摘要:
A reciprocating compressor includes a front-side delivery chamber 18a formed at a front-side cylinder head 6, a rear-side delivery chamber 18b formed at a rear-side cylinder head 8, a plurality of delivery passages 12a and 12b formed at cylinder blocks 2 and 4 and an outlet port 16 that communicates between one of the delivery passages and an external circuit. The other delivery passage 12b that is not in communication with the outlet port 16 is made to communicate with the front-side delivery chamber 18a and the rear-side delivery chamber 18b and is also made to communicate with the delivery passage 12a in communication with the outlet port 16 via a guide passage 17. The delivery passage 12a in communication with the outlet port 16 is made to communicate with either the front-side delivery chamber or the rear-side delivery chamber via a constricted portion 40 having a passage section smaller than the passage sections at positions at which the other delivery passage 12b communicates with the delivery chambers 18a and 18b, and the dimensions of the constricted portion are set so that its area is equal to or smaller than the area of a circular section with a diameter of 1.5 mm. The reciprocating compressor adopting the structure described above makes it possible to reduce the extent of discharge pulsation and ultimately reduce vibration and noise.
摘要:
A reciprocating compressor includes a cylinder block having formed therein a plurality of cylinders, pistons that make reciprocal movement inside the cylinders, a first cylinder head fixed to one end of the cylinder block via a valve plate, a second cylinder head fixed to another end of the cylinder block via a valve plate, a first delivery chamber formed at the first cylinder head, into which a working fluid let out from a first compression space formed toward one end inside each of the cylinders is guided, a second delivery chamber formed at the second cylinder head, into which a working fluid let out from a second compression space formed toward another end inside each of the cylinders is guided, a plurality of delivery passages formed at the cylinder block and an outlet port located at the cylinder block or the cylinder head.
摘要:
An electronic device includes an electronic part including at least one first electrode, a substrate including at least one second electrode, and at least one bump formed on the at least one first electrode and formed from an elastic conductive resin including a resin having rubbery elasticity, and an acicular conductive filler including a surface layer coated with one of gold, silver, nickel, and copper. The at least one first electrode and the at least one second electrode are electrically connected to each other by mechanically contacting the at least one bump with the at least one second electrode.
摘要:
A light-emitting element driving circuit comprises a current supplier serially connected to a light-emitting element and operative to supply a current to the light-emitting element; and a switching unit operative to control switching between the states of the current supplied to the light-emitting element from the current supplier. The switching unit includes a current path consisting of a diode and a semiconductor switching element. The diode is connected in parallel with the light-emitting element and in a forward direction directed from an anode to a cathode of the light-emitting element. The semiconductor switching element is connected serially to the diode and operative to switch between the states of conductive and non-conductive based on a control signal. A voltage drop across the current path when the semiconductor switching element is made conductive is determined lower than a forward voltage of the light-emitting element when it emits light.
摘要:
A leaf coater, in which a constant quantity of a coating solution is supplied intermittently from a coating solution supply source through a predetermined coating solution quantity intermittent supply and a coating solution applier to a blank substrate, for coating blank substrates one by one with the coating solution, characterized in that a coating solution filtration is provided in the coating solution flow pipeline from the coating solution supply source to the coating solution applier, and the Young's modulus of the filter medium in the coating solution filtration is not less than 200 MPa, while the pore size of the filter medium is in the range of 0.05 &mgr;m to 100 &mgr;m; and a method for producing coated substrates using the leaf coater.
摘要:
A retaining structure of a flexible wiring member includes a flexible wiring member; and a retaining member. The flexible wiring member includes a front side wiring electrode formed on a front side the flexible wiring member and a rear side wiring electrode formed on a rear side thereof, and the flexible wiring member is bonded to the retaining member via the rear side wiring electrode.A liquid discharge head includes nozzles to discharge a liquid; an individual liquid chamber to hold the liquid; a pressure generator to press the liquid inside the individual liquid chamber; an actuator substrate, including an electrode, in which a wiring and the pressure generator are disposed. The electrode of the actuator and that of the flexible wiring member are connected; and the flexible wiring member is retained to the actuator or a member joined to the actuator via the retaining structure of the wiring member.
摘要:
There is provided a light receiving circuit including, a light receiving element outputting electrical current corresponding to input light, and a current-voltage converter having current-voltage conversion characteristic, the current-voltage conversion characteristic becoming smaller at a low frequency side and larger at a high frequency side, the current-voltage converter converting the current to the voltage and outputting the voltage.
摘要:
A pattern form object and its manufacturing method are disclosed. The pattern form object includes a pattern constituted by an aggregate of grains, a supporting member for supporting the pattern, and a mixed layer formed at a boundary of the pattern and the supporting member. The mixed layer is constituted by a mixture of the grains and the supporting member. Dimensions of the grains in a region other than the mixed layer are greater than dimensions of the grains in the mixed layer.
摘要:
Provided herein is a head unit arrangement method for arranging a plurality of head units in a liquid droplet ejection device that plots an image in a matrix form with functional liquid droplets in a number n of colors by performing the number n of primary scans and a number (n−1) of secondary scans. The head unit arrangement method includes evaluating liquid droplet ejection performance of each of the head units based on an inspection result of a volume of liquid droplet ejection from each of the functional liquid droplet ejection heads to arrange two of the head units that exhibit the lowest liquid droplet ejection performance at both ends in the Y-axis direction.
摘要:
An optical receiver circuit according to an embodiment includes a light receiving units configured to output a current according to input light, and an inverting amplifier having an input terminal and an output terminal, the input terminal connected to the light receiving units, and a feedback circuit connected between the input terminal and the output terminal, and provided with a plurality of pairs of a pole and a zero on a negative real axis on a Laplace plane so that transimpedance characteristics show high gains of a plurality of steps on high-frequency side.