摘要:
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.
摘要:
The present invention is directed to a V-type multi-cylinder internal combustion engine mounted on the middle portion of a vehicle body having front and rear wheels. The internal combustion engine has a supercharger comprising an exhaust turbine provided in an exhaust passage of the engine and a compressor provided in an intake passage of the engine and arranged to be driven by the turbine. In the present invention, an expansion chamber is interposed in the intake passage so as to be positioned between an outlet opening of the compressor and respective intake pipes extending from respective intake ports of the cylinders of the engine. The expansion chamber is placed in a space defined by a V bank of the engine.
摘要:
A two wheel vehicle comprising a vehicle body having a front wheel and a rear wheel with an internal combustion engine mounted on the mid portion of the frame is provided. The engine is provided with a supercharger having an exhaust turbine provided on an exhaust passage side thereof and a compressor provided on an intake passage side thereof and arranged to move with the turbine. The supercharger is positioned in a space defined by the engine and a supporting frame which supports the engine and is interposed between the engine and the front wheel. The defined space is remote from the driver so that the driver is not affected by the supercharger. The supercharger may be mounted on the supporting frame so that it is protected against external frontal or lateral forces.
摘要:
The lower end of a filler tube is attached to a service hole formed on a cylinder block in a horizontally opposed engine on a rear side of the engine, e.g., on side opposite from which an output shaft projects. The filler tube is provided with an elbow at the lower end thereof, and the elbow is integrally formed with a hole cover. When one end of the elbow is inserted into the service hole and the hole cover is fixed to the cylinder block, the connection of the filler tube and closing of the service hole can be simultaneously accomplished. The filler tube extends upward and a cap is attached on the filler port at the upper end facing toward the vicinity of the lid provided on the cowl 20. The lid 21 is not deformed locally, and forms a curved surface continuing from remaining portion of the cowl 20.
摘要:
To simplify the connection of a cylinder barrel and a cylinder head to, a crankcase and to reduce the weight of an engine. A liquid-cooled engine is provided with the crankcase wherein a cylinder barrel having a water jacket on the cylinder side for cooling is connected to the crankcase. A cylinder head is connected to the cylinder barrel. A plurality of mounting bosses extend from fitting planes to a crankcase of the cylinder barrels and to cylinder heads that are integrated with cylinder blocks. The cylinder barrels and the cylinder heads are integrated in a state in which the mounting bosses encircle the cylinder bores and the cylinder blocks are fastened to the crankcase by bolts inserted into each mounting boss.
摘要:
A plug cap guide for enhancing the reliability of mounting a plug cap to a rear portion of a spark plug. The plug cap guide is formed in a hollow cylindrical shape so as to contain a plug cap therein and to have a tip end portion insertable in a plug hole. The plug cap guide is provided with a pressing portion for pressing the plug cap toward the side of a spark plug. A positioning and fixing element for determining the position in the axial direction of the plug cap guide and fixing the plug cap guide is provided between a rear portion of the plug cap guide and a head cover.
摘要:
To simplify a coolant piping around an engine in an engine cooling structure, which has a pump mounted on a crankcase for circulating a coolant between cylinder and head jackets. A crankcase has coolant supply passages for guiding a coolant from a pump and coolant return passages for guiding a coolant delivered out of cylinder jackets. The coolant supply passages and the coolant return passages extend substantially parallel to the axis of a crankshaft. The cylinder jackets and head jackets are formed wherein the coolant supplied from the coolant supply passages returns from the cylinder jackets via the head jackets to the cylinder jackets.
摘要:
An intake system for a horizontally opposed type internal combustion engine can contribute to an improvement in output performance without sacrificing the intrinsic merit of the horizontally opposed type internal combustion engine. Specifically, the intake system ensures that the overall height of the engine remains small. First and second intake ports are provided at head portions of first and second banks, which are arranged on the left and right sides. First and second intake distribution ports are arranged horizontally at a front wall of an intake surge tank 10, which is disposed on the rear end side of and adjacent to a crankshaft 1. The first and second intake ports are respectively connected with each other through first and second intake pipes disposed along a top surface or bottom surface of the engine E. Throttle valves for controlling intake quantities in the first and second intake pipes are provided in upstream portions of the intake pipes.
摘要:
A novel copolymer useful as an active ingredient for a positive type resist material to be decomposed by electron beam or X-rays with a high sensitivity and having a superior resistance to dry etching, a process for producing the copolymer and a resist material containing the copolymer are provided, which copolymer consists of 1 to 50% by mol of structural units of ##STR1## and 50 to 99% by mol of structural units of one or more vinyl compounds at least one of which is an aromatic ring-containing vinyl compound and having a number average molecular weight of 500 to 500,000.
摘要:
A supercharger apparatus for an internal combustion engine having an intake passage member coupled to the internal combustion engine. The intake passage member comprises a compressor, a pre-chamber on the downstream side of the compressor, a throttle valve on the downstream side of the pre-chamber, and a heat insulating elastic member interposed between the compressor and the pre-chamber and between the pre-chamber and an intake port of the engine. The portion of the intake passage that has the pre-chamber and the valve is supported in a floating condition by said elastic member on both ends thereof.