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Patent Searching and Data


Matches 851 - 900 out of 2,883

Document Document Title
JP62237069
PURPOSE: To control proportion of intake air passing a small venturi and to control an air-fuel ratio to an arbitrary value, an intake air passage in the outer periphery of the small venturi in which a main fuel nozzle is located is open...  
JP62237070
PURPOSE: To control release of a piston during operation when there is a small amount of intake air to maintain an air-fuel ratio at a proper value, by a method wherein an atmospheric pressure introduction hole communicated to a negative...  
JP62225755
PURPOSE: To aim at rationalizing the air-fuel ratio of an engine during starting and warm-up operation thereof, by providing a pressure balance type fuel system in which is fuel pressure regulator for controlling the fuel pressure downst...  
JP62218644
PURPOSE: To simplify a control program and supply proper air-fuel mixture, by disposing fuel pressure regulators in main and auxiliary passages to a negative pressure type carburetor and disposing a temperature sensing valve and an idle ...  
JP62214260
PURPOSE: To easily control the maximum output of an engine, by a method wherein, in a carburetter having an auxiliary throttle valve sliding in linkage with a manually-controlled main throttle valve, a means, regulating the maximum openi...  
JP62210250
PURPOSE: To improve drivability in a carburetor which assumes a feedback control by a step of controlling a bleed air quantity based on an oxygen sensor by adjusting the maximum value of the air bleed quantity depending on engine tempera...  
JP62210249
PURPOSE: To stabilize combustibility while the effect of an engine brake is being improved by actuating a throttle positioner at engine speed lower than that where fuel is cut off at the time of deceleration. CONSTITUTION: In a control d...  
JP62206252
PURPOSE: To maintain the optimum air-fuel ratio at the time of idling by controlling the mixture ratio regulating actuator of a carburetor when idling based on a pulse signal which is outputted from an air-fuel ratio sensor provided on a...  
JP62199952
PURPOSE: To smooth the closing operation of a throttle valve when an engine is sharply decelerated, by installing a subthrottle valve for introducing the cylinder side negative pressure onto the back surface onto the cylinder side of the...  
JP62195444
PURPOSE: To improve exhaust gas properties and running properties, by a method wherein, in a carburetter which control an air-fuel ratio by feedback by means of an output from the O2 sensor of an exhaust system, when the output from the ...  
JP62191650
PURPOSE: To feed fuel to each of cylinders of a multiple cylinder engine synchronized with its intake stroke by providing a subsidiary fuel feed passage which is interlocked with a closing valve, an air bleed for feeding air to said pass...  
JP62191651
PURPOSE: To improve accelerating performance by providing a connecting passage for introducing the discharge side of an accelerating pump to a float chamber and a closing valve which is opened at the time determined in accordance with th...  
JP62191649
PURPOSE: To feed fuel to each of cylinders of a multiple cylinder engine synchronized with its intake stroke by providing a fuel feed passage which is opened by the opening action of an inlet valve and a control means which reduces press...  
JP62191652
PURPOSE: To carry out the regulation of a proper fuel feeding quantity at all times by providing a fuel pressure regulator operated by the negative pressure of a negative pressure source, in a fuel passage connecting a fuel outlet which ...  
JP62189342
PURPOSE: To obtain an optimum control signal gain in a wide operational range from idling to high-speed running, by storing in a storage element a proportional component and an integral component in an air-fuel ratio feedback control, re...  
JP62189357
PURPOSE: To improve accelerating response at a time of low temperature, by providing a device to make a fuel passage area variable in accordance with temperature, downstream from a fuel passage for the accelerating pump of a carburetor. ...  
JP62186046
PURPOSE: To enhance the acceleration performance at low temps. by connecting two acceleration nozzles to an acceleration fuel path having an acceleration pump, and furnishing an opening/closing valve to open and close one of the accelera...  
JP62186047
PURPOSE: To provide high precision controllability for the air-to-fuel ratio over a wide range by furnishing an aux. fuel passage having an opening at a venturi, apart from a fuel passage which includes a measuring jet wherein a measurin...  
JP62174555
PURPOSE: To improve feed precision of auxiliary fuel, by a method wherein an electromagnetic fuel injection pump is situated in attendance with a carburetter, and injection fuel is injected with the aid of the injection pump driven accor...  
JP62174556
PURPOSE: To improve the control speed of an air-fuel ratio, by a method wherein, in a device which has an electromagnetic type injection pump attached to a carburetter, when an air-fuel from main fuel, air bleed of which is controlled, i...  
JP62159755
PURPOSE: To decrease variations in air-fuel ratio caused by changes in the operating condition of an engine, by providing a solenoid valve for performing feed-forward control of the air-fuel ratio in accordance with the operating conditi...  
JP62159754
PURPOSE: To aim at enhancing the driveability of a vehicle during transition into high load operation, by carrying out the opening operation of a valve device for driving a power valve and the operation of setting the area of a bypass pa...  
JP62157269
PURPOSE: To obtain a carburetor of good responsiveness by making a negative pressure introduction hole for a vacuum piston and a fuel supply line open and close through interlinking with opening and closing of a throttle valve mounted fr...  
JP62153552
PURPOSE: To stabilize control by detecting the relaying region between the primary system and the secondary system and compulsorily generating the rich state and then returning to the feedback control when the rich signal is obtained in ...  
JP62150061
PURPOSE: To make it possible to regulate fuel flow rate in a main passage freely by arranging a regulating member for bypassing air from an upper part of a large venturi either to its narrowest section or to a lower section. CONSTITUTION...  
