Abstract: A vehicle and drive unit therefor including a transversely disposed engine located in an engine compartment. The cylinders are inclined to the rear from a vertical plane at an acute angle and the engine crankshaft drives an accessory shaft that rotates in a plane disposed at an acute angle to the vertical and forwardly of the cylinder axis and at an acute angle to the cylinder axis. Accessories are driven from this accessory shaft as are the front wheel axles which lie on the opposite side of the plane containing the cylinder axis from the output shaft axis. The accessory drive is disposed inwardly of the ends of the engine so as to provide a compact body and the engine body is recessed to receive the accessory drive so as to minimize the distance between the accessory shaft and the engine crankshaft.

Abstract: A single cylinder air-cooled internal combustion engine has a bracket which is mounted to the engine encircling the crankshaft between the flywheel and the crankcase. A plurality of engine accessories are mounted to the bracket as a subassembly prior to assembly of the bracket to the engine. The engine accessories include a safety brake, a throttle control lever, an electric starter, an alternator, a finger guard and a cooling air baffle.

Abstract: An internal combustion engine comprising an engine block including a cylinder and a combustion air passage for supplying combustion air to the cylinder, an air silencer communicating with the combustion air passage, and an elastic connector for securing the air silencer to the engine block.

Abstract: Disclosed herein is an engine comprising an engine block, a crankcase cover mounted on the engine block and including opposite first and second sides, a first carburetor mounted on the block at the first side of the crankcase cover, a second carburetor mounted on the block at the second side of the crankcase cover, a bracket supported by the crankcase cover intermediate the first and second carburetors, and a fuel supply component mounted on the bracket and comprising one of a fuel pump, an oil pump, a combined fuel and oil pump, a fuel vapor separator, a fuel vapor pump, a fuel filter, a primer fuel control valve, and a vacuum switch.

Abstract: Disclosed herein is an internal combustion engine comprising a carburetor having an air induction passage, a valve member located in the air induction passage and moveable between open and closed positions, and a fuel supply valve member moveable between open and closed positions, an air intake silencer communicating with the air induction passage and including spaced exterior brackets including aligned openings, an actuating member received in and support by the aligned openings for rotary and axial movement relative thereto, connected to one of the valve members for actuation of the one member between the open and closed positions in response to axial movement of the actuating member, and connected to the other of the valve members for actuation of the other member between the open and closed positions in response to rotary movement of the actuating member.

Abstract: A DOHC engine comprises a cylinder block, and a chain which drivingly interconnects a crankshaft and two camshafts. A water pump mounting lug is integrally formed with the cylinder block, and located at the upper portion of a front wall of the cylinder block and below one of the two camshafts. The chain has a loose side defined by that portion thereof which runs between the crankshaft and the one of the camshafts. A movable chain guide bows the loose side of the chain inwardly to define a mounting site of a water pump.

Abstract: A brace connecting a generator to an internal combustion engine has spherical and cup shaped elements at its attaching ends for facilitating attachment of these components in various relative positions.

Abstract: A cylinder block includes two cylinder banks angularly disposed to each other, and two cylinder heads are mounted on the two cylinder banks, respectively. Two idler gears are rotatably mounted to the two cylinder banks, respectively, and a crankshaft is rotatably mounted to the cylinder block. A chain drivingly interconnects the two idler gears and the crankshaft. The chain, the idler gears, and the crankshaft cooperate with each other to define a predetermined space adjacent to the cylinder block, wherein an auxiliary device is mounted.

Abstract: An alternator for motor vehicles having a mounting structure suitable for mounting to an engine, in which at least one mounting projecting section having U-grooves in a direction perpendicular to the direction of the axis of rotation is formed integral with each of the front and rear brackets constituting a housing so as to enable mounting the alternator to an engine. The alternator thus constituted has a simple, low-cost mounting structure and improved strength such as vibration resistance.

