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Patent Searching and Data


Matches 651 - 700 out of 2,883

Document Document Title
JP03151557
PURPOSE: To enhance the control stability of the carburetor of a small internal combustion engine suited for a chain saw and the like by sensing the dynamic and static components of engine-tuned pressure waves applied to airflow in a ven...  
JP03151556
PURPOSE: To prevent mixture from becoming lean when an engine is operated at low speed with a throttle valve wide open by providing an amount of fuel increasing passage for supplying fuel from inside a fuel reservoir to each air intake o...  
JP03151552
PURPOSE: To prevent mixture from becoming lean when an engine is operated at low speed with a throttle valve wide open by providing an amount of fuel increasing pump within an amount of fuel increasing passage which supplies fuel from in...  
JP03151551
PURPOSE: To prevent mixture from becoming lean when an engine is operated at low speed with a throttle valve wide open by controlling according to the operating condition of the engine a control valve which controls communication between...  
JP03149332
PURPOSE: To prevent increase in combustion speed and generation of NOx when a combustion chamber is at high temperature by detecting light inside the chamber, and controlling air-fuel ratio by means of the level of the combustion speed u...  
JP03141855
PURPOSE: To improve the restartability of an engine at the time of high temperature and the delivery characteristic of an accelerator pump at the time of lenient acceleration and frequent stepping-on acceleration by holding an outlet val...  
JP03138441
PURPOSE: To prevent the unloaded excessive revolution by opening/closing-controlling and electromagnetic opening/closing valve on the basis of the signal of the primary coil of a flywheel magneto, in an engine having an electromagnetic o...  
JP03124949
PURPOSE: To improve drivability and start-up performance of an engine and the like at a cooling time in a wide range of low-high places by properly adjusting an air-fuel ratio in response to variation of atmospheric pressure at the cooli...  
JP03124948
PURPOSE: To secure stable drivability at a high load range by adjusting an air-fuel ratio to be within a stable range at all revolution ranges and properly adjusting the air-fuel ratio in response to variation of atmosperic pressure, whe...  
JP03096647
PURPOSE: To quickly correct the mixture ratio of a mixture by controlling fuel with a fuel control mechanism in association with a throttle displaceable in a nozzle communicating with a suction pipe associated with an accel pedal to corr...  
JP03085348
PURPOSE: To carry out stable engine operation in each driving state by controlling an opening/closing valve by which a fuel force feeding route is opened and closed, so as to increase the fuel quantity at the time of starting, accelerati...  
JP03070847
PURPOSE: To prevent the occurrence of back bleed and prevent the interruption of a slow mixed air correcting air in normal engine operating state other than back bleed generating area by interrupting the slow mixed air correcting air in ...  
JP03067055
PURPOSE: To shorten the moving distance of an actuator till the stop position of the target air-fuel rtio by deciding the closing direction motion limiting step position of the actuator in the period from fuel cut disengagement of actuat...  
JP03043651
PURPOSE: To reduce the frequency of use of the driving source of an air-fuel ratio control valve by gradually extending the time for changing the opening of the air-fuel ratio control valve when the engine rotating speed is stabilized at...  
JP03037364
PURPOSE: To solve acceleration defective with a simple system by providing a mean which keeps a choke valve to open unwidely and temporarily at the time of opening a throttle vale rapidly. CONSTITUTION: Throttle valves 5 and choke valves...  
JP03037365
PURPOSE: To solve acceleration defective with a simple system by controlling the energizing to a choke solenoid so as to close a choke valve until engine speed is more than a specified value at the time of opening a throttle valve rapidl...  
JP03037366
PURPOSE: To facilitate the setting of fuel discharge quantity by forming an auxiliary fuel feeding passage through branching from the middle part of a fuel feeding passage for the acceleration pump device of a carburetor which increases ...  
JP03003953
PURPOSE: To shorten various tests for improving the performance of a fully- opened low-speed operation region and improve the product development efficiency by operating a driving actuator at the time of the fully-opened low-speed operat...  
JP03003954
PURPOSE: To shorten various tests for improving the performance of a fully- opened low-speed operation region and improve the product development efficiency by operating a driving actuator at the time of the fully-opened low-speed operat...  
JP03003952
PURPOSE: To shorten various tests for improving the performance of a fully- opened low-speed operation region and improve the product development efficiency by operating a driving actuator at the time of the fully-opened low-speed operat...  
JP02308955
PURPOSE: To enable smooth transit to feedback control by holding the step position of the actuator of an air bleed control device at the slightly lean air- fuel mixture side while closed loop control is performed by a fuel cut action dur...  
JP02308957
PURPOSE: To dissolve the response delay of the air-fuel ratio by outputting the signal driving an actuator at a high speed to an air bleed control device when the conditions of feedback control are satisfied after the complete explosion ...  
JP02308956
PURPOSE: To improve driveability by performing the actuator control of an air-fuel ratio control device at the optimum control for the water temperature of the engine cooling water in the low-temperature area, intermediate- temperature a...  
JP02301654
PURPOSE: To automatically correct the quantity of the air-fuel mixture by providing a solenoid valve on a control unit to regulate the cycle of excitation as the function of the present value of a working parameter, providing a device to...  
JP02283833
PURPOSE: To maintain combustion of an engine at a stable and high-efficient state by a method wherein, in an engine for an outboard engine vertically inclinably mounted to a ship hull, an amount of fuel fed to an engine is controlled acc...  