JP62142851
PURPOSE: To prevent the reduction in torque of a two-cycle engine and the like by controlling the quantity of corrective air bleed by use of imbalance of negative pressure generated accompanied with the opening/closing of a throttle valv...  
JP62139957
PURPOSE: To prevent foams from getting larger at the time of operating a solenoid valve and carry out a stable air-fuel ratio control by providing a porous member on a main jet part which is opened and closed by means of said solenoid va...  
JP62131958
PURPOSE: To prevent the scattering in air-fuel ratios through analogically controlling air-fuel ratios by providing the fuel control unit of a carburettor with a valve operated under negative pressures, and then controlling said negative...  
JP62131959
PURPOSE: To prevent the fuel pulsation and at the same time, improve the control responsiveness by providing a negative pressure operated valve on the fuel control unit of a carburettor, and also a secondary supplying valve on the downst...  
JP62129551
PURPOSE: To make carbon preventable from sticking to a mixture compensating slow-air feed port in utilization of detergency by dint of slow-system fuel, by opening the said air feed port to a slow mixture passage at the downstream side o...  
JP62129553
PURPOSE: To prevent an air-fuel ratio from going to the rich side as well as to improve a rate of fuel consumption, by letting a controller perform on-off control over a slow cut valve at a time when air-fuel ratio compensation value is ...  
JP62129554
PURPOSE: To prevent an engine from malfunctioning temporarily at the time of its starting at high temperature, by setting an air bleed quantity, when a float chamber or the like is in a high temperature state, in conformity with a contro...  
JP62126257
PURPOSE: To prevent supply of fuel from decreasing when a Venturi is opened to a high degree, by supplying bleed air of pressure, in which a pressure in a Venturi part is added in addition to the atmospheric pressure, to a secondary main...  
JP62121850
PURPOSE: To make the discharge rate of an accelerating fuel proper by independently opening a fuel introducing passage from a float chamber, a fuel delivery passage to an accelerating nozzle, and a leak passage via a temp. sensing valve,...  
JP62121852
PURPOSE: To operate an accelerating pump smoothly by providing a passage for circulating fuel in said accelerating pump into a float chamber, on said accelerating pump for the liquid fuel carburetor of an engine which selectively uses ga...  
JP62113855
PURPOSE: To make it possible to protect a learned value from the effect of vapor evaporation of fuel etc. by prohibiting the learning of specified load range when a carburetor is in high temperature condition, in the case wherein an air-...  
JP62113853
PURPOSE: To prevent unnecessary fuel discharge by making it possible to lock a diaphragm by the action of the second diaphragm at stoppage of an engine or in high temperature condition thereof in the case wherein a pump action is obtaine...  
JP62113854
PURPOSE: To make it possible to accurately open or close plural fuel passages by constituting a valve body which opens and closes plural fuel passages with a valve plate fixed to the tip of a solenoid valve movable rod and a plural seal ...  
JP62099663
PURPOSE: To enable a more secure driving of a step motor by operating it so as to have a prescribed normal or reverse rotation characteristic in response to the deviation value in the target step number and the actual step number, when t...  
JP62096768
PURPOSE: To improve the accelerating performance, in a system where a starter valve is opened and a rich fuel is fed at start of engine, by opening the starter valve when the opening of a throttle valve is wide while the intake negative ...  
JP62093479
PURPOSE: To improve a check effect, by providing a check value in a fuel supply line and forming a fuel inflow direction side into a recessed shape while an opposite side into a cylindrical or polygonal pyramid shape, in the case of an a...  
JP62091648
PURPOSE: To allow air to flow smoothly with the provision of the shorter length of duct by integrating both a main passage which communicates an air cleaner with an intake port of a carburator, and a sub-passage which communicates the ai...  
JP62078457
PURPOSE: To decrease the size of a device and a cost, by a method wherein, in a titled carburetter of a variable venturi type, a negative pressure responding valve, opening and closing a suction passage, and a slide throttle valve are po...  
JP62070650
PURPOSE: To reduce an air surplus ratio at a high engine load operation so as to increase the output with a rich fuel air mixture provided by providing a valve which effects the closing motion of a fuel by-pass port linked with the throt...  
JP62067264
PURPOSE: To aim at the promotion of smoothness in piston operation and improvement in durability, by producing a suction piston of a variable choke type carburetor with plastics being mixed with such a filler that makes a molding contrac...  
JP62063161
PURPOSE: To improve the precision in flow-rate adjustment particularly in the intermediate or high speed range by installing the secondary correcting air nozzle for taking in the pressure at the following wake side part of the venturi pa...  
JP62060972
PURPOSE: To prevent drivability from getting worse, by discharging gasoline in addition to alcohol or main fuel for the duration from engine starting to the completion of its warming up, and automatically selecting the rate of the main f...  
JP62055447
PURPOSE: To enhance the follow-up capability at the time of a high load by making the lean side integration constant of the integration circuit of an air-fuel ratio feedback control device at the time of high load larger than that at the...  
JP62055448
PURPOSE: To prevent an engine torque from being abruptly changed by stopping a feedback control of an air-fuel ratio so as to hold a flow rate control valve of a carburetor at the specified position at a time when a secondary throttle va...  
JP62051745
PURPOSE: To eliminate a conventional calking step to enhance the productivity of vacuum actuated valves each of which is elevated in accordance with vacuum in an intake-air passage, by providing an upper plate cooperating with the engagi...  

Matches 851 - 900 out of 2,883