摘要:
A turbocharged internal combustion engine for a spark ignition internal combustion engine using gasoline as the fuel is disclosed. An intake system is constructed for the generation of a homogeneous flow of the intake air. The turbocharger is constructed to obtain a ratio of a pressure at the output to the pressure at the input higher than at least 1.5. A lean combustible mixture is obtained at a high engine load or engine speed area whereat the turbocharger can obtain a full supercharging ability. A relationship between the degree of supercharging is such that the larger that value of the air-fuel ratio, the higher the intake pressure. A high fuel consumption efficiency is obtained while preventing an excessive increase of the exhaust gas temperature.
摘要:
A sequential turbocharger system for an internal combustion engine with an exhaust gas recirculation system. The sequential system includes a large-volume turbocharger and a small-volume turbocharger, which are arranged in series in the direction of the flow of gases. A bypass passageway is connected to an exhaust pipe to thereby bypass the turbine of the small-volume turbocharger, and an exhaust switching valve is arranged in the bypass passageway for controlling the flow of exhaust gas to the turbine of the small-volume turbocharger. The EGR system includes an exhaust gas recirculation passageway for introducing an amount of exhaust gas into the intake pipe of the engine. The exhaust gas for recirculation is taken out from the intake pipe at a position located between the turbines of the small-volume and large-volume turbochargers.
摘要:
An oil pan is provided with an oil pan separator that partitions a first chamber that communicates with a moving part inside a cylinder block and a second chamber outside the first chamber. A communicating hole is provided to a bottom panel of the oil pan separator. The communicating hole is shielded from a strainer.
摘要:
The recording and reproducing apparatus has rotary drive unit (a motor) that rotationally drives a multilayer recordable recording medium 1; a reference-light-side recording and reproducing lens 6 and a recording-light-side recording and reproducing lens 7 that are disposed oppositely to the recording medium 1 which is rotationally driven by the rotary drive unit, an address detection lens 5 that is disposed opposite the recording medium 1 and that is provided separately from the recording and reproducing lenses 6 and 7; a light source 9 for recording and reproducing purpose that supplies recording reproduction light to the recording and reproducing lenses 6 and 7; and the address light source 9 that supplies address light to the address detection lens 5. The apparatus is configured in such a way that light whose center axis portion is optically hollow is supplied from the reference-light-side recording and reproducing lens 6 to the recording medium 1 during reproducing operation.
摘要:
An optical pickup device includes light sources for respectively emitting a plurality of different wavelengths of light, a unit structured for causing at least a part of the light emitted from the light sources to pass a same optical path; and a focusing unit for focusing the light. The focusing unit includes at least first and second focusing parts, the first focusing part being to focus mainly a wavelength of light different from a wavelength of light to be mainly focused by the second focusing part. The optical pickup device and optical disk device are capable of realizing at least one of thickness reduction, size reduction and suppression against characteristic deterioration even where coping with various wavelengths of laser including a blue laser.
摘要:
To provide an optical pickup device and optical disk device capable of realizing at least one of thickness reduction, size reduction and suppression against characteristic deterioration even where coping with various wavelengths of laser including a blue laser. An optical pickup device comprising light sources for respectively emitting a plurality of different wavelengths of light, unit structured for causing at least a part of the light emitted from the light sources to pass a same optical path; and focusing unit for focusing the light. The focusing unit includes at least first and second focusing parts, the first focusing part being to focus mainly a wavelength of light different from a wavelength of light to be mainly focused by the second focusing part.
摘要:
An optical pickup includes a light source, a light converging portion for converging a light emitted from the light source on the recording surface of an optical disk, a signal detecting portion for detecting a light reflected by the recording surface and converting this light into a specified electric signal, a first optical element, which is arranged between the light source and the light converging portion for forming a plurality of diffracted lights from the light emitted from the light source, and a second optical element, which is arranged between the light source and the light converging portion and in which an optical path for the light reflected by the recording surface of the optical disk and an optical path for the emitted light are different from each other. Thus, without increasing the weight of a movable portion and also without increasing the manufacturing costs of a condenser lens, reproducing is performed from a high density optical disk and a conventional low density optical disk, which are different in standard.
摘要:
An optical integration element of the invention comprises a substrate possessing a light emitting element for emitting light, and a receiving sensor for receiving reflected light, an incident part composed of an optical transparent material for receiving the light from the light emitting element, a first reflecting part for reflecting the light entering from the incident part, a second reflecting part for reflecting by converting the light from the first reflecting part into nearly parallel light or convergent light, a condensing part for condensing the light from the second reflecting part, and an optical member forming an optical path transforming part for guiding the reflected light into the receiving sensor.
摘要:
An internal combustion engine according to the present invention includes an exhaust treatment apparatus provided in an exhaust passage, and a burner apparatus provided upstream of the exhaust treatment apparatus to increase an exhaust temperature. The burner apparatus includes at least a fuel addition valve that allows fuel to be added into exhaust and ignition means for igniting the fuel added via the fuel addition valve. The fuel addition valve is driven open when fuel is added via the fuel addition valve. The amount of fuel added via the fuel addition valve per unit time is increased beyond a predetermined reference amount when the detected amount of intake air exceeds a predetermined threshold value. The probability of successful ignition by the ignition apparatus is increased, and a flame is prevented from being blown out. Thus, the burner apparatus can demonstrate sufficient ignition performance and sufficient combustion performance.
摘要:
A plate body 2, multiple hologram layers 3 are provided in the thickness direction of the plate body 2, and at least one of the multiple hologram layers 3 is formed of spirally continuous hologram bands 4. Erasure areas 4A and 4B and non-erasure areas 4C and 4D of the hologram band 4 are provided in the length direction of the hologram band 4. Non-erasure areas 4E and 4F of the hologram band 4 are formed on both sides in the direction orthogonal to the length direction of the hologram band 4 in the erasure areas 4A and 4B.