Abstract: In a system, a fuel supply increasing unit increases, upon determination that abnormal combustion takes place in at least one cylinder, a quantity of fuel to be supplied into the at least one cylinder in comparison to a quantity of fuel to be supplied into the same cylinder in which no abnormal combustion takes place. A vibration determiner determines whether a level of vibrations of a vehicle has reached a predetermined level. A disabling unit disables, upon determination that the level of vibrations of the vehicle has reached the predetermined level while the fuel supply increasing unit is increasing the quantity of fuel to be supplied into the at least one cylinder, the fuel supply increasing unit from increasing the quantity of fuel to be supplied into the at least one cylinder.

Abstract: A combustion state control device for an internal combustion engine includes an abnormal combustion detecting unit for detecting abnormal combustion of the internal combustion engine, a fuel supply cut-off unit for cutting off a fuel supply to a cylinder where the abnormal combustion is detected during a cycle from an intake stroke of the cylinder to a next intake stroke thereof, when the abnormal combustion detecting unit detects the abnormal combustion of a cylinder, a vehicle vibration detecting unit for detecting vibration of a vehicle, and a fuel supply cut-off ending unit for ending cutting off of the fuel supply when the vehicle vibration detecting unit detects the vibration of the vehicle while the fuel supply is being cut off.

Abstract: In a system, a fuel supply increasing unit increases, upon determination that abnormal combustion takes place in at least one cylinder, a quantity of fuel to be supplied into the at least one cylinder in comparison to a quantity of fuel to be supplied into the same cylinder in which no abnormal combustion takes place. A vibration determiner determines whether a level of vibrations of a vehicle has reached a predetermined level. A disabling unit disables, upon determination that the level of vibrations of the vehicle has reached the predetermined level while the fuel supply increasing unit is increasing the quantity of fuel to be supplied into the at least one cylinder, the fuel supply increasing unit from increasing the quantity of fuel to be supplied into the at least one cylinder.

Abstract: A combustion state control device for an internal combustion engine includes an abnormal combustion detecting unit for detecting abnormal combustion of the internal combustion engine, a fuel supply cut-off unit for cutting off a fuel supply to a cylinder where the abnormal combustion is detected during a cycle from an intake stroke of the cylinder to a next intake stroke thereof, when the abnormal combustion detecting unit detects the abnormal combustion of a cylinder, a vehicle vibration detecting unit for detecting vibration of a vehicle, and a fuel supply cut-off ending unit for ending cutting off of the fuel supply when the vehicle vibration detecting unit detects the vibration of the vehicle while the fuel supply is being cut off.

Abstract: An internal combustion engine includes a main catalyst disposed in a main passage and a bypass catalyst disposed in a bypass passage bypassing the main passage on an upstream side of the main catalyst. The bypass passage has a smaller transverse cross-sectional area than the main passage. The internal combustion engine further includes a passage open/close unit, a residual gas amount changing unit, and a controller. The passage open/close unit is disposed in a portion of the main passage bypassed by the bypass passage to switch between an open state and a closed state. The residual gas amount changing unit is configured to change an amount of residual gas inside a combustion chamber. The controller is configured to control the residual gas amount changing unit when a passage opening condition for switching the passage open/close unit from the closed state to the open state is satisfied.

Abstract: A disk array system includes a plurality of disk drives and at least one unit box including the plurality of disk drives aligned in the thickness direction of the disk drive, each disk drive including a thin case accommodating a recording disk, a read/write head, and a driving mechanism for driving the recording disk and the read/write head, and a control board for controlling the driving mechanism, the control board being mounted on the thin case. In the disk array system, the thin case and the unit box are composed of a thermally-conductive material, the unit box includes surfaces parallel to the thickness direction of the plurality of disk drives, and at least one of the surfaces has a cold plate filled with a refrigerant. Heat generated at the disk drives is transferred to the cold plate, thereby improving cooling performance.