Abstract: An apparatus for reducing or eliminating the occurrence of vapor lock in two-cycle engines isolates the fuel pump from the heat radiating engine block in a two-cycle, air cooled engine spaces the fuel pump from the carburetor and injects the fuel directly against the carburetor inlet valve. Application of an additional cooling means including airflow and liquid fuel means, may be provided in order to convey heat away from the fuel pump and therefore maintain the fuel pump temperature below the point at which vaporation pressure exceeds the impulse pressure generated from the power head. The fuel pump is removed from the hot carburetor as part of the vapor lock prevention system.

Abstract: The present invention relates to a device for fastening a first part to a second part, the two parts having an assembling backlash between them, this device comprising a bush with inner and outer threads with opposite pitches, interposed between the threads of a fastening screw and an inside thread of the second part matching with the outer thread of the bush.

Abstract: In the representative sound-insulating engine mounts described in the specification, a resilient pad of elastomeric material is disposed between pan-shaped members having side walls which are spaced from the periphery of the resilient pad in the absence of dynamic loads so as to provide resilient stops for the pad deformation.

Abstract: Herein disclosed is a power plant structure which generally includes an engine part and a transmission part. In order to increase the rigidity of the power plant structure, the cylinder block of the engine is tightly connected by bolts to a mounting portion integrally formed on a transmission case. For more assured rigidity, a ladder beam structure is tightly disposed between the cylinder block and the mounting portion.

Abstract: An ignition distributor includes a distributor housing having a cup-shaped cylindrical partition wall accommodated in an annular recess of a driven pulley mounted on an end portion of a camshaft, the partition wall having an annular bottom portion arranged in the annular recess to provide a circular opening, a distributor rotor of generally cylindrical shape fixed to the end portion of the camshaft and housed within the partition wall, the rotor having an annular flange formed at its outer periphery with an annular rim which is opposed to the annular bottom portion of the partition wall to form a first annular passage, and a distributor cap coupled with an open end of the partition wall to cover the rotor, the cap having a cylindrical extension wall extending therefrom into the interior of the partition wall and being arranged concentrically with the partition wall to form an annular space in communication with the first annular passage and a rotor space in which the rotor is arranged.

Abstract: An engine cylinder block structure includes: a cylinder block integrally formed to include skirts projecting downwardly from both sides of the lower surface of the cylinder block; an oil pan attached to lower surfaces of both skirts of the cylinder block, the oil pan having a deep first portion on a front side and a shallow second portion on a rear side, the first and second portions being connected to each other; flanges integrally formed on lower ends of the skirts for having the oil pan attached thereto; and reinforcing mechanism for reinforcing the strength of both skirts.

Abstract: A V-shaped engine has a pair of cylinder banks with a V-shaped space defined therebetween, a crank pulley disposed on one end thereof in the direction of a crankshaft, and a transmission case on an opposite end thereof. An intake manifold with a throttle body assembled thereon is disposed in the V-shaped space and positioned with the throttle body disposed over the transmission case, providing a space close to the crank pulley. At least one accessory actuatable by the crank pulley is disposed in the last-mentioned space. The accessory is mounted on a bracket mounted on the cylinder banks. An engine mount bracket for supporting the engine on a vehicle frame projects integrally from the bracket.

Abstract: A mounting system for a vehicle engine including mounting units located at the opposite sides of the engine output shaft. The mounting unit includes a hydraulic chamber filled with hydraulic liquid. The hydraulic chamber of one unit is connected with that of the other unit through a conduit which may be provided with a variable orifice or a valve. The variable orifice or the valve is operated so that the fluid flow through the conduit is restricted or cut-off under a specific rolling frequency range.

Abstract: A hydraulic pump is mounted on a bracket which, in turn, is mounted on a frame secured to a marine engine. The mounting of the frame on the engine allows for substantially universal swiveling and translation adjustment to position a rearward-projecting stub shaft of the frame stationarily and in coaxial alignment with the forward-projecting front end portion of the engine crankshaft. A cogwheel or pulley is rotatably mounted on the stub shaft and is joined to the engine crankshaft by a flexible coupling. Such cogwheel or pulley drives a belt which powers the driven input wheel or pulley of the pump. The substantial tension of the belt is applied to the stub shaft of the frame without transmission to the engine crankshaft, and the coupling of the pump to the engine is not effected by vibration, twisting or fore-and-aft surging of the engine in response to developed torque and thrust.

