Abstract: A generator set assembly in which an engine is mounted upon a base by way of a specialized mounting component, and a related method of mounting an engine upon a base using such a specialized mounting component, are disclosed. The specialized mounting component includes a first rigid portion capable of being fixedly coupled to the engine, a second rigid portion capable of being fixedly coupled to the base, a flexible intermediate portion coupled between the first and second rigid portions that allows relative movement of the first and second rigid portions to occur in response to expansion and contraction of the engine during operation of the engine, and a further component extending between the first and second rigid portions through the flexible intermediate portion. The further component is capable of limiting relative movement of the first and second rigid portions.

Abstract: In order to appropriately control the temperature state of multiple equipment having differing management temperatures, while preventing complication of the apparatus structure, a cooling apparatus for a hybrid vehicle is provided with a seventh flow path 30g which flows coolant which has flowed only through a main flow path 22a of a radiator 22 to a water jacket 25 via a first thermostat 23 which has an induction temperature set relatively high; an eighth flow path 30h which flows coolant which has flowed through the main flow path 22a and a sub flow path 22b of the radiator 22 to the water jacket 25 via a second thermostat 24 which has an induction temperature set relatively low, and also supplies the coolant to a PDU 14 and a downverter 15; and a bypass flow path 30j which connects a fifth flow path 30e which supplies coolant discharged from the water jacket 25 to the radiator 22, and a position of the eighth flow path 30h on a downstream side of the second thermostat 24.

Abstract: A mounting structure for an engine cover includes: a protruded member which has a neck and a head with a larger diameter than the neck; and a recessed member which has an external circumferential surface small diameter section to be locked to a mounting hole of a mounting seat arranged so as to be opposed to the protruded member, and a concave holding the head of the press-fit protruded member. In the protruded member, at least a portion surrounding the concave is formed solid. The head is arranged closer to a rear surface of the engine cover than the mounting hole. A compression space, which is compressed in the case in which a collision load equal to or larger than a predetermined value is applied in a front and rear direction of the engine cover, is defined between the recessed member and the rear surface of the engine cover.

Abstract: This invention is a fuel valve used with a nitrous oxide delivery system to control supplemental fuel flow to an engine. This valve is typically a normally closed valve which is opened by application of nitrous oxide under pressure when the nitrous oxide delivery system is activated. This application of nitrous oxide pressure applies an internal force to a piston means whereby the valve is opened and supplemental fuel flows to the engine. Upon de-activation of the nitrous oxide system and subsequent decrease of nitrous oxide pressure, the valve closes and supplemental fuel flow to the engine ceases. This valve is smaller and less costly than electrical solenoid valves presently in common use.

Abstract: A spring seat is formed of an outer spring seat 10k and an inner spring seat 10j formed in a stepped-down shape so as to be positioned lower than the outer spring seat 10k, and a valve spring is formed of an outer spring 37 and an inner spring 36 that is disposed coaxially inside the outer spring 37 and that is larger in spring length than the outer spring 37.

Abstract: A resin intake manifold is provided with an integrally formed base member. The base member has a U-shaped curved distribution passage lower surface wall portion, an engine mounting flange portion formed in one end of the distribution passage lower surface wall portion, and a surge tank peripheral wall portion formed in another end and a lower surface side of the distribution passage lower surface wall portion. A resonator peripheral wall portion is integrally formed in a dead space in a lower surface side of the distribution passage lower surface wall portion and between the surge tank peripheral wall portion and the engine mounting flange portion. In accordance with the structure in which the wall itself constituting the resonator is formed by the structure member, it is possible to structure the resonator without enlarging a size of the intake manifold and without lowering the strength.

Abstract: The piston engine cooling system includes multiple pistons rotatably coupled to a crankshaft. Each piston includes a piston head defining a cooling chamber therein, and a connecting rod coupled to the piston head. The connecting rod includes a connecting rod inlet channel therein allowing oil to enter the cooling chamber, and a connecting rod outlet channel receiving oil exiting the cooling chamber. The crankshaft defines a crankshaft inlet channel allowing oil to flow through the connecting rod inlet channel, and a crankshaft outlet channel receiving oil flowing through the connecting rod outlet channel.

Abstract: A variable intake system of a vehicle includes a plenum into which an external air is flowed, an intake manifold comprising a plurality of runners connected with the plenum and respectively guiding the air of the plenum into a plurality of cylinders, and a varying unit controlling a length of the runners according to a vehicle driving condition.

Abstract: An internal combustion engine and a method of operating same are provided with direct injection of gaseous fuel into a combustion chamber and an ignition assist apparatus disposed within the combustion chamber. An ignition assist apparatus disposed within the combustion chamber comprises an electric incandescent ignitor with a sleeve disposed around the ignitor and a catalytic alloy. The catalytic alloy comprises a first catalytic element with a greater affinity for oxygen than that of a second catalytic element, and the second catalytic element having a greater affinity for the fuel than that of the first catalytic element.

Abstract: An engine drive assembly includes a camshaft gear, and a first idler gear engaged with the camshaft gear. The engine drive assembly further includes a crankshaft gear engaged with the first idler gear and a second idler gear assembly engaged with the crankshaft gear. Additionally, the engine drive assembly includes a balance shaft gear engaged with the second idler gear. The crankshaft gear drives the camshaft gear via the first idler gear and the crankshaft gear drives the balance shaft gear via the second idler gear assembly.

