摘要:
Disclosed are a reciprocating compressor and a refrigerating apparatus having the same, a ball bearing (300) can be easily stably installed between thrust surfaces (213, 227) of a cylinder block (210) and a crank shaft (220) so as to enhance efficiency of the compressor. Also, a ball bearing (300) can be installed by being inserted into thrust surfaces (213, 227) so to shorten a moment arm that much, thereby decreasing a frictional loss at a journal bearing surface (215), resulting in an energy efficiency of the reciprocating compressor and the refrigerating apparatus having the same. In addition, as an oil hole (226c) of the crank shaft (220) is veiled by the journal bearing surface (215) of the cylinder block (210), even if a ball bearing (300) is employed, oil leaked between the thrust surfaces (213, 227) can be reduced, thereby further enhancing the efficiency of the compressor and the refrigerating apparatus having the same.
摘要:
Disclosed are an anti-abrasion device and a reciprocating compressor having the same, whereby a sleeve is fabricated with an outer diameter smaller than an inner diameter of a connecting rod to be non-press-fitted, thereby facilitating an assembly of the sleeve, and also the deformation of an inner diameter of the sleeve is prevented during the assembly of the sleeve, thereby preventing beforehand an increase in an input load of a motor unit due to the deformation of the sleeve and an abrasion of a pin of a crankshaft.
摘要:
A capacity variable type twin rotary compressor may include a casing, a motor, a first cylinder having a first compression space, a second cylinder fixed to one side of the first cylinder and having a second compression space, first and second intakes respectively formed in the first and second cylinders and each connected to a gas intake pipe, first and second vane slits respectively formed in the first and second intakes first and second rolling pistons eccentrically coupled to the motor and respectively housed in the first and second compression spaces, first and second vanes slidingly received in the first and second vane slits, respectively, an expansion groove formed at the second vane slit separate from the inner space of the casing, and refrigerant switching valves that allow refrigerant of intake and discharge pressures to be supplied into the second compression space and the expansion groove, such that the second vane contacts the second rolling piston to perform a power driving or separates therefrom to perform a saving driving.
摘要:
Disclosed is an auto-cutter which is installed in a roll paper printer which prints a receipt, a barcode, a label or the like on paper and outputs it. The auto-cutter functions to automatically cut a section of roll paper off. A casing is provided in a main body of the roll paper printer. A step motor is installed in the casing and connected to a movable cutting blade through spur gears. Therefore, a paper cutter structure and a full and partial cut structure can be simplified. In particular, the present invention can prevent a cutter jam, thus enhancing reliability of the operation of cutting.
摘要:
A modular steel bridge is configured by combining at least two steel girder segments, and it includes a bearing block installed to be connected to an upper flange of a connection end of each steel girder segment and a web, and a hinge assembly installed to be attachable to the lower flange of each connection end and hinge-connecting the connection ends.
摘要:
A passenger airbag module equipped with an airbag cushion and a tether holder used in a vehicle. The tether holder holds a tether prior to inflating the airbag cushion and inhibits twisting of the tether during deployment of the tether when the airbag cushion is inflated. When the tether is deployed without being twisted or folded, the deployment length of the tether is not reduced. Thus, the airbag is more consistently deployed and inflated.
摘要:
A method of programming a flash memory device includes charging selection lines with a first voltage while applying program data to bit lines to during a bit line setup interval, then activating a block word line to electrically connect the selection lines to corresponding word lines, and then applying a second voltage, greater than the first voltage, to a selected one of the selection lines. Related devices are also disclosed,
摘要:
A detachable connecting rod includes a first member (410)a large end portion (411) having a trough hole (H1), and a first connection rod portion (412) extending from the large end portion (411), the first connection rod portion (412) having a pair of spaced apart arms defining a coupling groove (413) extending in the same direction as an axial direction of the through hole (H1); a second member (420) including a small end portion having a through hole (H2), and second connection rod portion (422) extending from the small end portion, the second connection rod (422) portion being inserted into the coupling groove (413) and a coupling unit for coupling the first connection rod portion (412) to the second connection rod portion inserted (412) into the coupling groove (413) of the first member (410). The detachable connecting rod is useable in a compressor.
摘要:
A voltage generator is provided. The voltage generator includes a voltage pump and a voltage controller. The voltage pump generates a target voltage using a clock signal. The voltage controller compares a temporary voltage input from the voltage pump with a reference voltage to generate a control signal controlling the voltage pump. The voltage controller includes a string of a plurality of resistors connected in series to change a level of the temporary voltage to a voltage level of a corresponding comparison voltage. When the plurality of resistors are in a string, a resistance of a resistor closest to one end of the string is greater than resistances of other resistors of the string. The voltage controller may further include a jumping unit controlling connection or disconnection of two arbitrary nodes among first to n-th nodes (where n is a natural number) defined as connection points of the adjacent resistors of the string. Accordingly, the voltage generator can generate a voltage of with a more accurate level.
摘要:
A method of programming a flash memory device includes charging selection lines with a first voltage while applying program data to bit lines to during a bit line setup interval, then activating a block word line to electrically connect the selection lines to corresponding word lines, and then applying a second voltage, greater than the first voltage, to a selected one of the selection lines. Related devices are also disclosed.