Abstract: An internal combustion engine control device that acquires the temperature of a catalyst disposed in an exhaust path, and detects an abnormal combustion that has occurred in a combustion chamber. The control device includes a gas control unit, which controls the amount of intake gas flowing into the combustion chamber and the temperature of exhaust gas flowing into the catalyst, and a fuel injection amount control unit, which controls the amount of fuel injected into the combustion chamber. The control device also includes an abnormal combustion inhibition mode selection unit that chooses a first mode, a second mode, or a third mode in accordance with the catalyst temperature when the abnormal combustion is detected. The first mode causes the gas control unit to suppress the occurrence of the abnormal combustion while raising the catalyst temperature.

Abstract: A control apparatus for an internal combustion engine equipped with an idling stop mechanism and a supercharger. The control apparatus is provided with: a controlling device which is configured to detect atmospheric pressure and to change a threshold value of a parameter which allows idling stop processing to be performed by the idling stop mechanism, to a side on which the idling stop processing is not allowed, as the detected atmospheric pressure has a lower value, in order to suppress an excessive increase in temperature of a catalyst.

Abstract: A combined piston ring comprising a special gap effective for reducing blowby to have excellent gas sealability, comprising a piston ring body of a high-strength, heat-resistant resin comprising a step-shaped gap exposed on upper and lower side surfaces and an outer peripheral surface, and a spring disposed on the inner peripheral side of the piston ring body for pushing the piston ring body radially outward, at least a side surface of the piston ring body on the combustion chamber side having a heat-resistant coating, whereby the side surface of the piston ring on the combustion chamber side is not subject to local deformation and melting by a burned gas from the combustion chamber.

Abstract: Surging is reliably prevented from occurring even when an engine with a turbocharger is operated with reduced number of cylinders and at a low speed range. Concerned is a method for controlling actuation of valves in an engine with a turbocharger, a variable valve mechanism 18 being arranged for controlling opening/closing timing and lifts of suction and exhaust valves (only exhaust valves 17 being shown in the figure) of each of cylinders 8, an operation with reduced number of cylinders being made possible by the variable valve mechanism 18 such that valve-opening action of suction and exhaust valves in part of the cylinders 8 is disabled to conduct the operation with the remaining cylinders 8.

Abstract: An EGR cooler including tubes and a shell enclosing the tubes. Cooling water is supplied into and discharged from the shell. Exhaust gas is guided from a diesel engine into the tubes for thermal exchange of the exhaust gas with the cooling water. A bypass flow path for guiding the cooling water is constituted within the shell so as to prevent stagnation of the cooling water in the shell.

Abstract: Surging is reliably prevented from occurring even when an engine with a turbocharger is operated with reduced number of cylinders and at a low speed range. Concerned is a method for controlling actuation of valves in an engine with a turbocharger, a variable valve mechanism 18 being arranged for controlling opening/closing timing and lifts of suction and exhaust valves (only exhaust valves 17 being shown in the figure) of each of cylinders 8, an operation with reduced number of cylinders being made possible by the variable valve mechanism 18 such that valve-opening action of suction and exhaust valves in part of the cylinders 8 is disabled to conduct the operation with the remaining cylinders 8.

Abstract: A particulate filter is realized in a compact size which is adaptive to forced regeneration through addition of fuel and which can prevent white fume from being generated by excessive part of the fuel. A particulate filter 12 is disclosed which captures particulates entrained in exhaust gas 2. Plug bodies 8 at inlets of a filter body 7 are arranged in passages and inwardly of an inlet edge of the filter body by predetermined distance, added-fuel oxidation catalyst 13 with enhanced performance of promoting oxidation reaction of the added fuel being carried in a region between the inlet edge of the filter body and arranged positions of the plug bodies 8 at the inlets.

Abstract: Provided is an EGR cooler which can solve the problem of the vibrated tubes without causing thermal deformation due to stagnation of the coolant water, without complexity of piping in the coolant water system and without increase in pressure loss. The EGR cooler comprises tubes 3 and a shell surrounding the tubes 3, the coolant water being supplied and discharged to and from the shell 1 and being passed through the respective tubes 3 so as to make heat exchange of the exhaust gas with the coolant water. In the shell 1, an intermediate support plate 13 with a plurality of through-holes 14 is arranged and mutually adjacent ones of the tubes 3 are grouped for penetratingly fixture to the through-hole 14. A coolant water passage 15 is ensured between the tubes 3 grouped and penetratingly fixed to the same through-hole 14 of the intermediate support plate 13 for free communication between the tubes 3.