Abstract: An air cleaner case is installed by an attachment device on the back of an intake manifold having a plurality of branch tubes extending forwardly toward the intake ports, respectively, of an engine cylinder head. The attachment device includes upper and lower attachment arms on the air cleaner case extending substantially horizontally and upper and lower seats on the intake manifold. The upper and lower attachment arms are substantially vertically detachably coupled to the upper and lower seats, respectively. The lower attachment arms are coupled to the lower seats by vertical pins mounted on the lower seats and the upper attachment arms are coupled to the upper seats by vertical bolts. The air cleaner case can easily be attached and detached vertically even in the limited space surrounding the air cleaner case behind the intake manifold.

Abstract: An improved fuel container support system for a combustion engine including an engine support frame having a moveable fuel container support shelf mounted thereon, the shelf being structured to move from a non-operating to an operational position to hold a fuel container at an angle to the horizontal for efficient fuel flow operation during engine running with the container positioned away from the engine during such running.

Abstract: A cylinder block construction of an engine having a pair of balancer shafts provided at its opposite sides, in which the cylinder block is formed with a pair of bearing boss portions for supporting the balancer shafts, respectively. The cylinder block construction includes a pair of mounting portions for securing a pair of engine mounts to the cylinder block, respectively, which are, respectively, provided, in the vicinity of the bearing boss portions, at opposite side walls of the cylinder block so as to be integrally formed with the bearing boss portions.

Abstract: A friction drive arrangement for driving automotive and truck accessories from the automotive/truck engine comprising a drive wheel, with an outer rim surface, for mounting on an output shaft of the engine and one or more driven wheels for driving the accessories and having portions thereof mating frictionally with the drive wheel outer rim surface.

Abstract: A structure for mounting, on an engine body, a plurality of auxiliaries such as an alternator, a compressor for an air conditioner, a power steering device, and the like, which are driven via respective belts by a crank pulley of the engine of the vehicle. The auxiliaries are fixed on a single structured bracket at one sides thereof in multistages. The adjacent auxiliaries are rigidly connected to each other by means of respective brackets at other sides thereof opposite from the single structured bracket.

Abstract: An engine mounting arrangement is disclosed including a rubber-metal component and a vibration attenuating device that is comprised of a lever arm provided with a mass on its free end. The low frequency as well as the high frequency oscillations are damped thereby without establishing a noise bridge between the engine and the vehicle by the lever arm extending between elastomeric members and bearing in the axial direction of the engine mounting arrangement against these elastomeric members.

Abstract: A front and rear wheel drive vehicle having straddle-type seating. A power train is located beneath the seat and between the footpegs of the vehicle. The engine employs parallel output shafts located on either side of the crankshaft to drive power transmission means to the front and rear axles. A speed change mechanism is contained within the engine case along with the output shafts and includes a first transmission shaft between the crankshaft and one of the output shafts. In one embodiment, the cylinder block of the engine is illustrated as being inclined toward the speed change transmission such that the cylinder block, cylinder head and head cover do not extend laterally outwardly beyond the engine case. To employ both output shafts, sprockets are arranged on each shaft with a coupling chain. The orientation of the output shafts provides for a narrower engine profile.

Abstract: A distributor for a spark ignition internal combustion engine is driven via a drive spindle 3 which is held via a resilient bush 4 in a drilling in the end of a camshaft 1 of the engine which operates the usual valve gear. Advance and retard are performed electronically. The resilient bush protects the drive spindle 3 and rotor from vibrations of the camshaft.

Abstract: A "U"-shaped polar bracket mounted on an automotive engine block has two curved slots at each end. A polar extension having two legs of unequal length is attached to the polar bracket. An automotive accessory is connected to the apex or polar point of the polar extension. This combination of elements allows great flexibility in the mounting position of the automotive accessory.