Abstract: A cranshaft including a continuous first or main journal and at least one eccentric second journal is disclosed. A corresponding connecting structure includes a pair of channels for receiving the journals. When the connecting structure is driven in a reciprocating fashion, it causes the crankshaft to rotate, or vice versa. A separate connecting structure may be associated with the continuous main journal and each eccentric journal forming part of the crankshaft. The connecting structure may include a single piston, or a pair of pistons in an opposed relationship, each corresponding to a different cylinder in an internal combustion engine. Alternatively, the connecting structure may include a tool, such as a saw blade, and cause it to reciprocate upon rotation of the crankshaft.

Abstract: A power generator unit incorporates a generator driven by an engine. The engine has a fuel tank. A fuel petcock is connected through fuel hoses between the fuel tank and the engine. An insulating cover surrounds the generator, the engine and the fuel tank. A control panel is positioned on the insulating cover. A fuel control lever is pivotally mounted on the control panel. The fuel control lever is connected to the fuel petcock through a flexible transmitter to open and close the fuel petcock.

Abstract: An apparatus and method for constructing a flywheel assembly is disclosed. The flywheel assembly includes a flywheel hub that is constructed to engage a crankshaft of an internal combustion engine. A ferrous ring is attached to the flywheel hub with an elastomer ring positioned therebetween. The elastomer ring isolates the ferrous ring from the flywheel hub such that the ferrous ring resonates at a frequency that substantially reduces the amplitude of the resonance of the crankshaft and flywheel. Such a construction effectively dampens the torsional resonance of the engine and provides for smoother operation.

Abstract: In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The pressure-reducing valve has a piston member that faces a chamber set downstream of a restricted passage defined inside the body of the valve in communication between the inlet connector and the outlet connector. The piston member is pushed by thrust means towards a position in which it causes opening of an open/close element (valve head) that controls the communication between said restricted passage and the inlet connector. The piston member is preferably provided with a single seal gasket that prevents leakage of gas towards the outside through the sliding coupling of the piston member within the respective guide bushing.

Abstract: A combustion type power tool having a motor suspension arrangement capable of buffering a shock applied to a motor. An integral buffer member made from an elastic material is fixed to a head cap. The buffer member includes a motor storage section in which a motor casing is stored, and a plurality of buffer segments extending radially outwardly from the motor storage section and integrally therewith. Each radially outer end portion of each buffer segment is fixed to the head cap for floatingly supporting the motor storage section.

Abstract: In a cylinder block, at least one member disposed around a bore is made of a metal matrix composite including a ceramic compact having a three-dimensional mesh structure comprised of a plurality of spherical cells and a plurality of communicating pores for allowing adjacent spherical cells to communicate with each other, with the plurality of spherical cells filled with a metal.

Abstract: An internal combustion engine is provided in which an exhaust port communicating with a combustion chamber formed in a cylinder head is formed from independent exhaust ports, which are positioned on the upstream side, and a grouped exhaust port, in which the plurality of independent exhaust ports are combined. Water supplied from a supply pump passes through a water passage of the grouped exhaust port and a water passage of the independent exhaust ports while cooling the exhaust port, and a valve seat and valve guide on the periphery of the exhaust port, which have high temperatures, thus heating the water itself and thereby recovering waste heat of the internal combustion engine. The heated water carries out heat exchange with exhaust gas in an evaporator provided in an exhaust passage and turns into high temperature, high pressure steam, which drives an expander of a Rankine cycle system.

Abstract: An air supply unit for an internal combustion engine; the air supply unit is provided a number of butterfly valves and a distributor device, the latter being provided, for each butterfly valve, with a distribution duct capable of placing an internal duct of said butterfly valve in communication with a chamber of the distributor device connected to an intake box by means of a first air duct regulated by a solenoid valve; inside the distributor device, each distribution duct is connected to the intake box by means of a corresponding second air duct regulated by a respective bypass screw and is connected to a corresponding regulation duct opening into an air intake, which is accessible from the outside of the distributor device and is normally closed by an associated removable plug.

Abstract: A heater diverter valve (20) is provided in an engine cooling system having a radiator and a circulating pump, The valve has a first inlet (31) connected to a heater so that coolant flowing through the engine and then through the heater is returned to the pump return line through the valve via the first inlet and an outlet (33). A second inlet (32) is connected to engine and transmission oil coolers so that coolant which flows from the engine supply line through the coolers is returned to the pump return line via the second inlet and the outlet. The valve includes a shuttle (24) which at lower coolant temperatures closes off the second inlet (32) to prevent coolant flow. The second inlet (32) is opened at higher temperatures when a wax type thermal actuator pushes the shuttle towards the first inlet (31).

Abstract: A mounting structure for an oil pan is disclosed. The oil pan includes an outer pan made from a metal and an inner pan made from a synthetic resin and fixed to an underside of an engine by bolts. The mounting structure includes abutments formed on outer portions of the opening edges of outer pan and the engine so as to abut against each other, respectively, bolt engagement holes formed through the outer peripheral portions of the opening edges so that the bolts are inserted through the holes respectively, an accommodation space defined between inner peripheral portions of the opening edges of the outer pan and the engine by collapsing the inner peripheral portion of the opening edge of either outer pan or engine, and a flange protruding sideways from the inner pan and loosely fitted in the accommodation space.