摘要:
A scroll type compressor which includes a spacer between the fixed scroll base plate and the frame, with the spacer disposed about the orbiting scroll. The spacer is coupled to the fixed scroll and frame, and can be coupled to a center shell of the compressor, for example, by a shrinkage fit. Further, one or more bolts extend from the fixed scroll base plate through the spacer and into the frame. In addition, one or more bolts can be provided which extend from the spacer to the frame to provide for positioning of the spacer with respect to the frame.
摘要:
A scroll type compressor comprising: a crankshaft having an eccentric shaft portion formed thereon; an orbiting scroll which is given torque by the crankshaft through the eccentric shaft portion; and bearing means for rotatably supporting the crankshaft; wherein at least one of the eccentric shaft portion and the bearing means is constituted by a rotatably engaged bushing and a curved surface portion.
摘要:
An electric zoom camera comprises a photographing lens system having a zoom lens system, detecting device for detecting a focal length of the photographing lens system and generating a corresponding output, device for driving the photographing lens system for zooming, a commanding means for generating a command for executing zooming to the driving to device, and a control device for controlling the driving device, in accordance with the output from the detecting device and the command, to change a focal length of the photographing lens stepwise between focal lengths of a plurality of predetermined focal lengths arranged substantially in accordance with a geometric progression.
摘要:
A camera capable of operation in continuous photography and one-frame photography modes has an automatically activated flash device the operation of which may be inhibited by the user when desired. In a preferred embodiment, when the camera is in the continuous photography mode and the user has inhibited the flash device, the inhibition of the flash device is maintained upon completion of continuous photography. One-frame photography may be performed while the camera is in the continuous photography mode, and while maintaining inhibition of the flash device, by momentary depression of the shutter release button. If the camera is operated in the one-frame photography mode and the flash device is inhibited, inhibition of the flash device is automatically cancelled after each exposure.
摘要:
A scroll-type apparatus having an improved radial seal and a method for the assembly thereof is disclosed. The spiral wrap of a moving scroll and a stationary scroll are provided with gap adjusting means for providing a gap of a desired size between the top surface of the spiral wrap of each scroll and the top surface of the base plate of the opposing scroll. The gap adjustment means comprises a spiral-shaped elastic element which fits into a groove formed in the top surface of a spiral wrap or on top of a protrusion formed on the top surface of the spiral wrap, to form a nonpressurized seal. The elastic element is supported by the spiral wrap by friction, bonding, or solvent welding.
摘要:
A scroll compressor, such as may be used for a refrigeration compressor, having improved lubrication of bearing parts and sliding surfaces is disclosed. In accordance with the invention, the various components of the compressor, including both the orbiting and stationary scrolls and their driving components, are located in a housing, and lubrication passages are formed therein, such that an ample supply of lubricant is supplied to all bearing and sliding parts for all operating states of the compressor.
摘要:
A scroll-type fluid machine, preferably, a scroll-type compressor, having a small size and improved sealing between scroll members. An orbiting scroll is interleaved with a stationary scroll. A crank mechanism is provided for causing the orbiting scroll to undergo an orbiting motion. The crank mechanism includes a crankshaft and an eccentric ring rotated in an eccentric pattern by the crankshaft. Orbital movement of the orbiting scroll is transmitted from the eccentric ring to a shaft of the orbiting scroll. The distance between the center of rotation of the crankshaft and the center of the orbiting scroll shaft is made substantially equal to the radius of orbit when the center of rotation of the crankshaft, the center of the orbiting scroll shaft, and the center of rotation of the eccentric ring are arranged along a straight line in the stated order.
摘要:
A scroll compressor having an improved sealing arrangement. Ends of scroll wraps opposite end plates are formed with grooves extending longitudinally along their spiral surfaces. Spring members are fitted into lower portions of these grooves, and tip seals in the upper portions, opposite and in contact with the end plate of the opposite scroll. In one embodiment, the grooves are divided by partitions into segments and separate springs are disposed in each segment. In another embodiment, the springs have a zig-zag shape.
摘要:
An inverter control device includes a voltage detector, a target value calculation section, an inverter control section, an abnormality detector and a voltage clamp unit. The target value calculation section calculates a target value of an alternating current output from the inverter based on a detection voltage. The inverter control section controls a switching element of the inverter based on the detection voltage and the target value. The abnormality detector detects an abnormality in the voltage detector. The voltage clamp unit holds the detection voltage, for calculating the target value, at a first assured voltage determined based on a lower limit area of an assured voltage range that assures an operation of the inverter: and holds the detection voltage, for generating the control signal, at a second (higher) assured voltage, upon detecting the abnormality in the voltage detector.
摘要:
An inverter control device includes a voltage detector, a target value calculation section, an inverter control section, an abnormality detector and a voltage clamp unit. The target value calculation section calculates target value of an alternating current output from the inverter based on a detection voltage detected by the voltage detector. The inverter control section generates a control signal for a switching element of the inverter based on the detection voltage and the target value to control the inverter. The abnormality detector detects an abnormality in the voltage detector. The voltage clamp unit holds the detection voltage for calculating the target value at a first assured voltage determined based on a lower limit area of an assured voltage range that assures an operation of the inverter and holds the detection voltage for generating the control signal at a second (higher) assured voltage upon detecting the abnormality in the voltage detector.