Abstract: A liquid cooling apparatus for use in a disk array apparatus which contains a plural number of units having a disk drive inside of a housing and disposed within a rack, including an air-blow fan, a pump for transmitting liquid coolant, a radiator for transmitting heat absorbed into the liquid coolant into outside air, and pipes for connection of the pump and radiator. The liquid cooling apparatus further includes a temperature sensor disposed at a position for detecting temperature of the liquid coolant, which temperature changes in response to electric power consumed within the plural number of disk drives, and a rotation speed of the pump is controlled in dependence upon a detection signal from the temperature sensor.

Abstract: In this invention, the CPU of a NAS board, which is liable to become hot, is cooled by concentrating a larger amount of air onto a heat sink. A plurality of logic circuit boards 3 are mounted on a control section 1D of a disc array device 1. The circuit component 4A for realizing the NAS function, liable to become hot, is provided with a heat sink 5. The aperture of the main air inlet section (Wb) is covered with a top plate 8. Airflow guidance sections (Wa, Wc) are respectively provided on both sides of the main air inlet section. Since the fin pitch of the airflow guidance sections is set narrow, the air inflow resistance (airflow resistance) of these is higher than that of the main air inlet section. Due to this difference in airflow resistance, the air in the vicinity of the airflow guidance sections is guided into the main air inlet section. The top plate 8 prevents outflow of air that has flowed into the main air inlet section to outside the heat sink 5.

Abstract: An internal combustion engine includes a main catalyst disposed in a main passage and a bypass catalyst disposed in a bypass passage bypassing the main passage on an upstream side of the main catalyst. The bypass passage has a smaller transverse cross-sectional area than the main passage. The internal combustion engine further includes a passage open/close unit, a residual gas amount changing unit, and a controller. The passage open/close unit is disposed in a portion of the main passage bypassed by the bypass passage to switch between an open state and a closed state. The residual gas amount changing unit is configured to change an amount of residual gas inside a combustion chamber. The controller is configured to control the residual gas amount changing unit when a passage opening condition for switching the passage open/close unit from the closed state to the open state is satisfied.

Abstract: In a cooling structure for use in a disk array apparatus, having boxes 27, each containing disk drives 26 therein by a lager number thereof, in each of the unit housings 114 are provided a air-blow fan 33, and also a liquid cooling system having a pump 107 for transmitting a liquid coolant, a radiator for discharging heats absorbed within the liquid coolant into an outside air, and pipes 101 for connecting those, etc., wherein a rotation speed of the pump is detected by a temperature sensor 120 attached on the pipe in the vicinity of an inlet of the radiator, thereby changing it depending on the temperature detected.

Abstract: A disk array system includes a plurality of disk drives and at least one unit box including the plurality of disk drives aligned in the thickness direction of the disk drive, each disk drive including a thin case accommodating a recording disk, a read/write head, and a driving mechanism for driving the recording disk and the read/write head, and a control board for controlling the driving mechanism, the control board being mounted on the thin case. In the disk array system, the thin case and the unit box are composed of a thermally-conductive material, the unit box includes surfaces parallel to the thickness direction of the plurality of disk drives, and at least one of the surfaces has a cold plate filled with a refrigerant. Heat generated at the disk drives is transferred to the cold plate, thereby improving cooling performance.

Abstract: In this invention, the CPU of a NAS board, which is liable to become hot, is cooled by concentrating a larger amount of air onto a heat sink. A plurality of logic circuit boards 3 are mounted on a control section 1D of a disc array device 1. The circuit component 4A for realizing the NAS function, liable to become hot, is provided with a heat sink 5. The aperture of the main air inlet section (Wb) is covered with a top plate 8. Airflow guidance sections (Wa, Wc) are respectively provided on both sides of the main air inlet section. Since the fin pitch of the airflow guidance sections is set narrow, the air inflow resistance (airflow resistance) of these is higher than that of the main air inlet section. Due to this difference in airflow resistance, the air in the vicinity of the airflow guidance sections is guided into the main air inlet section. The top plate 8 prevents outflow of air that has flowed into the main air inlet section to outside the heat sink 5.