JP02264144
PURPOSE: To rationally and effectively perform automatic correction of the composition of supply mixture by blocking the lower end of a second vertical pipe by the bottom surface on which a calibrated hole penetrates, and forming a throu...  
JP02256860
PURPOSE: To prevent the fuel from back-spill even in the condition that an outboard engine is tilted up, by locating a discharge nozzle, for the fuel supplied through a solenoid valve, downstream a throttle valve of a carburettor, and th...  
JP02256861
PURPOSE: To prevent excessive environmental pollution by providing a main air intake connected to an intake conduit on the downstream side of a carburetor shutter, a mixture supplying injector in the minimum-speed operation, an injector ...  
JP02207175
PURPOSE: To correct the composition of a gaseous mixture upon a change in loading state of an internal combustion engine by connecting a fuel metering unit, which is coupled with a throttle body of a contraction-diffusion nozzle opening ...  
JP02207174
PURPOSE: To accurately pre-control a gaseous mixture by coupling a throttle body of a contraction-diffusion nozzle opening in an inlet pipe with a metering member of a metering unit disposed in a fuel conveyor line opening in the nozzle ...  
JP02199259
PURPOSE: To cause an acceleration pump to be suited for a carburetor having various features by a method wherein a leak amount regulating rod is connected to the diaphragm of a pump chamber, and a plurality of leak holes are formed in a ...  
JP02191855
PURPOSE: To effectively suppress catalytic converter rhodium from overheating by releasing a control by a feedback control means, fixedly holding a flow control valve and changing its position by stages to a low opening side till output ...  
JP02191856
PURPOSE: To display excellent performance of acceleration by clamping in acceleration time a solenoid valve for the predetermined time to a duty value obtaining a mixture of concentration higher than the duty value before next restarting...  
JP02188654
PURPOSE: To keep the air/fuel ratio of a mixture at a proper value and prevent engine stall by opening/closing a flow control valve for regulating air-fuel ratio at a low speed based on the output of an oxygen sensor, at the time of swit...  
JP02188655
PURPOSE: To simply and surely prevent the occurrence of after burn, etc., by removing the control of a flow control valve based on an oxygen sensor and keeping the flow control valve in a defined position when engine speed at the time of...  
JP02163450
PURPOSE: To make improvements in a stable supply of fuel at a low speed driving range, a transient characteristic of engine performance at time of sudden acceleration or the like and its responsiveness by interconnecting a float chamber ...  
JP02161160
PURPOSE: To improve the piping-ability of each fuel route for increasing the quantity of fuel by attachedly providing a pressure regulator on a fuel force feed passage which is in a line to a fuel supply passage for an engine of an outbo...  
JP02123269
PURPOSE: To supply the accelerating fuel continuously from the initial stage to the final stage of acceleration by forming the piston of an accelerating pump into cylindrical form and arranging a damper valve and a spring inside the pist...  
JP02108841
PURPOSE: To ensure the operation of a fuel supply device provided with an incremental fuel system against any functional trouble in the switching valve by forming a by-path passage so as to bypass the switching valve in the incremental f...  
JP02104959
PURPOSE: To reduce the space of outfitting by feeding fuel to an engine combustion chamber via a first pump carrying out increased feeding to the engine combustion chamber via a second pump and a valve device, and providing the second pu...  
JP02102367
PURPOSE: To make it possible to control highly accurately regardless of the variation of the flowing current by applying a current to the opened side coil and the closed side coil of a rotary solenoid alternatively, and controlling the d...  
JP02102357
PURPOSE: To prevent an engine from rattling at the time of running at constant engine revolution by holding the step position of an actuator at a position wherein mixture for low engine revolutions becomes somewhat rich regardless of inp...  
JP02078764
PURPOSE: To prevent overheat of catalyser and improve drivability by controlling movement of an air bleed controller, according to difference between the present position and the target position of the air bleed controller and increasing...  
JP02042166
PURPOSE: To properly control the mixing ratio of fuel even when the negative pressure in an intake pipe coincides with the atmospheric pressure by controlling a solenoid valve in response to engine parameters and injecting fuel into the ...  
JP02040062
PURPOSE: To improve startability right after the starting of an engine and to improve fuel consumption by a method wherein a starter system is communicated to a main system through an air passage, and an amount of air fed through an air ...  
JP02040063
PURPOSE: To improve the atomizing performance of fuel so largely by forming a vacuum responding valve with a plastic material containing conductive materials, while making an electric current flow in this vacuum responding valve, in a ca...  
JP02011957
PURPOSE: To make link rod assembleable in a subassembly state by installing a rod insert groove, opening to a side end and extending over both upper and lower ends, in a hook part of a turning lever, and also installing a thrust inhibiti...  
JP02011857
PURPOSE: To control solenoid drive frequency with no roughing of air fuel ratio (A/F) through entire range of engine drive, by making a solenoid drive frequency H proportional to the engine speed R, so as not to make a R/30H value an int...  
JP02009934
PURPOSE: To adjust the air-fuel ratio in steps within a fine range, activate the response of an oxygen sensor, and improve the convergence of the air-fuel ratio by providing a reverse skip in the middle of the integration of the opening ...  
JP02008571
PURPOSE: To enable a high-precision and stable multi-stage control by providing a plurality of shape memory alloys and a plurality of electric resistance exothermic bodies corresponding to each of the aforesaid shape memory alloys in a c...  

Matches 651 - 700 out of 2,883