Abstract: A resin composition is provided including: coated particles, each including a core containing a metal oxide and a coating layer containing an aluminum hydrous oxide and provided on a surface of the core; and a resin. The metal oxide is represented by MxOy, where M represents at least one element selected from the group consisting of Ba, Ti, Sr, Pb, Zr, La, Ta, Ca, and Bi, and x and y each represent a number determined from a stoichiometric ratio according to the valence of the metal element M. The resin composition has an atomic ratio Al/(M+Al) of 0.05 or more and 0.7 or less, as determined by XPS for the particles contained in the resin composition.

Abstract: An autotensioner comprises a torsion coil spring interposed between a base and a rocking arm, and a tubular bushing provided between an inside surface of the base and an outside surface of the rocking arm. The torsion coil spring pushes and biases the rocking arm toward the bushing, and brings the pushing direction substantially in coincidence with the axial load direction of the force, acting on a stepped bolt supporting the rocking arm, from a belt. When the belt tension becomes high, the arm axial center displaces slightly from the base axial center, an extremely large first damping force acts on the rocking arm. When the belt tension becomes low, the smaller second damping force acts on the rocking arm.

Abstract: An autotensioner comprises a torsion coil spring interposed between a base and a rocking arm, and a tubular bushing provided between an inside surface of the base and an outside surface of the rocking arm. The torsion coil spring pushes and biases the rocking arm toward the bushing, and brings the pushing direction substantially in coincidence with the axial load direction of the force, acting on a stepped bolt supporting the rocking arm, from a belt. When the belt tension becomes high, the arm axial center displaces slightly from the base axial center, an extremely large first damping force acts on the rocking arm. When the belt tension becomes low, the smaller second damping force acts on the rocking arm.

Abstract: An autotensioner comprises a torsion coil spring interposed between a base and a rocking arm, and a tubular bushing provided between an inside surface of the base and an outside surface of the rocking arm. The torsion coil spring pushes and biases the rocking arm toward the bushing, and brings the pushing direction substantially in coincidence with the axial load direction of the force, acting on a stepped bolt supporting the rocking arm, from a belt. When the belt tension becomes high, the arm axial center displaces slightly from the base axial center, an extremely large first damping force acts on the rocking arm. When the belt tension becomes low, the smaller second damping force acts on the rocking arm.

Abstract: An autotensioner comprises a torsion coil spring interposed between a base and a rocking arm, and a tubular bushing provided between an inside surface of the base and an outside surface of the rocking arm. The torsion coil spring pushes and biases the rocking arm toward the bushing, and brings the pushing direction substantially in coincidence with the axial load direction of the force, acting on a stepped bolt supporting the rocking arm, from a belt. When the belt tension becomes high, the arm axial center displaces slightly from the base axial center, an extremely large first damping force acts on the rocking arm. When the belt tension becomes low, the smaller second damping force acts on the rocking arm.

Abstract: A recirculation exhaust gas extracted from the exhaust passage of an internal combustion engine and flowing through a recirculation passage. A recirculation control valve (6) controls the flow of the recirculation exhaust gas in the recirculation passage. A recirculation pipe (7) forming the recirculation passage has a hot or contact section (7c, 7e) extending near and along an exhaust manifold (1). The recirculation pipe (7) and the exhaust manifold (1) are covered with a heat-insulation cover (10). The drop of the temperature of the recirculation exhaust gas flowing through the recirculation passage is suppressed and the deposition of deposits including carbon in the recirculation control valve (6) is suppressed.

Abstract: An autotensioner having a support shaft affixed to a base, and a cup of a swing member provided swingably about the support shaft. The cup opens to the base and houses inside it a torsion coil spring for biasing the pulley in the direction tensioning the belt. A damping member braking the swing member is fixed to the base. A ring-shaped spring brings it into close contact with the inner circumferential surface close to the opening of the cup. The damping member frictionally slides with the inner circumferential surface at the time of swing of the swing member and supports the swing member in the radial direction at the base side from the bearing supporting the support shaft.

