摘要:
A refrigerant compressor comprises a compressor housing divided at least partially by a valve plate into a first chamber and a second chamber, the second chamber comprises a discharge chamber. An elastic valve member is capable of bending to open and close an end opening of the conduit. The valve member has a predetermined elastic modulus and is arranged such that the end opening of the conduit remains blocked until a pressure in the first chamber reaches a predetermined value. The valve plate includes a valve seat surrounding the end opening of the conduit and a recessed portion offset from the end surface of the valve plate. The recessed portion includes an inclined surface portion and a wall portion extending therefrom so that the elastic valve member closes the end opening of the conduit without striking the end surface of the valve plate due to an elastic restoring force of the elastic valve member. Noise and vibration caused by the striking of discharge reed valve against the valve plate are thus decreased. As a result, noise and vibration propogated to the passenger compartment of a vehicle are decreased.
摘要:
A fluid displacement apparatus comprises a valve plate member dividing a compressor housing into a first chamber and a discharge chamber. A passage is formed in the valve plate member to allow communication between the first chamber and the discharge chamber. An elastic valve member disposed on the valve plate bends to open and close the end of the passage. The valve retainer member is secured to the valve plate together with the elastic valve member and has a curved end portion. A valve seat includes a recessed portion offset from an end surface of the valve plate. The recessed portion includes an inclined portion and a wall portion extending therefrom. The distance between the beginning of the curved portion of the valve retainer member and the securing means is greater than the distance between an edge of the recessed portion of the valve seat and the securing means. Noise and vibration caused by the striking of discharge reed valve against the valve seat and the retainer member are decreased according to this arrangement.
摘要:
An automatic document feeder for use with an electrophotographic copier, digital copier or similar image recorder capable of transporting ordinary documents in the form of separate sheets and a continuous document in the form of computer form (CF) paper which is formed with equally spaced sprocket holes, as desired. A sprocket hole sensor is disposed on an imaginary line along which the sprocket holes of the CF paper are moved. A control device reversibly controls the transport of the CF paper to a predetermined reference position on a glass platen in association with the number of sprocket holes being counted. The document feeder is capable of not only copying a desired page of the CF paper but also implementing jam recovery in the event when a paper sheet jams the image recorder.
摘要:
A copying system has an automatic document feeder capable of feeding continuous original. This system has a device for inputting the number of sheets of the original to be copied, a counter for counting the number of copied sheets of the original, a comparator for comparing data outputted from the inputting device and the counter with each other, a body controller for controlling the copying operation of the copying system, and a feeder controller for outputting commands for feeding and discharging the sheets of the original to the automatic document feeder by the data from the comparator. The feeder controller outputs a copy processing signal to the body controller.
摘要:
A uniform orientation can be brought about to the liquid crystal material enclosed in a liquid crystal device by applying a shearing force to the liquid crystal material while an electric field is being applied to the liquid crystal material, without requiring disposition of orientation layers nor accurate control of temperature. The orientation method can be efficiently conducted by an apparatus comprising a supply roll for supplying and conveying the liquid crystal device, a roller having conductive orientation rolls for bending the conveyed liquid crystal device and for applying an electric field to the liquid crystal material, a power source for applying a voltage to the conductive orientation roll, and a receiving means for receiving the liquid crystal device which has gone through the bending.
摘要:
An oil level sensing apparatus has a body which defines a volume having an open bottom. A float in the volume supports a permanent magnet and moves within the volume in accordance with the oil level therein. A reed-switch is affected by the magnet supported on the float to detect a low oil level. A temperature sensitive plate closes the open bottom of the volume at low temperatures in order to prevent false readings. Additionally, in order to prevent false readings during transient oil level fluctuations at higher oil temperatures, a spring opposes the opening of the plate such that a restriction is formed in the path for draining oil from the volume. This delays the oil drainage from the chamber and any resulting low oil level signal.
摘要:
A color image processing apparatus for automatically feeding a plurality of documents one at a time and processing images printed on the documents. The apparatus automatically discriminates an image as to chromatic/achromatic without errors and thereby executes optimal image processing matching the kind of an image without resorting to operator's manipulations.
摘要:
A lead frame transfer device has a pair of guides and a transfer mechanism. At least one of the guides has a first guide rail adapted for moving in the widthwise direction of a lead frame, a second guide rail which is biased by a biasing mechanism to cause the second guide rail move toward the first guide rail in the widthwise direction of the lead frame so that the position of the second guide rail with respect to the first guide rail can be varied. Depending upon the widthwise size of a lead frame, the first guide rail of the guide is moved in the widthwise direction of the lead frame by a driving unit. In response to the movement of the first guide rail, the second guide rail is moved concurrently under by the force of a biasing mechanism and the lead frame can be held at a predetermined position under the pressure of the biasing mechanism.
摘要:
A liquid crystal optical element comprising: (a) an oriented ferroelectric liquid-crystalline polymer layer which exhibits chiral smectic C phase, and (b) two electrically conducting layers which support the oriented ferroelectric liquid-crystalline polymer layer between them, where at least one of the two electrically conducting layers is transparent. The liquid crystal optical element can be easily made into one having a large area and can be used as a flexible display screen. Further, it has excellent electric field response property and high contrast. Furthermore, the production of the liquid crystal optical element and the control of its thickness can be easily conducted.
摘要:
An ignition system for internal combustion engines comprises means for generating an ignition signal in synchronism with the revolution of an internal combustion engine and an ignition circuit device for interrupting a primary current of an ignition coil in accordance with the ignition signal. The ignition circuit device includes an ignition monitor signal producing circuit for producing an ignition monitor signal which circuit operates to set the ignition monitor signal at the time of starting the energization of the ignition coil and thereafter to reset the ignition monitor signal at a subsequent predetermined timing, whereby the ignition circuit device operates, in accordance with the pulse width and the set and reset conditions of the ignition monitor signal, to decide whether the operation of the ignition circuit device is normal or abnormal, to control to generate a predetermined amount of ignition energy, and to prevent erroneous generation the ignition monitor signal due to a noise or the like.