Abstract:
Disclosed herein are a new phenylacetate derivative represented by Chemical Formula 1 or pharmaceutically acceptable salt thereof, a preparation method thereof, and a composition for prevention or treatment of diseases induced by the activation of T-type calcium ion channels containing the same. The composition containing the phenylacetate derivative according to the present invention effectively inhibits the activation of T-type calcium ion channels and may be useful in the prevention or treatment of diseases such as hypertension, cancer, epilepsy, and neurogenic pains induced by the activation of T-type calcium ion channels. wherein, X, R1, and R3 are as defined herein.
Abstract:
Disclosed herein are a new phenylacetate derivative represented by Chemical Formula 1 or pharmaceutically acceptable salt thereof, a preparation method thereof, and a composition for prevention or treatment of diseases induced by the activation of T-type calcium ion channels containing the same. The composition containing the phenylacetate derivative according to the present invention effectively inhibits the activation of T-type calcium ion channels and may be useful in the prevention or treatment of diseases such as hypertension, cancer, epilepsy, and neurogenic pains induced by the activation of T-type calcium ion channels. wherein, X, R1, and R3 are as defined herein.
Abstract:
A coolant supply apparatus for a linear compressor which includes a stator mounted at one side of a flange for generating a magnetic field therearound and a horizontal operating unit which reciprocates horizontally. The horizontal operating unit includes a magnet disposed inside the stator and a piston, which is integral with the magnet and reciprocates horizontally within a cylinder. The coolant supply apparatus further includes a coolant oil pocket for guiding a predetermined amount of coolant oil to an outer circumferential surface of the cylinder in cooperation with a suction force of the piston and for cooling a heat generated in the cylinder. A plurality of coolant oil sucking/discharging holes are formed at the cylinder in order for the coolant oil filled in the coolant oil pocket to be introduced between the cylinder and the piston therethrough. A coolant oil discharging hole is formed in order for a predetermined amount of the coolant oil filled in the coolant oil pocket to be discharged therethrough. A valve plate is provided for introducing the coolant oil discharged through the coolant oil discharging hole and for preventing the leakage of a refrigerant gas.
Abstract:
An improved oil supply apparatus for a friction portion of a linear compressor which is capable of enhancing the lubricating performance of the piston by substantially supplying oil to the fricton portion between a cylinder (122') and a piston (129), thus enabling a desired reciprocating movement of the piston (129), which includes a cylinder (122') having a plurality of oil introducing holes (122a) for communicating the inside and the outside of the cylinder (122'); an oil mass (131) disposed between the cylinder and a core liner spaced apart from the cylinder (122') and slidable whithin an oil pocket (132) communicating with the cylinder (122') by an oil suction hole (143c); an elastic member (133, 134) for elastically supporting the oil mass (131); and a valve assembly (139') for a refrigerant gas flowing path for guiding the flowing of the refrigerant gas, a suction gasket (141) integral with an oil flowing path for guiding the flowing of the oil supplied to and discharged from the friction portion between the cylinder (122') and the piston (129), a suction valve (142), a valve sheet (143), a discharging valve (144), a discharging gasket (145), and a head cover (146).
Abstract:
An axial flow valve system for a linear compressor which is capable of enhancing the operation of the compressor by securely fixing an intake valve comprising an axial flow valve system to prevent an undesired axial movement of the intake valve, promptly carrying out an opening-closing operation and improving the reliability of the valve opening-closing operation.
Abstract:
A noise-reducing apparatus for a linear compressor which can significantly reduce noise by forming a multistage silencer in the suction side of a refrigerant passage of a linear compressor in which an axial flow valve system is adopted and therein a plurality of silencers formed connected to the suction side of the refrigerant passage inside a piston slidably disposed inside the cylinder.