Abstract: Coolant water is prevented from stagnating with no restriction to a mounted posture of an EGR cooler to a vehicle. The EGR cooler has tubes 3 and a shell 1 surrounding the tubes 3, coolant water 9 being fed into and discharged from the shell 1, exhaust gas being passed through the tubes 3 for heat exchange of the exhaust gas with the coolant water 9. An annular coolant-water supply chamber 11 is fitted over the shell 1 near an axial end of the shell 1. A coolant-water inlet pipe 4 is connected to a periphery of the supply chamber 11. Communicating holes 12 are formed at a plurality of peripheral positions sequentially along a portion of the shell 1 surrounded by the supply chamber 11 such that the holes have gradually reduced diameters as they are apart from the connection of the shell with the inlet pipe 4, so that the coolant water 9 may be introduced into the shell 1 substantially evenly through the communicating holes 12.

Abstract: An EGR cooler including tubes and a shell enclosing the tubes. Cooling water is supplied into and discharged from the shell. Exhaust gas is guided from a diesel engine into the tubes for thermal exchange of the exhaust gas with the cooling water. A bypass flow path for guiding the cooling water is constituted within the shell so as to prevent stagnation of the cooling water in the shell.

Abstract: In order to prevent a deck tower from collapsing because two or more decks are drawn at the same surface side of the deck tower, stopper mechanisms for preventing the deck from being drawn are provided at deck shelves at the upper and lower tiers. A deck apparatus includes a stopper member for preventing the decks from being drawn, which is movably mounted, so that the stopper mechanisms at the upper and lower tiers may be linked with each other. It also includes a locking arm for when the stopper member at any shelf is moved to release the deck from being locked, preventing the stopper members at the remaining shelves from moving. The locking arm allows only an deck to be alternatively drawn.

Abstract: A magnetic tape library apparatus having mechanisms for reengaging a disengaged leader block of any magnetic tape cartridge entered. The apparatus comprises a cell unit having a plurality of cells each accommodating a magnetic tape cartridge, a magnetic tape drive unit for writing and reading data to and from the magnetic tape in the magnetic tape cartridge, and an accessor for automatically switching magnetic tape cartridges between the cell unit and the magnetic tape drive unit. The magnetic tape library apparatus further comprises a stacker for stacking a plurality of magnetic tape cartridges entered externally, and a delivery mechanism for selecting one of the magnetic tape cartridges stacked in the stacker for delivery to the accessor. Adjacent to the delivery mechanism is a hammer mechanism that hits the leader block for engagement with a latch.

Abstract: A magnetic tape apparatus has an automatic loading mechanism for automatically loading a cartridge containing a recording medium. The magnetic tape apparatus includes, in addition to the automatic loading mechanism, a recording/reproducing unit, a magazine for storing a plurality of cartridges, an accessor for feeding a cartridge, a charger/discharger for charging and discharging a cartridge other than the cartridges stored in the magazine, and a positioning unit for positioning a charged cartridge in a normal position. The magnetic tape apparatus is capable of carrying out special processes including an interrupting process.

Abstract: A magnetic tape library apparatus having mechanisms for reengaging a disengaged leader block of any magnetic tape cartridge entered. The apparatus comprises a cell unit having a plurality of cells each accommodating a magnetic tape cartridge, a magnetic tape drive unit for writing and reading data to and from the magnetic tape in the magnetic tape cartridge, and an accessor for automatically switching magnetic tape cartridges between the cell unit and the magnetic tape drive unit. The magnetic tape library apparatus further comprises a stacker for stacking a plurality of magnetic tape cartridges entered externally, and a delivery mechanism for selecting one of the magnetic tape cartridges stacked in the stacker for delivery to the accessor. Adjacent to the delivery mechanism is a hammer mechanism that hits the leader block for engagement with a latch.

Abstract: A hand mechanism of an accessor, capable of gripping a recording medium cartridge in a horizontal condition thereof. The accessor automatically exchanges the recording medium cartridge between a cell unit having a plurality of cells each accommodating the recording medium cartridge and a recording medium drive unit for performing read/write of data from/to the recording medium cartridge. The hand mechanism includes a base mounted swingably about a vertical axis, a grip hand mounted on the base movably between an advanced position and a retracted position, for gripping the cartridge, and a tray mounted on the base and under the grip hand movably between an advanced position projecting from the base and a retracted position. The hand mechanism further includes a cartridge gripped condition correcting mechanism for correcting a gripped condition of the cartridge gripped by the grip hand.

Abstract: A cartridge autoloading apparatus attached to a cartridge recording and retrieval apparatus includes two safety lock mechanisms for stopping abnormal ascending and descending operations of a magazine which accommodates therein a plurality of cartridges. Due to the two safety lock mechanisms, the cartridge autoloading mechanism is safer than a conventional one.