Abstract: An ignition distributor is arranged so that its axis is aligned with the central longitudinal axis of a camshaft. A generally cylindrical cam is attached to an end of the camshaft for driving a rotor of the ignition distributor. A flange on the cam extends transversely to the central longitudinal axis of the camshaft and is aligned with an extension of the rotor. Screws are provided to connect the flange and the extension. The screws extend in parallel to the longitudinal central axis of the camshaft and are distributed around the flange to balance the distribution of mass around the central axis. The cylindrical cam fits within an opening in a housing which is only slightly larger than the outside diameter of the cam to reduce the entry of dust into the distributor.

Abstract: A camshaft driving apparatus for an internal combustion engine including cam gears rotatably supported by respective camshafts, a timing gear rotatably supported by a crankshaft, and a gear train having at least two intermediate gears cooperatively engaged with one another for cooperatively engaging the cam gears with the timing gear therethrough. The at least two intermediate gears are rotatably mounted to a holding member, thereby forming a single unit before mounting the intermediate gears to an engine body. The unit is thereafter mounted to the body by clamping the holding unit to the body.

Abstract: An improved, compact auxiliary mechanism driving device in a V-type, overhead-camshaft engine in which a driving section for engine auxiliary mechanism is mounted on a camshaft without increasing the overall size of the engine by utilizing a vacant or unused space(s) on the camshafts peculiar to such an overhead-camshaft engine. A pair of first and second cylinder banks are arranged in V-shape and have a first and a second cylinder head, respectively. The cylinders of the first bank are displaced from the cylinders of the second bank in the axial direction of the camshaft. A first camshaft having first valve-operating cams for the first cylinders is provided on the first cylinder head of the first cylinders. A second camshaft having second valve-operating cams for the second cylinders is provided on the second cylinder head of the second cylinders.

Abstract: In an automotive vehicle having an internal combustion engine, an arrangement of the auxiliary equipment units comprises an alternator and a compressor grouped together and driven in rotation at the same speed from the engine by common drive means. The alternator and the compressor are fastened together and centered coaxially with one another by an intermediate part by means of which they are also mounted on the side of the engine.

Abstract: A power unit particularly adapted to a three-wheel vehicle which employs a single cylinder, two-stroke engine driving a centrifugal clutch, a gear train and a drive shaft to one wheel. The drive shaft is rotatably mounted in a portion of the engine housing and is also rotatably mounted within a coaxial bore through one end of the crankshaft. A spaced rear wheel on the other side of the engine is freewheeling. To accommodate the asymmetric power to one rear wheel, the drive shaft, the crankshaft and the engine cylinder are canted from alignment with the centerline of the vehicle to provide the appropriate toe-in.

Abstract: An air funnel assembly extending between an air inlet assembly and one or more carburetors on a two-wheeled vehicle. The air funnel assembly includes an elastic air funnel and an air funnel cover. The funnel and funnel cover are affixed to the carburetor or carburetors and extend in spaced relation towards the air inlet assembly. The components may be fixed to the carburetors by means of one or more clamp rings, may be additionally joined together by projections from the elastic funnel which are retained in holes in the rigid cover. A radially interlocking arrangement may be employed at the inlet from the air inlet assembly to retain the funnel thereto.

Abstract: A first speed detecting means detects whether the engine speed has fallen below a prescribed level. A second speed detecting means detects whether an accelerator pedal angle has been changed at a speed higher than a predetermined value. A third speed detecting means is provided to detect whether the speed of the automobile is equal to, or higher than, a predetermined value. Upon receipt of the output signals from the first, second and third speed detecting means, a solenoid drive circuit drives engine vibration absorbers for a predetermined period of time. More specifically, the circuit energizes solenoids for this period. The solenoids rotate the thus rotary valves of the absorbers, thus closing the orifices of the absorbers. As a result, the absorbers generate great forces damping the back-and-forth motion of the engine. The vibrations of the engine are therefore not transmitted to the chassis of the automobile.

