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JPS6285159A |
PURPOSE: To avoid for an air-fuel ratio to become over-rich by supplying without delay a secondary air to an engine immediately after its starting of acceleration by way of controlling, at the time of engine acceleration, a secondary air...
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JPS6285158A |
PURPOSE: To enable the supply of secondary air to be carried out properly even when an engine is in an operational phase where an electric current having a large value is supplied to a linear-type solenoid valve provided on an intake sec...
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JPS6282265A |
PURPOSE: To control an air-fuel ratio accurately so as to allow an engine to run stably at a time of idling and the like by restricting the quantity of secondary air flow passing through a secondary intake air supply passage when the eng...
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JPS6259753U |
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JPS6278466A |
PURPOSE: To prevent overthinning of fuel-air mixture, by a method wherein an air control valve and an on-off valve are respectively located in two intake secondary air feed passages extended around a throttle valve, and the opening of th...
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JPS6278463A |
PURPOSE: To prevent worsening of operating efficiency and failure in ignition, by a method wherein, when an output valve opening time, determined from a reference valve opening time of an on-off valve and a correction determined accordin...
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JPS6278468A |
PURPOSE: To prevent overthinning of fuel-air mixture, by a method wherein, in a device which feeds secondary air flowing around a throttle valve, when the number of revolutions of an engine is decreased to lower than a specified value du...
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JPS6257731U |
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JPS6278467A |
PURPOSE: To prevent overthinning of fuel-air mixture, by a method wherein an air control valve and an on-off valve are respectively located in two intake secondary air feed passages placed in a manner to be extended around a throttle val...
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JPS6278464A |
PURPOSE: To enable control of secondary air amount which reduces the occurrence of hunting, by a method wherein, from an reference valve opening time of an on-off valve and a correction value, determine by an output from an O2 sensor, an...
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JPS6278465A |
PURPOSE: To prevent worsening of operating efficiency during low load running, by a method wherein, when an absolute pressure in a suction pipe located down a line from a throttle valve is below a reference value, an on-off valve is clos...
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JPS6278462A |
PURPOSE: To enable control of a secondary air amount which decreases the occurrence of hunting, by a method wherein, from a reference valve opening time of an on-off valve and a correction value determined according to an output from a D...
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JPS6215740B2 |
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JPS6256738U |
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JPS6212852Y2 |
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JPS6252265U |
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JPS6249653U |
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JPS6249664U |
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JPS6213502B2 |
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JPS6212148Y2 |
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JPS6213510B2 |
An internal combustion engine is equipped with an air line for admitting supplementary air to the induction manifold or the exhaust manifold in order to compensate for an intentional air deficiency, so as to make the mixture stoichiometr...
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JPS6245353U |
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JPS6211316Y2 |
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JPS6210449Y2 |
An idling speed control device of an internal combustion engine comprising a bypass passage which interconnects the intake passage located upstream of the throttle valve to the intake passage located downstream of the throttle valve. A f...
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JPS6255450A |
PURPOSE: To improve the ignition performance of low grade fuel by atomizing fuel which is jetted from a injection valve, by an air flow atomizing means so as to allow the atomized fuel to be blown further into the inner surface of an ult...
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JPS6210455Y2 |
A vacuum operated valve mechanism for controlling transmission of fluid to servo means for emission control for an internal combustion engine or reducing emissions from the engine, including a single housing, a first and second diaphragm...
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JPS6210448Y2 |
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JPS6238452U |
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JPS6238443U |
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JPS629739B2 |
In an internal combustion engine having an air intake passage containing a throttle valve, and provided with passages to the outside from points upstream and downstream of the throttle valve, an auxiliary air regulator comprising a mount...
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JPS6234156U |
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JPS6234155U |
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JPS6234157U |
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JPS6234154U |
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JPS6245966A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6226553U |
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JPS626265Y2 |
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JPS626276Y2 |
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JPS626104B2 |
Apparatus for controlling exhaust gas recirculation in an internal combustion engine employs a first control valve in an exhaust gas recirculation passageway, a second control valve in an air conduit connecting the intake passage to atmo...
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JPS626091B2 |
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JPS624664Y2 |
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JPS624678Y2 |
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JPS624662Y2 |
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JPS6214143U |
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JPS6212766U |
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JPS6217327A |
PURPOSE: To plan both fuel saving and environment pollution prevention by disposing an exhaust gas resisting board, which can open and close, in the exhaust passage of an engine in said passage and a valve which opens and closes an open ...
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JPS623303B2 |
In an electronic engine control apparatus in which ignition timing and fuel injection quantity are calculated from the negative pressure in an intake manifold of the engine or from a flow rate of suction air and the rotational speed of t...
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JPS6210436A |
PURPOSE: To improve a response characteristic of a flow control valve and form it in a small size, by providing an auxiliary air control valve for introducing auxiliary air to a carburetor and controlling said auxiliary air control valve...
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JPS621100B2 |
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JPS623159A |
PURPOSE: To improve responsiveness in air-fuel ratio control of mixture by interposing a solenoid valve in an intake secondary air supply passage and by compensating a reference current value applied to the said valve in accordance with ...
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