Abstract: An autotensioner comprises a torsion coil spring interposed between a base and a rocking arm, and a tubular bushing provided between an inside surface of the base and an outside surface of the rocking arm. The torsion coil spring pushes and biases the rocking arm toward the bushing, and brings the pushing direction substantially in coincidence with the axial load direction of the force, acting on a stepped bolt supporting the rocking arm, from a belt. When the belt tension becomes high, the arm axial center displaces slightly from the base axial center, an extremely large first damping force acts on the rocking arm. When the belt tension becomes low, the smaller second damping force acts on the rocking arm.

Abstract: An autotensioner comprises a support shaft affixed to a base, and a cup of a swing member provided swingably about the support shaft. The cup opens to the base and houses inside it a torsion coil spring for biasing the pulley in the direction tensioning the belt. A damping member braking the swing member is fixed to the base. A ring-shaped spring brings it into close contact with the inner circumferential surface close to the opening of the cup. The damping member frictionally slides with the inner circumferential surface at the time of swing of the swing member and supports the swing member in the radial direction at the base side from the bearing supporting the support shaft.

Abstract: A recirculation exhaust gas extracted from the exhaust passage of an internal combustion engine and flowing through a recirculation passage. A recirculation control valve (6) controls the flow of the recirculation exhaust gas in the recirculation passage. A recirculation pipe (7) forming the recirculation passage has a hot or contact section (7c, 7e) extending near and along an exhaust manifold (1). The recirculation pipe (7) and the exhaust manifold (1) are covered with a heat-insulation cover (10). The drop of the temperature of the recirculation exhaust gas flowing through the recirculation passage is suppressed and the deposition of deposits including carbon in the recirculation control valve (6) is suppressed.

Abstract: An EGR control system for a direct injection spark ignition engine operated at a plurality of the combustion modes comprising stratified-charge combustion and premix-charge combustion. The system includes a flow rate control valve equipped at the EGR passage to regulate flow rate of the exhaust gas to be recirculated which is operated when the one combustion mode is determined to be changed to another of a plurality of the combustion modes, thereby ensuring an EGR amount that is neither deficient nor excessive for the combustion mode, while preventing misfire from happening and preventing the degradation of drivability, fuel economy and emission performance from occurring. Alternatively, the system includes an actuator for regulating an opening of a throttle valve or a second EGR control valve installed in a branch passage and a passage switching valve for switching the EGR passage and the branch passage.

Abstract: A gasoline direct-injection engine includes a cavity provided in a top portion of a piston and constituting a portion of a combustion chamber defined between a cylinder head and the top portion of the piston, a fuel injection valve mounted in the cylinder head for injecting gasoline directly into the combustion chamber, and a spark plug also mounted in the cylinder head to face the combustion chamber. In this gasoline direct-injection engine, the fuel injection valve facing a substantially central portion of a ceiling surface of the combustion chamber is mounted in the cylinder head to have an axis substantially parallel to an axis of the piston, and the cavity provided in the top portion of the piston and disposed below the fuel injection valve and the spark plug is defined so that it is deeper in an area corresponding to the spark plug than in an area corresponding to the fuel injection valve.

Abstract: A compressed natural gas charging system includes a gas charging passageway whose one end is capable of being connected to a compressed natural gas supply device capable of supplying a compressed natural gas and whose other end opens into a gas vessel, and a one-way valve incorporated in the gas charging passageway to permit the compressed natural gas to flow from the one end of the gas charging passage through the one-way valve toward the other end. In the compressed natural gas charging system, a constriction is provided in the gas charging passageway downstream of the one-way valve and has a constriction degree larger than that of the one-way valve. Thus, it is possible to prevent an excessive temperature drop due to the adiabatic expansion of the compressed natural gas from occurring across the one-way valve and to rapidly charge the compressed natural gas, and it is unnecessary to use an expensive material for a part of or constituting the one-way valve.