Abstract: A internal combustion engine lubrication pump assembly (95) having a mounting frame (104) which is received by an aperture (104a) in a gear plate (10) and driven by a radial gear (22)of the engine accessory gear train and further including a method and apparatus for precisely positioning the gear plate (10) on the block (12) of the engine accessory drive gear train (22, 24, 26, 28, 30, 32, 34 and 36) whereby the precise positioning of the gear plate (10) results in the precise alignment of the gears mounted thereon. The present invention achieves this result by utilizing the shafts (56 and 58) of two of the gears (34 and 36) in the gear train as primary and secondary positioning means.

Abstract: A connecting-rod system particularly for mowers, wherein a crank, supporting a couple of rods, is linked to the driving shaft by means of a clamp fastened to said shaft by means of a threaded ring, and wherein the mutual positioning of crank and clamp is achieved by means of a key.

Abstract: An intake pipe is mounted in a floating manner on an intake manifold by mounting and holding member. The mounting and holding member comprise a resilient mounting ring or coil spring spanning a lower concave side of the intake pipe for thereby supporting the intake pipe in a floating manner and a resilient fastening band or a coil springs fastening the intake pipe to the intake manifold.

Abstract: An auxiliary power output device for an internal combustion engine comprises a ring gear fixed to a crank shaft of an internal combustion engine and interlocked with a pinion of a starter motor, a pulley attached to an auxiliary output shaft and a belt wound between the pulley and the ring gear.

Abstract: A cylinder head for an internal combustion engine is constructed with a camshaft holder assembly. The camshaft holder assembly consists of several cylindrical recesses which form the camshaft support bearing, the camshaft positioning guide, and an accommodating chamber. Lubricant flows through the camshaft support bearing and accumulates in the accommodating chamber, which encloses a coupling between the camshaft and the drive shaft of an auxiliary device, for lubricating and cooling the coupling. The lubricant is maintained at a relatively constant level in the accommodating chamber by an inclined flow passage to the lubricant return passage in the cylinder head and the splashing action of the coupling within the accommodating chamber.

Abstract: A longitudinal housing wall for an internal combustion engine is formed with an elongate channel defined by two confronting parallel surfaces. A rod extends in said channel over at least two-thirds of the length of said channel and is coupled to said wall so as to be resiliently movable relative to said wall and capable of absorbing energy of flexural vibration at a predetermined frequency from said wall.

Abstract: Crankshaft noise from an internal combustion engine is reduced by the known step of using a crankshaft damper pulley 10 on the front end of the crankshaft. This damper pulley has a damper ring 16 interposed between the hub and the rim of the pulley. Noise is further reduced by fitting a plug 20 to the front of the engine to cover the area within the ring 16 of the damper pulley. The plug 20 is preferably of neoprene rubber.

Abstract: An oil cooler is mounted to a radiator so as to be in series therewith. The oil cooler is provided with a framework having four holes therein arranged in a rectangular pattern. In one embodiment, the holes are transverse, with a lower pair being axially aligned, and in another embodiment the holes are vertical, with the pairs of holes at the opposite transverse sides being vertically aligned. Mounted on the radiator are four spring metal straps which respectively carry pins received in an associated hole. In the one embodiment, removal of the upper pair of pins permits the cooler to pivot about the lower pair while, in the other embodiment, removal of the pair of pins at one side of the cooler will permit the cooler to pivot about the pins at the other side.

Abstract: An auxiliary device, for example a water pump, is arranged on a housing wall of an internal combustion engine in such a way that the device is mountable in a simple manner. For this purpose, a drive gear with a pin transversely penetrating a drive shaft is tightened, from one side, and the pump wheel, attached in the drive shaft by means of a screw, is tightened from the other side against the inner race of a ball bearing, the outer race of which is fixed in the housing wall of the internal combustion engine.

