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JPS623160A |
PURPOSE: To prevent too lean air-fuel ratio when an engine is running without load by interposing a linear type solenoid valve in an intake secondary air passage and by closing the solenoid valve under the condition of the engine running...
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JPS62159U |
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JPS62761U |
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JPS6146198Y2 |
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JPS61294269A |
PURPOSE:To prevent an effect of vacuum from an intake pipe which injures operation of a diaphragm, by air-tightly isolating a cylinder portion and an inner space of a main body on a valve side. CONSTITUTION:Depression of an accelerator p...
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JPS61204954U |
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JPS61291754A |
PURPOSE: To reduce the fuel consumption while to increase the power by providing a mixture gas feed path for feeding mixture gas of air and additive liquid through open/close switching mechanism to the intake tube of internal-combustion ...
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JPS6145332Y2 |
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JPS6160257B2 |
An exhaust gas suppressor which suppresses the generation of harmful gases contained in exhaust gases from internal combustion engines, wherein secondary air is efficiently heated to high temperature by a double-tubed heater installed do...
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JPS61200969U |
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JPS61283741A |
PURPOSE: To reduce the consumption of electric power and the amount of heat generation, by providing a feed current control means for controlling the amount of current to a bimetal for driving a throttle valve in an intake-air passage in...
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JPS6143959Y2 |
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JPS6143960Y2 |
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JPS6143956Y2 |
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JPS6143957Y2 |
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JPS6143958Y2 |
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JPS61277858A |
PURPOSE: To improve operability through prevention of the occurrence of surging phenomenon, by a method wherein, when it is detected that the temperature of intake air to an engine is increased to a given high value, an air control valve...
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JPS61277860A |
PURPOSE: To simplify structure through miniaturizing the size of a passage on-off valve, by a method wherein secondary air in a necessary amount responding to an operating condition is fed through selective opening of one or plural valve...
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JPS61277859A |
PURPOSE: To enable an air-fuel ratio to be rapidly corrected to a value in the vicinity of a theoretical air-fuel ratio and to improve operability, by a method wherein, when the temperature of engine cooling water is decreased to lower t...
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JPS61277832A |
PURPOSE: To supply the mixed gas with the optimum air-fuel ratio into an engine by forming an air passage which bypasses the upstream side and the downstream side of a throttle valve in an intake passage and an air control valve which is...
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JPS6157465B2 |
An exhaust gas recirculation system for an internal combustion engine employs a first control valve in an exhaust gas introduction passageway, a second control valve in an air conduit connecting the engine intake passage to atmosphere, a...
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JPS61275556A |
PURPOSE: To make rich the air-fuel ratio quickly thus to prevent degradation of operationability by quickly closing an air control valve arranged in secondary intake air supply path when transferring to the operation for stopping air-fue...
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JPS61275558A |
PURPOSE: To improve the operationability by quickly closing an air control valve arranged in intake secondary air supply path upon detection of low temper ature no-load engine thereby avoiding over leaning of air-fuel ratio. CONSTITUTION...
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JPS61194759U |
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JPS6140911Y2 |
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JPS61261649A |
PURPOSE: To improve operability and exhaust gas purification function by forming a valve opened or closed in accordance with air fuel ratio in one of the 2 secondary sucked air supply channels in the downstream of a throttle valve and an...
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JPS61258962A |
PURPOSE: To promote vaporization of fuel thus to stabilize the combusting condition by providing a fresh air lead-in path opening to an intake path while directing along the wall face of intake path and leading fresh air into the suction...
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JPS61181865U |
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JPS6139103Y2 |
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JPS61250369A |
PURPOSE: To improve control accuracy of air-fuel ratio, by correcting a reference valve opening time in accordance with an output from an O2 sensor when an engine operative condition is in the first operation region while setting the ref...
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JPS61250382A |
PURPOSE: To reduce power comsumption, vibration and noise, by driving an air pump, which generates pressurized air, through an electric motor and constituting a device of the electric motor driven pump, drivably and stoppably constituted...
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JPS61250370A |
PURPOSE: To prevent abnormal combustion in an engine and perform its normal restarting, by supplying secondary air into a mixture inducted in a cylinder so as to both dilute the mixture and decrease its temperature, when the internal com...
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JPS61178065U |
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JPS61175554U |
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JPS6137816Y2 |
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JPS61175679U |
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JPS61173749U |
An air intake side secondary air supply system for an internal combustion engine having an air intake system using a carburetor and an air intake side secondary air supply passage leading to the downstream of the carburetor, and equipped...
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JPS6149496B2 |
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JPS61241457A |
PURPOSE: To prevent the deterioration of operation performance on load variation by correcting the standard valve opening time in accordance with the result of the air-fuel ratio judgement on the basis of the shift position of a transmis...
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JPS61241458A |
PURPOSE: To improve fuel consumption on a highland by correcting the standard valve opening time according to the result of the air-fuel ratio judgement on the basis of the magnitude of the atmospheric pressure and the output level of an...
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JPS61241454A |
PURPOSE: To prevent the deterioration of operation performance and engine stall due to the over-lean state of air-fuel ratio by carrying out the air-fuel ratio control in the use of only the duty ratio range in which the flow rate of the...
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JPS61241455A |
PURPOSE: To avoid the abnormal state in air-fuel ratio control due to the trouble of an oxygen concentration sensor by carrying out the air-fuel ratio control in the use of only the duty ratio range in which the flow rate of the secondar...
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JPS61241459A |
PURPOSE: To prevent the deterioration of the operation performance independently of the shift position of a transmission and operation state by closing an opening/closing valve when the shift position is at low speed position or the magn...
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JPS61171863U |
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JPS6148623B2 |
An idling control apparatus for an internal combustion engine includes a valve element amounted in a passage for air for idle running of the engine bypassing a throttle valve mounted in a suction conduit for communicating a portion of th...
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JPS61166151U |
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JPS61166159U |
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JPS61164445U |
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JPS6145052B2 |
An internal combustion engine for a vehicle has an exhaust gas recirculation system for returning exhaust gases to the engine intake passage. The carburetion system for the engine includes a fuel enrichment valve. Sensors for high vehicl...
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JPS61159658U |
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