Abstract: Provided is a method of controlling the timing of ignition of a compression ignition internal combustion engine of a premixed mixture type in which a premixed gas is self-ignited through compression by a piston, the volume of fuel spray impinging upon the inner wall surface of a combustion chamber is continuously or stepwise increased as the engine speed is changed from a low value to a high value, and which can optimumly control the timing of compression ignition in accordance with an operating condition of the engine at a low cost without complicating the apparatus configuration.

Abstract: The present invention relates to a robot for individually removing requested books from their prescribed locations in bookracks and returning them, a hand mechanism for the robot, and an automated library book handling system incorporating the robot.

Abstract: A cylinder injection engine includes a fuel injector for injecting a fuel into a combustion chamber formed between a cylinder head and a piston, an intake port opening to the combustion chamber, an intake valve disposed in the intake port, a plurality of spark plugs provided for each cylinder for effecting ignition of a mixture formed within the combustion chamber, an external EGR valve having a function of EGR amount control to the cylinder, and a gas flow control valve. The engine has air/fuel ratio mode setting and ignition mode setting.

Abstract: The piston 4 is one whose top part has a flat shape. Fuel is injected directly inside the cylinder 1 from the fuel injection valve 2. The tumble air flow control valve 7 adjusts the strength of the tumble air flow. The injected fuel pressure control section 110 of the control unit 100 varies the injected fuel pressure in accordance with the rotational speed of the engine while maintaining constant the opening angle of the tumble air flow adjustment valve 7. The TCV opening angle control section 120 varies the opening angle of the tumble air flow adjustment valve 7 in accordance with the rotational speed of the engine while maintaining constant the injected fuel pressure. The control is made by switching between the injected fuel pressure control section 110 and the TCV opening angle control section 120 depending on the rotational speed of the engine.

Abstract: The present invention relates to navigation of an autonomous vehicle capable of autonomously tracking a route toward a destination.

Abstract: A combustion chamber is formed using a flat piston having a low cooling loss and therein a forward tumble is generated. A fuel spray is formed by a provision of a splitter which is provided to make off-set from a center of an injection port at a tip end of a tumble atomization system fuel injector. The fuel spray is divided into a fuel spray having a strong penetration force and a fuel spray having a small penetration force. The fuel spray having the strong penetration force is injected in a vicinity of an ignition plug. Accordingly, a fuel adhesion to the piston can be reduced and further a reduction of a discharge HC and a fuel consumption can be improved.

Abstract: A combustion chamber is formed using a flat piston having a low cooling loss and therein a forward tumble is generated. A fuel spray is formed by a provision of a splitter which is provided to make off-set from a center of an injection port at a tip end of a tumble atomization system fuel injector. The fuel spray is divided into a fuel spray having a strong penetration force and a fuel spray having a small penetration force. The fuel spray having the strong penetration force is injected in a vicinity of an ignition plug. Accordingly, a fuel adhesion to the piston can be reduced and further a reduction of a discharge HC and a fuel consumption can be improved.

Abstract: The present invention relates to navigation of an autonomous vehicle capable of autonomously tracking a route toward a destination.

Abstract: The piston 4 is one whose top part has a flat shape. Fuel is injected directly inside the cylinder 1 from the fuel injection valve 2. The tumble air flow control valve 7 adjusts the strength of the tumble air flow. The injected fuel pressure control section 110 of the control unit 100 varies the injected fuel pressure in accordance with the rotational speed of the engine while maintaining constant the opening angle of the tumble air flow adjustment valve 7. The TCV opening angle control section 120 varies the opening angle of the tumble air flow adjustment valve 7 in accordance with the rotational speed of the engine while maintaining constant the injected fuel pressure. The control is made by switching between the injected fuel pressure control section 110 and the TCV opening angle control section 120 depending on the rotational speed of the engine.

Abstract: The present invention relates to a robot for individually removing requested books from their prescribed locations in bookracks and returning them, a hand mechanism for the robot, and an automated library book handling system incorporating the robot.

Abstract: The piston 4 is one whose top part has a flat shape. Fuel is injected directly inside the cylinder 1 from the fuel injection valve 2. The tumble air flow control valve 7 adjusts the strength of the tumble air flow. The combustion pressure control section 110 of the control unit 100 varies the combustion pressure in accordance with the rotational speed of the engine while maintaining constant the opening angle of the tumble air flow adjustment valve 7. The TCV opening angle control section 120 varies the opening angle of the tumble air flow adjustment valve 7 in accordance with the rotational speed of the engine while maintaining constant the combustion pressure. The control is made by switching between the combustion pressure control section 110 and the TCV opening angle control section 120 depending on the rotational speed of the engine.