Abstract: A liquid propane gas fuel system includes a propane fuel tank. A two stage pressure regulator defined by a housing with a fuel inlet and a fuel outlet is also included. A first fuel conduit extends from an outlet in the fuel tank to the fuel inlet in the pressure regulator. The system supplies fuel to an engine that includes an exhaust gas manifold. A thermoconductive mounting bracket is secured to the housing of the pressure regulator and manifold to transmit heat from the manifold to the regulator in proportion to the load imposed on the engine. A chokeless carburetor is also included in the system and is in fluid communication through a second fuel conduit with the outlet of the pressure regulator. In an alternative embodiment, a heat exchanger is included in the first fuel conduit. In a second alternative embodiment, an electric heating element is positioned within the housing of the pressure regulator.

Abstract: A bracket for mounting a carburetor, a low pressure gas converter, and a fuel filter on an engine. The bracket has a flange fastened in a sandwiched position between the carburetor and the intake manifold.

Abstract: A V-type overhead-camshaft engine comprises first and second banks arranged in V-shape, each bank having a row of a plurality of cylinders extending axially between front and rear ends thereof. The row of the cylinders in the first bank starts from a location spaced apart from the front end of the engine, and terminates at a location near the rear end of the same. The row of the cylinders in the second bank starts from a location near the front end of the engine and terminates at a location spaced apart from the rear end of the same. Each bank is provided with a cylinder head assembly which generally comprises a cylinder head and a head cover, and supports a camshaft.

Abstract: When detecting means detects that changes have been achieved by an automatic transmission in lever position and/or gear position, a solenoid drive circuit is actuated for a predetermined period of time to drive shock absorbers which control the rolling of the engine of an automobile. More specifically, when it is actuated, the solenoid drive circuit energizes solenoids, whereby the rotary valves of the shock absorbers are rotated for said period. As a result, one of the two orifices of either shock absorber is closed, thus increasing the force damping the vibrations of the engine. Hence, the vibrations caused by a large torque of the engine are not transmitted to the chassis of the automobile.

Abstract: A reciprocating internal combustion engine comprises an engine block, which includes the cylinders, cylinder heads, pistons, connecting rods, a crankshaft and main bearings for the crankshaft. The engine block is oiltightly mounted in an outer pan and is held in said outer pan by supporting elements which are provided at both end faces of the engine block and insulate against a transmission of structure-borne sound. The engine block is sealed at the top edge portion of the outer pan only by an oil seal. The supporting elements are coaxial to the crankshaft. To minimize the transmission of vibration to the supporting elements which insulate against the transmission of structure-borne sound, said supporting elements are connected to the engine block by holders, which extend below the cylinders and are secured to the engine block approximately in the middle of the region traversed by the piston heads between their top and bottom dead center positions.

Abstract: A sealing device for a timing belt cover and an engine mount bracket comprises a rib formed on said engine mount bracket and a gasket having a lip of C-shaped section and a fixed portion continuous from said lip. The fixed portion of the gasket is attached to a portion of the timing belt cover surrounding an opening provided in said timing belt cover and said lip of C-shaped section of the gasket is contact with said rib of the engine mount bracket. Since the gasket is made of an elastic material other than sponge, e.g. rubber, it does not undergo a permanent deformation and causes no gap between said lip and said rib. Besides, since said lip of C-shaped section is easily deformed, there is no likelihood of an excessive load being applied to said timing belt cover.

Abstract: An air conditioner refrigerant compressor driving and mounting apparatus for a helicopter of the type having a free rotating power output shaft, which rotates within a power take-off pad includes a compressor drive assembly drive shaft housing supported by the power take-off pad. A compressor drive assembly drive shaft is connected with the engine power output shaft, extends linearly through the compressor drive assembly housing, and is supported therein by bearing means. A compressor drive assembly drive shaft pulley is attached to the compressor drive assembly drive shaft and rotated thereby. Bracket means are provided for mounting an air conditioner refrigerant compressor on an outer surface of the compressor drive assembly housing such that a compressor drive shaft for driving the compressor is generally parallel with the compressor drive assembly drive shaft. A compressor pulley is attached to the compressor drive shaft and generally aligned with the compressor drive assembly drive shaft pulley.