摘要:
A compressor has a suction muffler structure capable of reducing vibration and noise accompanying liquid compression. The suction muffler structure involves a muffler chamber defined between a suction chamber of the compressor and an external coolant circuit. A suction passage connects the muffler chamber to the suction chamber. A liquid-storage space is formed in the region of the muffler chamber lower than the inlet of the suction passage to the muffler chamber.
摘要:
A drive plate or lug plate is supported on a drive shaft for integral rotation therewith. A cam plate is coupled to the lug plate by a hinge mechanism to integrally rotate with the drive shaft and tilt with respect to the axis of the drive shaft. The cam plate is coupled to a piston to convert the rotation of the drive shaft into linear reciprocating movement of the piston in a cylinder to compress gas supplied from an external circuit and to discharge the compressed gas outward from the cylinder. The hinge mechanism has a first guide pin projecting to the lug plate from the cam plate, a second guide pin projecting to the lug plate from the cam plate in a position following the first guide pin which is the leading pin with respect to the direction of rotation of the drive shalt, a first guide hole formed in a support arm projecting from the lug plate to receive the first guide pin and a second guide hole formed in a second support arm projecting from the drive plate to receive the second guide pin. The first guide hole is located in a position offset from the second guide hole away from the rear surface of the lug plate by a distance which corresponds to the amount of movement of the cam plate and first guide pin caused by compression reaction on the piston during the compression stroke.
摘要:
A housing of a compressor has a shutter chamber for accommodating a shutter. The shutter moves between a closed position, where the shutter stops flow of gas from an external circuit into a suction chamber, and an open position, where the shutter permits the gas flow in response to the tilting motion of a swash plate. A coil spring, which has a conical shape, is located in the shutter chamber to bias the shutter in a direction toward the open position from the closed position. The spring is arranged to prevent the spring from sliding against the inner wall of the shutter chamber when the spring is expanded or contracted by movement of the shutter member.
摘要:
The yaw moment reducing device comprises wheel speed sensors for detecting the speeds of the right and left wheels, an acceleration calculation device for calculating accelerations of the right and left wheels based on the speed of the right and left wheels, a substraction device for subtracting the difference in accelerations between the right and left wheels, a braking control device for controlling the braking force based on the difference of the accelerations, and a brake pressure modulating device for modulating the brake pressure which is supplied to each wheel. The wheel speeds of each wheel are detected by the wheel speed sensors. The acceleration calculation device calculates the accelerations of each wheel while the substraction device provides the difference in accelerations between the right and left wheels. The yaw moment is in response to the difference of the acceleration between the right and left wheels. In other words, the yaw moment can be presumed by the difference of the acceleration between the right and left wheels. The brake pressure modulating device modulates the brake pressure which is supplied to each wheel based on the calculation result of the braking control devices. Thus, the yaw moment can be controlled.
摘要:
An automatic sheet processing device mountable on a sorting unit of an image forming apparatus includes a sheet processor for applying a sheet processing to a sheet having a specified length and width, a moving unit capable of supporting the sheet processor for moving the sheet processor along a side of the sheet, and a controller having a storage unit for storing sheet processing data, a calculator for calculating a processing position from the sheet processing data, and a control portion for controlling the moving unit so as to move the sheet processor to the calculated processing position. The processing position is calculated from the stored sheet processing data, and the sheet processor is moved to the calculated processing position, so that sheet processing can be automatically.
摘要:
An image forming apparatus has an automatic original feeder for conveying an original along a path to a transparent platen. This automatic original feeder conveys the original to a position where it lies between the platen and an original conveying device which is disposed on a frame which can cover the transparent platen. The frame is rotatably supported by a supporting member. This supporting member is attached movably up and down relative to the main body of the apparatus and it is elastically urged downward. This biases the original conveying device downwardly, so that the pressure applied to the original by the original conveying device is properly maintained, thereby ensuring reliable conveyance of the original. Clearances between the original conveying device and an original cover plate on the frame are covered with clearance covering members, thereby to prevent an outline of the original conveying device from appearing in a transferred image. The supporting member can be attached to the main body of the apparatus through an adapter member, thereby allowing a single model of automatic original feeder to be mounted on different types of image forming apparatuses. The original conveying device is reversible, the transparent platen has an inclined surface at its infeed/outfeed end, and the feeder has holding extensions which hold down the infeed end of the platen on opposite sides of the original's path.
摘要:
An automatic document conveying device for use with an image processing machine having a transparent plate on which to place documents. The device includes an opening-closing frame and a document table. A conveyor roller is rotatably mounted in the opening-closing frame. A document delivery device is provided for delivering sheet-like documents from the document table. The document delivered from the document table is introduced into a required position on the transparent plate by the conveyor roller. The rotation of the conveyor roller in the introducing direction is stopped while the introduced document is still between the conveyor roller and the transparent plate. A guiding device which permits advance of the document from the document table to the transparent plate but hampers movement of the document from the transparent plate toward the document table and defects it upwardly, is provided between the document table and the conveyor roller. When the conveyor roller is rotated in the carrying direction, the document on the transparent plate is deflected upwardly by the guiding device and discharged through a discharge opening formed in the opening-closing frame.
摘要:
A channel selection apparatus having a double superhet tuner section (15) for converting one of a plurality of television channels contained in an input signal to a fixedly predetermined channel, includes an AFC circuit (11) for producing a frequency control voltage to execute closed-loop frequency control of the second local oscillator (5) of the tuner section while an AFC switch (16) is set in a first condition, whereas when the AFC switch is set in a second condition, a fixed frequency control voltage is applied to the second local oscillator and the frequency control voltage is applied to adjust the oscillation frequency of the first local oscillator (2) of the tuner section such as to compensate for any offset in the transmission frequency of a currently selected channel.
摘要:
A high frequency amplifier circuit based on an amplifying transistor, e.g. a dual-gate FET, having an A.G.C. voltage applied to a control terminal thereof to control the transistor DC operating current, has a diode connected between an input electrode of the transistor and a source of an input high frequency signal. All or part of the DC operating current of the transistor is passed through the diode as the operating current of the diode to thereby produce a high degree of attenuation by the diode when the transistor current level is small, so that reduced cross modulation interference is produced by the transistor when a high degree of gain reduction is executed by A.G.C. control.
摘要:
The present invention relates to a local oscillation apparatus which is used as a local oscillator of a communication apparatus or as a fixed local oscillator of a tuner. The present invention comprises a coaxial resonator (1) and an amplifying circuit (26) having an output end connected to a central conductive member of the coaxial resonator (1) through a first capacitor (2), an input end connected to the central conductive member through a second capacitor (3), and a variable capacitance diode (5) having one end connected to the central conductive member of the coaxial resonator (1) through a third capacitor (4) and the other end grounded so as to permit an alternating current only to be flowed. The circuit is characterized by such a constitution that an oscillation frequency is varied by a voltage applied to the variable capacitance diode (5), a cause of temperature drift of an oscillation frequency can be almost eliminated, and a stable oscillation can be accomplished by only compensation of the temperature characteristics of the coaxial resonator (1).