摘要:
A control device of an engine having cylinders which are divided into two cylinder groups. The first cylinder group is provided with a first throttle valve and a first recirculation valve. The second cylinder group is provided with a second throttle valve and a second recirculation valve. When shifting from full cylinder operation to partial cylinder operation where the second cylinder group is left idle, the sum of the load of both the cylinder groups is maintained as substantially the same load as the total load before shifting to the partial cylinder operation, the first throttle valve is gradually opened, and the second throttle valve is gradually closed.
摘要:
A control device for a variable displacement engine, coupled with an automatic transmission, for an automobile, wherein the control device controls cylinders depending on the driving condition. The control device changes working cylinders without changing the number of working cylinders during the shift operation of the automatic transmission by detecting that the automatic transmission is going to shift. When the control device changes working cylinders without changing the number of working cylinders, the control device controls cylinders so that cylinders which are non-working before the changing work after the changing, and controls cylinders so that a non-working cylinder is not followed by another non-working cylinder in the firing order of the case of all cylinders are working. When intake air is introduced into non-working cylinders and catalytic converters are required, the catalytic converters are so arranged that gases exhausted from non-working cylinders are introduced into catalytic converters which are different from catalytic converters into which gases exhausted from working cylinders are introduced through all conditions with some of cylinders working, and the quantity of intake air introduced into each working cylinder when some of cylinders work is greater than the quantity of intake air introduced into each cylinder when all cylinders work. The control device also controls the throttle valve such that the smaller the number of working cylinders, the greater the throttle valve opening relative to the depression of the accelerator pedal.
摘要:
Providing the conductive paste for the material forming the conductive connecting member without disproportionately located holes (gaps), coarse voids, and cracks, which improves thermal cycle and is excellent in crack resistance and bonding strength. An conductive paste including metal fine particles (P) comprising metal fine particles (P1) of one or more than two kinds selected from metal and alloy thereof, having mean primary particle diameter from 1 to 150 nm, and metal fine particles (P2) of same metal as the metal fine particles (P1), having mean primary particle diameter from 1 to 10 μm, mixing ratio of (P1/P2) being from 80 to 95 mass % for P1 and from 20 to 5 mass % for P2 (a total of mass % being 100 mass %); and organic dispersion medium (D) comprising organic solvent (S), or organic solvent (S) and organic binder (B), mixing ratio (P/D) of the metal fine particles (P) and the organic dispersion medium (D) being from 50 to 85 mass % for P and from 50 to 15 mass % for D (a total of mass % being 100 mass %).
摘要:
A material is for thermal bonding by metal fine particle sintering mediated by a metal sintered film, such that shorts do not occur readily between bonded sections, and bonding strength is higher than that achieved by plating or sputtering. The material is obtained by dispersing metal fine particles in an organic compound dispersion medium that melts or softens through heating at a temperature higher than 30° C., and is interposed between metal members, semiconductor members or ceramic members. The material includes 60 wt % or more of the organic compound dispersion medium containing one or more types of a polyol having a melting point or softening point of 30° C. or higher and having two or more hydroxyl groups in the molecule, and 80 wt % or more of the metal fine particles that have an average particle size of primary particles ranging from 5 to 200 nm.
摘要:
A starter for an internal combustion engine includes a power transmission mechanism. The power transmission mechanism has an outer race plate fastened to a crankshaft, and a ring gear coupled to a rotational shaft of an electric motor for starting the engine. The power transmission mechanism further has a one-way clutch for permitting torque transmission only from the ring gear to the outer race plate, and two sealing members. Lubricant is supplied from the cylinder block to the interior of the power transmission mechanism for lubricating the power transmission mechanism. The outer race plate has a groove on its contact surface of a contact portion between the crankshaft and the outer race plate. The groove extends in the entire circumferential direction of the crankshaft. This maintains the coupling strength between the outer race plate and the crankshaft, while enhancing the sealing performance of the power transmission mechanism.
摘要:
An outer race support plate to which torque of a pinion gear is transmitted from a ring gear via a one-way clutch and thus rotates a crankshaft is provided separately from a flywheel and is mounted to the crankshaft not via the flywheel. As a result, impact noise produced when the one-way clutch engages is not directly transmitted to the flywheel. Accordingly, noise radiation from the flywheel can be suppressed, thereby enabling noise to be reduced.
摘要:
A variable valve operating device that makes it possible to reduce the loss in driving force transmission from a camshaft to a valve during a valve lift is provided. The rotary motion of a drive cam is transmitted to a swing member via intermediate rollers. A coupling member couples the intermediate rollers, to a swing fulcrum that is fastened to a control shaft. The swing fulcrum is positioned eccentrically to the center of the control shaft. Further, when the control shaft is positioned at a predetermined rotation position, the swing fulcrum is positioned so that the control shaft is placed between the swing fulcrum and the intermediate rollers. Preferably, the swing fulcrum, the control shaft, and the intermediate rollers are aligned.
摘要:
A ring gear is formed by joining a race side-region formed body, a gear side-region formed body and an intermediate region formed body. Accordingly, it is possible to perform processing of an inner race portion of the race side-region formed body with none of the gear side-region formed body and the intermediate region formed body present. By causing the gear side-region formed body and the intermediate region formed body to absorb changes in design depending on the type of internal combustion engine, it is possible to standardize the size and the shape of the race side-region formed body for various engine types. Because the inner race portion, as well as a disposition surface and a contact surface for the seal rings are formed on the same race side-region formed body, it is possible to finish the surfaces with precise positional relationship.
摘要:
A torque transmitting mechanism, including a ring gear; a crankshaft side member which rotates in conjunction with a crankshaft; a one-way clutch arranged between the ring gear and the crankshaft; a bearing arranged between the crankshaft or the crankshaft side member and a surface of the ring gear that faces in the opposite direction from the side of the ring gear on which the one-way clutch is arranged; a first oil seal member arranged together with the bearing between the crankshaft or the crankshaft side member and the surface of the ring gear that faces in the opposite direction from the side of the ring gear on which the one-way clutch is arranged, and is arranged on the opposite side of the bearing from the internal combustion engine main body; and a second oil seal arranged between the ring gear and the internal combustion engine main body.
摘要:
A control apparatus calculates a exhaust gas air-fuel ratio of a plurality of cylinders, in which the operation angle of an intake valve is set to a predetermined operation angle, e.g., a maximum operation angle, based on a value output from an air-fuel ratio sensor so as to minimize a variation in an fuel injection quantity between the plurality of cylinders by that exhaust gas air-fuel ratio. That is, the exhaust gas air-fuel ratio of the plurality of cylinders, in which the valve opening characteristics of the intake valve and an exhaust valve are set such that the intake air amount to be introduced into the plurality of cylinders is limited by the opening amount of a throttle valve, for example, and not limited by the valve opening characteristics of the intake valve or the exhaust valve is calculated, and the variation in the fuel injection quantity among the plurality of cylinders is then reduced by that exhaust gas air-fuel ratio. Then, the variation in valve opening characteristics among the cylinders is reduced.