摘要:
An auto-tensioner for a belt has a cylindrical body having a bottom. A nut formed with female threads on its inner periphery and having a rod integrally formed at one end is slidably mounted in the body. A bolt is mounted in the body so that its male threads will engage the female threads on the nut. A belt loading spring is mounted between the nut and the bottom of the body to urge the nut in such a direction as to increase the tension to the belt. A bolt turning spring is mounted between the nut and the bolt to urge and turn the bolt in such a direction as to be pressed against the bottom of the body or in a direction away from the nut. Thus the nut and the bolt are moved either toward or away from each other according to the load from the belt which acts on the rod so as to automatically adjust the tension to the belt.
摘要:
The present invention relates to fuel injection device characterized by comprising a main body having an axial cylindrical bore, a fuel supply port, a plurality of fuel metering ports, and a plurality of fuel distributing ports communicating with said fuel metering ports; a rotor having an inlet port communicating with said fuel supply port in said main body, a single metering port associated with said metering ports in said main body, and a hole communicating with said two ports; means for driving said rotor for rotation in synchronism with the rotation of an engine; control means for axially sliding said rotor in unique association with the amount of suction air; and fuel supply means for supplying fuel to the fuel supply port in the main body through a pressure regulating valve, the arrangement being such that the length of time for communication between each metering port of the main body and the metering port of the rotor is controlled in connection with the r.p.m. of the engine and the amount of suction air, while the operation (total amount of suction air)/(engine r.p.m.) and the metering and distribution of fuel are performed.
摘要:
An air/fuel ratio compensating device is provided for association with an internal combustion engine having a fuel control valve, air suction pipe means and pedal accelerator means, the compensating device including an area flow metal system made up of a flow detection valve positioned upstream in the air suction pipe means and operatively associated with the fuel control valve, a flow control valve positioned downstream in the air suction pipe means in series with the flow detection valve and being operatively connected to the accelerator pedal means, the area flow meter system enabling the difference in pressure existing on opposite sides of the flow detection valve to be maintained at a predetermined value to insure that the amount of air flow is proportional to the opening area of the flow detection valve thus permitting a determination of the amount of air flow on the basis of the opened area of the flow detection valve, a feedback control mechanism for controlling the area control flow meter and including pressure sensitive amplifier means to detect and amplify the deviation of the difference in pressure, valve opening means connected to the amplifier means and operatively associated with the flow detecting valve for opening and closing the flow detection valve by the output from the amplifier means, and compensating means for compensating for the set value placed in the pressure sensitive amplifier means according to the operating conditions of the internal combustion engine.
摘要:
A fuel injection device adapted to control the amount of injection by the opening time and opening area of a gate which is disposed in a fuel feed passage and which is controlled in connection with the engine rpm and the amount of suction air. The fuel injection device is characterized in that a choke is disposed between the fuel distributing port of a fuel measuring and distributing mechanism and the valve of an automatic valve type fuel injector, whereby the rate of flow and hence the rise time of pressure pulses applied to the injection valve are controlled to provide an accurate amount of injection.
摘要:
There is disclosed a fuel injection valve for internal combustion engines, which is used in combination with a fuel injection device for intermittent injection of fuel and which comprises a main body having a passageway extending between a fuel inlet and a fuel outlet, a valve member which cooperates with a valve seat disposed in the outlet and which is movable between a closed position and a fully open position in response to the pressure of the fuel fed into the passageway, the valve member being made up of a shaft member and a valve head, and is manufactured in such a way that a valve head made of a steel ball is welded by an instantaneous current passage welding process to one end of the shaft member and that the steel ball is cut perpendicularly to the axis on a smaller circle toward the shaft member than the equator of the steel ball so as to form an edge where the fuel jet flares.
摘要:
An air/fuel ratio compensating device is provided for association with an internal combustion engine having a fuel control valve, air suction pipe means and pedal accelerator means, the compensating device including an area flow metal system made up of a flow detection valve positioned upstream in the air suction pipe means and operatively associated with the fuel control valve, a flow control valve positioned downstream in the air suction pipe means in series with the flow detection valve and being operatively connected to the accelerator pedal means, the area flow meter system enabling the difference in pressure existing on opposite sides of the flow detection valve to be maintained at a predetermined value to insure that the amount of air flow is proportional to the opening area of the flow detection valve thus permitting a determination of the amount of air flow on the basis of the opened area of the flow detection valve, a feedback control mechanism for controlling the area control flow meter and including pressure sensitive amplifier means to detect and amplify the deviation of the difference in pressure, valve opening means connected to the amplifier means and operatively associated with the flow detecting valve for opening and closing the flow detection valve by the output from the amplifier means, and compensating means for compensating for the set value placed in the pressure sensitive amplifier means according to the operating conditions of the internal combustion engine.
摘要:
A rolling contact bearing assembly comprises an inner race member adapted to be mounted on a rotatable element and including a spacer disposed axially adjacent the inner race. This inner race member is formed with a lubricant reservoir for accommodating a lubricant and a lubricant flow passage communicating the reservoir with a space defined between the inner and outer race, in which space rolling elements are accommodated. At least a portion of said lubricant flow passage is defined by minute interstices which are formed by surface roughness left by surface roughening at an interface between mutual contact faces of a plurality of component parts forming the inner race member.
摘要:
A fuel injection apparatus of the type in which the degree of opening of a fuel measuring gate disposed in a fuel supply passage is controlled by air flow rate detecting means for detecting the rate of flow of air being sucked into an engine, and the amount of fuel is controlled by a solenoid valve adapted to be opened and closed by signals which detect the operating conditions of the engine, thereby compensating the air-fuel ratio, wherein a second solenoid valve is disposed in parallel with the first-mentioned solenoid valve and adapted to be opened and closed by the above-mentioned signals, so as to correct the basic air-fuel ratio which is set in connection with the air flow rate detecting means and the fuel measuring gate, thereby maintaining the air-fuel ratio at a desired constant value.
摘要:
A fuel feeding apparatus for internal combustion engines comprises an area type air flow rate measuring section in which the air flow rate is dependent on the displacement of an air flow rate detecting valve, and a fuel flow rate measuring and distributing section in which a variable orifice defined by a rotor and a stator determines the fuel flow rate proportional to the air flow rate. This apparatus is characterized by the provision of an exhaust gas sensor disposed in the exhaust pipe for the detection of the oxygen concentration of the exhaust gas in order to achieve the complete combustion of fuel in the internal combustion engine, the output signal from the exhaust gas sensor being used to compensate the fuel feeding pressure and a spring force which acts on the pressure difference setting diaphragm of a servo-mechanism.
摘要:
A continuously operable fuel injection device comprises a sleeve having a substantially triangular measuring window communicating with the outlet port of a main body, the sleeve being inserted in the cavity of the main body, and a control spool having an annular groove communicating with the inlet port of the main body through an axially extending hole and axially slidably inserted in the sleeve, the substantially triangular measuring window cooperating with the annular groove of the control sleeve to form a variable orifice. By axially sliding the control spool, any desired flow rate can be obtained.