摘要:
An engine breather system is formed from a first breather chamber communicating with a crank chamber formed within a crankcase, a second breather chamber communicating with the crank chamber as well as with an intake system, a communicating passage connecting the first and second breather chambers, and a one-way valve. The valve is provided at an open end on the second breather chamber side of the communicating passage, so as to prevent breather gas from flowing from the second breather chamber toward the first breather chamber. The one-way valve is provided with a pressure relief hole, which prevents oil from leaking into the intake system accompanying continued operation of the engine in an attitude different from its normal attitude.
摘要:
A liquefied paper material is used as raw materials. A paper frame member 1 supporting a vibrating plate is paper-skimmed and formed. On paper-skimming and forming, a central hole for use in voice coils, air-release hole 1a releasing air pressure in a rear of the vibrating plate to outside due to vibration of the vibrating plate. A loudspeaker system is manufactured using the paper frame member 1.
摘要:
In a four-channel stereophonic reproducing system of the type in which a first, second, third and fourth audio signals are reproduced from two stereophonic composite signals which are respectively comprised of a left side signal consisting of a main channel signal composed of the sum of the first and second audio signals and a sub-channel signal obtained by frequency modulating or phase modulating the difference between the first and second audio signals, and a right side signal consisting of a main channel signal composed of the sum of the third and fourth audio signals and a sub-channel signal obtained by frequency modulating or phase modulating the difference between the third and fourth audio signals, a detector circuit for detecting each sub-channel signal is followed by a filter circuit for eliminating undesired higher frequencies whereby to eliminate higher audio frequencies including increased noise components to improve the S/N ratio, and at the same time a phase correction circuit is provided in the reproducing section for each main channel signal to correct for any phase distortion due to the filter circuit whereby to ensure a greatly improved separation.
摘要:
A liquefied paper material is used as raw materials. A paper frame member 1 supporting a vibrating plate is paper-skimmed and formed. On paper-skimming and forming, a central hole for use in voice coils, air-release hole 1a releasing air pressure in a rear of the vibrating plate to outside due to vibration of the vibrating plate. A loudspeaker system is manufactured using the paper frame member 1.
摘要:
Pyrazolo�1,5-a!pyrimidine derivatives of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are H, carboxyl, lower alkoxy-carbonyl, phenyl, lower alkyl optionally having a substituent selected from OH, carboxyl and lower alkoxy-carbonyl, or cycloalkyl, or R.sub.1 and R.sub.2 may combine each other to form lower alkylene; R.sub.5 is group of --SR.sub.6 or group of --NR.sub.7 R.sub.8 in which R.sub.6 is pyridyl or phenyl optionally having 1 to 3 substituents selected from OH and lower alkyl; and R.sub.7 and R.sub.8 are H, phenyl optionally having 1 to 3 substituents selected from OH, lower alkyl, lower alkoxycarbonyl and carboxyl, or R.sub.7 and R.sub.8 may combine each other to form with a nitrogen atom with which they bond 1-pyrrolidinyl, 2-oxo-1-pyrrolidinyl, or 1-piperazinyl group substituted by a phenyl group optionally being substituted by halogen or trihalomethyl, hydroxy-lower alkyl or diphenyl-lower alkyl, or a salt thereof, and anti-inflammatory agent containing as active ingredient compound of the above formula, wherein R.sub.1, R.sub.3 and R.sub.4 are H, R.sub.2 is lower alkyl or cycloalkyl, R.sub.5 is group of --NR.sub.7 R.sub.8 (R.sub.7 is H, R.sub.8 is phenyl substituted by OH and two lower alkyl).
摘要:
A fuel injection system for an internal combustion engine comprises at least one fuel injection valve for supplying fuel into the intake passage of the engine, an electronic control unit responsive to operating conditions of the engine for controlling a time period over which the fuel injection valve is opened and timing for opening the fuel injection valve, a generator responsive to rotation of a flywheel for generating electric power, the generator being connected to an ignition device and the electronic control unit and forming power supplies for driving the ignition device and the electronic control unit, a fuel pump arranged to be driven in unison with the flywheel by torque transmitted from the flywheel, and a pressure regulator for controlling pressure of fuel supplied from the fuel pump to the fuel injection valve.
摘要:
Disclosed is an engine fuel supply apparatus which can be made smaller in size and in which the amount of fuel in an air-fuel mixture can be increased with a fast response in correspondence with the operation of a throttle valve when the engine is accelerated rapidly. The fuel supply apparatus is provided with a fuel booster pump. A portion of an air-fuel mixture is introduced into a negative-pressure chamber of the fuel booster pump via a negative-pressure chamber channel, and the fuel booster pump is actuated. The actuation forces air in a pump chamber to flow into a pressure chamber, and fuel in a fuel storage chamber is temporarily supplied to a carburetor.
摘要:
A time divided digital signal transmission system includes a transmitter for converting plural analog signals to digit signals, generating multiplexed time divided signals from the digital signals, and transmitting the multiplexed time divided signals by a digital data transmission circuit. The system further includes a receiver for receiving the multiplexed time divided signals, demultiplexing the multiplexed time divided signals so as to thereby obtain the original digital signals and converting the original digital signals back into the original analog signals. The system is arranged to effectively utilize both synchronizing signals and clock signals for the analog to digital conversion and the digital to analog conversion in the system.
摘要:
A compatible discrete four-channel (CD-4) stereophonic reproducing system which comprises a detecting circuit for detecting a sub-channel signal. A control means detects an over-deviation of the sub-channel signal and deactivates a noise elimination switching circuit connected in a stage following the detecting circuit when the over-deviation signal appears, thereby preventing an output from being transmitted from the detecting circuit to succeeding stages. A distortion reducing circuit is also provided. This circuit is responsive to an output of said control means for attenuating at least a high frequency band of an output of the switching circuit for a predetermined time period, this period being longer than the period for which the over-deviation signal appears. Consequently, the noise produced by various causes can be effectively eliminated.
摘要:
Disclosed is an engine fuel supply apparatus which can be made smaller in size and in which the amount of fuel in an air-fuel mixture can be increased with a fast response in correspondence with the operation of a throttle valve when the engine is accelerated rapidly. The fuel supply apparatus is provided with a fuel booster pump. A portion of an air-fuel mixture is introduced into a negative-pressure chamber of the fuel booster pump via a negative-pressure chamber channel, and the fuel booster pump is actuated. The actuation forces air in a pump chamber to flow into a pressure chamber, and fuel in a fuel storage chamber is temporarily supplied to a carburetor.