Abstract: A semiconductor memory device is provided which includes a substrate arrangement which is suitable for forming a large number of types of DRAMs having different package specifications, different bit structure and different operating modes. In conjunction with this, the bonding pads are arranged at optimum locations for accommodating the different package types. Various layout arrangements are also provided to minimize space and to improve access time. Additional features are provided, including improved output buffer circuitry, protection circuitry and testing methods to facilitate operation of the semiconductor memory device.

Abstract: A fuel injection method wherein optimum fuel injection timing in a fuel-injection type gas fuel engine is determined by setting fuel injection end timing to be after the start of opening of an intake valve. That is, when injection ends in a first half of the intake valve open period the volumetric efficiency .eta.v falls and the engine output also falls, because the injection period overlaps with a period of positive pressure arising inside the intake pipe before opening of the intake valve, but when injection ends in a second half of the intake valve open period the volumetric efficiency .eta.v rises and the engine efficiency also rises, because the injection period overlaps with a period of negative pressure arising in the intake pipe during the first half of the intake value open period. Consequently, when fuel is injected during this trough in the intake port pressure, the volumetric efficiency increases and the engine output also increases by several percent.

Abstract: A memory array is logically and/or physically divided into a plurality of blocks to allow test by individual blocks. When a plurality of column address strobe signals are provided and memory accessing is made by a plurality of bits to the memory array corresponding to the column address strobe signal, tests are independently conducted for each memory array by using the column address strobe signal.

Abstract: An actuator comprises a housing member including a motor compartment and a gear compartment, the gear compartment having inner teeth formed on the inner periphery thereof, a motor having a rotary shaft with a motor gear mounted thereon, the motor being housed in the motor compartment in such a way as to permit the motor gear to project into the gear compartment, an output shaft projecting outwardly from the housing member, a larger diameter gear housed in the gear compartment which is rotatable about the output shaft and held in mesh engagement with the motor gear, a smaller diameter gear disposed coaxially with the larger diameter gear and rotatable in conjunction with the rotation of the larger diameter gear, a planet gear held in mesh engagement with both the smaller diameter gear and the inner teeth formed in the gear compartment so that the planet gear can shift its engagement position with respect to the inner teeth as the smaller diameter gear rotates, and a rotary member engaging the planet gear for r

Abstract: A semiconductor device test circuit for inclusion on a semiconductor chip having a semiconductor device thereon, wherein a test mode with respect to the semiconductor device is not entered during normal use of the semiconductor device and the test mode can be entered without applying a voltage higher than the power supply voltage to an external terminal of the semiconductor device. The test circuit includes a decoder circuit which detects the matching of a first address input corresponding to a test mode, and a latch circuit which latches the signal indicating the matching of the first address input with a test mode. A second decoder circuit then detects the matching of a second address to the test mode, the second address being input when the matching signal for the first address has been latched. A second latch circuit latches the signal indicating the matching of the second address. A third address input is processed by a third decoder circuit and a third latch circuit in the same way.

Abstract: A semiconductor memory device is provided which includes a substrate arrangement which is suitable for forming a large number of types of DRAMs having different package specifications, different bit structure and different operating modes. In conjunction with this, the bonding pads are arranged at optimum locations for accommodating the different package types. Various layout arrangements are also provided to minimize space and to improve access time. Additional features are provided, including improved output buffer circuitry, protection circuitry and testing methods to facilitate operation of the semiconductor memory device.

Abstract: Each of a plurality of memory arrays is divided into a plurality of memory mats MAT00L-MAT07L to MAT10R-MAT17R in directions in which word lines and bit lines extend. First common data lines, that is, sub-IO lines, are provided which correspond to these memory mats and which are disposed in parallel to the word lines. Bit lines designating the corresponding memory mats are selectively connected to the first common data lines. Second common data lines, that is, main IO line groups MIOG0-MIOG7, are also provided and are disposed in parallel to the bit lines. Designated sub-IO lines are selectively connected to the second common data lines. Moreover, a plurality of main amplifiers forming a main amplifier unit MAU0 are orderly arranged in the direction in which the bit lines extend.