the intake valves remain open past piston bottom dead center for a desired period into the normal compression stroke phase of engine operation. This reduces compression pressures so that combustion temperatures are reduced and exhaust emissions, primarily NOx, may be thus limited under conditions of warmed-up engine operation. Dual-lobed cams may also be employed to retard timing of the intake valve opening to throttle admitted air during cold running conditions to effect higher in-cylinder charge temperatures to reduce hydrocarbon and white smoke emissions due to poor ignition and incomplete combustion.

Abstract: An electro-hydraulic manifold assembly for deactivation of the valves of one bank of cylinders in a V-10 engine. One solenoid valve controls flow of oil to the hydraulic valve lifter/lash adjuster of a single or first cylinder, a second valve controls flow of oil to the lifters/lash adjusters of cylinders two and five and a third valve controls oil flow to the lifters/lash adjusters for cylinders two and three by taking advantage of the common base circle position of the cams for the paired cylinders.

Abstract: A multicylinder internal combustion engine is provided with a plurality of cylinders sharing a single crankshaft. The combustion characteristics in the respective cylinders is improved by taking out part of combustion (expansion) gas produced in one of the cylinders at an earlier stage of the explosion (expansion) stroke, and then introducing the gas into another one of the cylinders in the suction or compression stroke.

Abstract: The present invention comprises an oil system for supplying and controlling oil flow in an internal combustion engine having a variable camshaft timing (VCT) device, comprising a pressurized oil supply providing lubricating oil to the engine and the variable cam timing device and an oil circuit connecting the oil pump with the VCT and a main oil gallery of the engine via a valve apparatus. The valve apparatus responds to oil pressure near the outlet of the oil pump so that oil flows to the main oil gallery when oil pressure is above a predetermined pressure. When the VCT requests oil flow, oil pressure in the system drops. If the pressure drops below the predetermined pressure, the valve apparatus causes a reduction in flow to the main gallery.

Abstract: The invention relates to a method and an arrangement for controlling a drive unit (1) including an internal combustion engine (5). The method and arrangement function to provide a switchoff of the engine (5) with less vibration. In the internal combustion engine (5), the air or a mixture of air and fuel is compressed in a combustion chamber (10) while utilizing a compressing device (15) and especially a piston. A supply of fuel is reduced with a switchoff of the engine (5). When switching off the engine (5), a relief of load of the compressing device (15) is initiated in addition to the reduction of the metering of fuel.

Abstract: A lower link of a double link type piston crank mechanism comprises a crank pin bearing housing portion that is adapted to receive a crank pin of a crankshaft and defines a first contour, an upper pin receiving bore portion that is adapted to receive an upper pin of an upper link and defines a second contour, a control pin receiving bore portion that is adapted to receive a control pin of a control link and defines a third contour, and a given portion that has therein an internally threaded bore formed in one of upper and lower half-parts of the lower link and a bored portion formed in the other of the upper and lower half-parts of the lower link, the given portion defining a fourth contour. The upper and lower half-parts are coupled by a bolt that passes through the bored portion and is engaged with the internally threaded bore.