摘要:
A knocking control system for an internal combustion engine with inlet valves and exhaust valves having valve timing thereof controlled depending on operating conditions of the engine. It is determined whether or not knocking has occurred in the engine on the basis of a detection parameter indicative of knocking and at least one discrimination parameter. The operation of the engine is controlled by the use of at least one control parameter in response to the determination result, so as to eleminate knocking. The values of the discrimination and control parameters are selected in accordance with the actual valve timing. When abnormality in the valve timing control is detected, the valve timing is held at predetermined valve timing irrespective of engine operating conditions, and values of the at least one discriminating parameter and the at least one control parameter are selected, which correspond to the held predetermined valve timing. Alternatively, when abnormality in the valve timing control is detected, the above control of the engine operation is inhibited.
摘要:
A failsafe method in connection with valve timing-changeover control for an internal combustion engine. An abnormality in a control system of the engine is detected. A changeover-instructing signal is generated for changing the valve timing to the low speed valve timing in both of the lower and higher engine speed regions, when the abnormality is detected. When the abnormality is detected, the air-fuel ratio of an air-fuel mixture to be supplied to the engine is enriched when the engine is in a predetermined operating condition determined by the detected value of at least one engine parameter. The enriching of the air-fuel ratio of the air-fuel mixture is carried out by multiplying a basic fuel injection period by a correction coefficient or selecting a suitable basic fuel injection period map.
摘要:
Failure of a valve timing changeover control system of an internal combustion engine is detected by the steps of: (1) setting a predetermined state of intake air to be supplied to the engine depending on a control signal for controlling changeover of valve timing, (2) detecting a state of intake air being supplied to the engine, (3) comparing the detected state of intake air with the set predetermined state of intake air, and (4) detecting from the result of the combustion whether or not there is failure in the valve timing changeover control system.
摘要:
An engine control apparatus wherein an engine output can be adjusted in accordance with an allowable revolution speed of the engine at each valve timing so that while the engine can operate at a revolution speed of up to the highest allowable speed range when operating at a valve timing at which the allowable revolution in speed is high, it can nevertheless operate advantageously without experiencing damage to the timing belt and valve jump even when operated at a valve timing having a lower allowable revolution speed range.
摘要:
According to one embodiment, an erasing apparatus for a sheet includes a conveying path configured to convey a sheet on which an image is formed with a coloring agent that is erased by heating, a first erasing section including, on an upstream side of the conveying path, a first heating member provided on one surface side of the sheet and a first rotating roller provided to be opposed to the first heating member, and a second erasing section including, on a downstream side of the first erasing section, a second heating member provided on the other surface side of the sheet and a second rotating roller provided to be opposed to the second heating member.
摘要:
There is provided a decoloring device including a decoloring unit, a first sheet conveying unit, a pre-decoloring reading unit, a type determining unit, a second sheet conveying unit, a post-decoloring reading unit, a decoloring success or failure determining unit, and a determination criterion setting unit. The type determining unit determines the type of image on the sheet conveyed to the decoloring unit based on the reading result in the pre-decoloring reading unit. The post-decoloring reading unit reads an image on the sheet after the decoloring, which is conveyed by the second sheet conveying unit. The decoloring success or failure determining unit determines whether or not the decoloring in the decoloring unit is successful based on the reading result in the post-decoloring reading unit. The determination criterion setting unit sets a determination criterion in the decoloring success or failure determining unit, based on the type of image, which is determined by the type determining unit.
摘要:
According to an embodiment, a sheet discharging device includes: a first conveying path configured to guide a sheet to be conveyed; a second conveying path branched from the first conveying path at a branch point of the first conveying path; a sorting section configured to sort a sheet being conveyed on the first conveying path into either a downstream side of the branch point on the first conveying path or the second conveying path; a first discharge tray configured to receive a sheet discharged from the first conveying path at a first sheet loading surface; and a second discharge tray placed below the first discharge tray and configured to receive a sheet discharged from the second conveying path at a second sheet loading surface whose distance to the first sheet loading surface increases toward a downstream side thereof in a sheet discharging direction.
摘要:
An image erasing apparatus includes a scanning unit, a memory unit, an erasing unit, and a carrying unit. The scanning unit converts an image formed on a sheet into image data which is electronic data. The memory unit stores the image data converted by the scanning unit. The erasing unit erases the image formed on the sheet. The carrying unit carries the sheet to the scanning unit and the erasing unit in this order.
摘要:
An image erasing apparatus includes: a first carrying section carrying a recording medium; a second carrying section carrying the recording medium; a branching section branching a carrying path into the first carrying section and the second carrying section; a first erasing section erasing an image of the recording medium in the first carrying section; a second erasing section erasing the image of the recording medium in the second carrying section; a third carrying section carrying the recording medium pas sing through the first erasing section to the second carrying section; and a control section selecting the carrying path of the recording medium depending on an image erasing mode.
摘要:
According to one embodiment, an erasing apparatus including a recording medium removing apparatus includes: a thickness sensor configured to change an output signal according to the thickness of a recording medium; a recording medium conveying mechanism configured to convey the recording medium; a recording medium removing mechanism provided downstream in a recording medium conveying direction of the thickness sensor and configured to remove the recording medium in a direction perpendicular to the recording medium conveying direction; a control unit configured to remove, if the control unit determines that the recording medium is unconveyable, the recording medium from a recording medium conveying path with the recording medium removing mechanism; and a heating roller configured to heat the recording medium to temperature equal to or higher than erasing temperature.