Patent application number | Description | Published |
20100139480 | PISTON - A piston with transverse-rib through holes formed easily therein for reducing the cost of manufacturing. A piston includes a pair of mutually opposed longitudinal ribs individually formed with piston pin bosses interconnecting a pair of piston skirt portions on a back side of a piston head. A pair of transverse ribs interconnect the mutually opposed longitudinal ribs with the transverse ribs. The pair of transverse ribs are formed with transverse-rib through holes at places proximal to the back side of the piston head. A skirt opening is formed by cutting away a part of the piston skirt portion that is opposed to the transverse rib and faces the transverse-rib through hole. | 06-10-2010 |
20100192897 | MULTI-CYLINDER INTERNAL COMBUSTION ENGINE - To reduce the height of a crankcase by arranging a communicating passage in a proper position and to miniaturize an engine in a multi-cylinder internal combustion engine provided with an upper crankcase integrated with a cylinder block or provided separately from the cylinder block on the downside of the cylinder block and a lower crankcase connected to a lower part of the upper crankcase and provided with a communicating passage that communicates with internal spaces of plural crank chambers corresponding to plural cylinders. In the multi-cylinder internal combustion engine, a communicating hole that communicates with the communicating passage is provided on at least either side of the upper crankcase or the lower crankcase, and a cover forming the communicating passage is arranged with the cover covering the communicating hole and is attached to both crankcases across a joined plane of the upper crankcase and the lower crankcase. | 08-05-2010 |
20100192900 | MULTI-CYLINDER INTERNAL COMBUSTION ENGINE - A communicating passage for discharging oil and recovering the oil in an oil pan in a multi-cylinder internal combustion engine wherein the communicating passage enables internal spaces of a plurality of crank chambers corresponding to a plurality of cylinders to communicate is provided to a crankcase. An opening of a drain for discharging oil inside the communicating passage is provided. In addition, the drain for discharging the oil via the opening is provided. The drain is formed to discharge the oil on the side of the oil pan provided to the crankcase. | 08-05-2010 |
20100229830 | IN-CYLINDER INJECTION TYPE MULTICYLINDER INTERNAL COMBUSTION ENGINE - In an in-cylinder injection type multicylinder internal combustion engine for uneven interval firing, including a plurality of air-fuel mixture injection valves for directly injecting an air-fuel mixture into a combustion chamber of each cylinder, the air-fuel mixture injection valves being mounted on a multicylinder engine body and each having a fuel injection valve and an air injection valve, and an air pump actuatable by power transmitted from a crankshaft for discharging compressed air. The air pump is connected in common to the air-fuel mixture injection valves with the injection pressure of the air-fuel mixture injection valves in each cylinder being prevented from changing for good combustibility. The discharge timing of the air pump is set out of synchronism with the injection timings of the fuel injection valves and the air injection valves of all the cylinders. | 09-16-2010 |
20100236856 | HYBRID VEHICLE - A hybrid vehicle in which an electric motor is disposed in the vicinity of a center of a vehicle body to reduce lateral expansion. The hybrid vehicle includes an engine, a motor, and a power transmission mechanism for transmitting power of the engine and the motor to a rear wheel. The engine is suspended on the vehicle body in a non-swingable manner with a cylinder extending in a substantially horizontal direction and a crankshaft provided to be oriented in a vehicle width direction. The electric motor is located in front of and above the crankshaft of the engine. | 09-23-2010 |
20100243348 | HYBRID VEHICLE - A hybrid vehicle includes an engine; a motor; a power transmission mechanism and an oil pump for lubricating the engine and the power transmission mechanism with the rotation of a crankshaft. The oil pump has an oil pump shaft with an oil pump driven gear on one end thereof through a one-way clutch and an oil pump driven sprocket on the other end of the oil pump shaft through a one-way clutch. The oil pump driven gear is connected to a primary drive gear rotating integrally with a motor driven gear for transmitting the power of the motor to the drive wheel. The oil pump driven sprocket is connected to a cam chain of the engine to be rotated by power of the engine. The motor driven gear is disposed on one side of the crankshaft and the cam chain is disposed on the other side of the crankshaft. | 09-30-2010 |
20100243349 | VEHICLE - A technique for enabling reduction of fuel consumption without greatly changing an engine structure and without impairing a feeling of operation of a vehicle as a motorcycle. An engine includes a crankshaft and a primary gear integrated with the crankshaft that is attached such that the power of the engine is transmitted to a wheel. A one-way clutch transmits the power from the crankshaft to the primary gear but does not transmit the power from the primary gear to the crankshaft. The one-way clutch is provided between the crankshaft and the primary gear with a regenerative brake motor being provided on the primary gear. The engine is non-swingable mounted on the vehicle body with a cylinder extending in a substantially horizontal direction and a crankshaft provided to be oriented in a vehicle width direction. An electric motor is located in front of and above the crankshaft of the engine. | 09-30-2010 |
20120325571 | HYBRID SADDLE-TYPE VEHICLE - A hybrid saddle-type vehicle is provided with a power transmission mechanism for transmitting a power of an internal combustion engine to a drive shaft of a rear wheel from one side of a swing arm in a widthwise direction of a vehicle, and an electric motor disposed in the other side in the widthwise direction and for transmit a driving force from the other side in the widthwise direction. A motor housing of the electric motor is supported on an extension portion extending in the other side in the widthwise direction from a portion of the drive shaft to which the rear wheel is mounted, via a pair of bearing sections disposed on both sides of the motor housing in the widthwise direction. The rotor is rotatably supported by the drive shaft between the pair of the bearing sections. | 12-27-2012 |