초록 ▼

A detector of liquid consumption condition includes a vibrating part that can vibrate relatively to a containing space that can be filled and refilled with a liquid. At least a portion of the vibrating part is exposed to the containing space. A piezoelectric device can cause the vibrating part to vi

A detector of liquid consumption condition includes a vibrating part that can vibrate relatively to a containing space that can be filled and refilled with a liquid. At least a portion of the vibrating part is exposed to the containing space. A piezoelectric device can cause the vibrating part to vibrate based on a driving signal and can generate a counter electromotive force signal by a vibration of the vibrating part. A liquid consumption condition detecting part can detect a liquid consumption condition, based on the counter electromotive force signal from the piezoelectric device. The containing space can contain only a predetermined volume of the liquid. The vibrating part is provided in a vicinity of a liquid surface in the containing space when the containing space contains the predetermined volume of the liquid.

대표청구항 ▼

A detector of liquid consumption condition includes a vibrating part that can vibrate relatively to a containing space that can be filled and refilled with a liquid. At least a portion of the vibrating part is exposed to the containing space. A piezoelectric device can cause the vibrating part to vi

A detector of liquid consumption condition includes a vibrating part that can vibrate relatively to a containing space that can be filled and refilled with a liquid. At least a portion of the vibrating part is exposed to the containing space. A piezoelectric device can cause the vibrating part to vibrate based on a driving signal and can generate a counter electromotive force signal by a vibration of the vibrating part. A liquid consumption condition detecting part can detect a liquid consumption condition, based on the counter electromotive force signal from the piezoelectric device. The containing space can contain only a predetermined volume of the liquid. The vibrating part is provided in a vicinity of a liquid surface in the containing space when the containing space contains the predetermined volume of the liquid. immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced. compressor for sucking and compressing refrigerant; an exterior heat exchanger for performing heat-exchange between the refrigerant and air outside the compartment; a first interior heat exchanger for performing heat-exchange between the refrigerant and air to be blown into the compartment; a second interior heat exchanger for performing heat-exchange between the refrigerant and air to be blown into the compartment, the second interior heat exchanger being disposed at a downstream air side of the first interior heat exchanger; an ejector including a nozzle for converting pressure energy of high-pressure side refrigerant to a speed energy so that the high-pressure side refrigerant is decompressed and expanded, and a pressure-increasing portion in which the speed energy is converted to the pressure energy so that the pressure of refrigerant is increased while refrigerant discharged from the nozzle and gas refrigerant sucked from a low pressure side are mixed; a gas-liquid separator for separating refrigerant into gas refrigerant and liquid refrigerant, the gas-liquid separator being coupled to the compressor such that gas refrigerant is sucked into the compressor; a switching unit for switching one of at least a cooling operation for cooling the compartment and a dehumidifying-heating operation for dehumidifying the compartment while restricting a temperature decrease in the compartment; and a decompression unit for decompressing refrigerant at least in the dehumidifying-heating operation, the decompression unit being disposed in a refrigerant passage connecting the first interior heat exchanger and the second interior heat exchanger; wherein: in the cooling operation, refrigerant in the first and second interior heat exchangers is evaporated, and refrigerant in the exterior heat exchanger is radiated;in the dehumidifying-heating operation, refrigerant is evaporated in the first interior heat exchanger while refrigerant in the second interior heat exchanger is radiated;the first interior heat exchanger and the second interior heat exchanger are arranged in parallel relative to a refrigerant flow, at least in the cooling operation; andat least in the dehumidifying-heating operation, a part of high-pressure refrigerant discharged from the compressor, before being decompressed, is introduced into the second interior heat exchanger, and flows into the first interior heat exchanger after being decompressed in the decompression unit, while the other part of the high-pressure refrigerant is introduced into the nozzle of the ejector.3. An air conditioner for a compartment, comprising: a compressor for sucking and compressing refrigerant; an exterior heat exchanger for performing heat-exchange between the refrigerant and air outside the compartment; a first interior heat exchanger for performing heat-exchange between the refrigerant and air to be blown into the compartment; a second interior heat exchanger for performing heat-exchange between the refrigerant and air to be blown into the compartment, the second interior heat exchanger being disposed at a downstream air side of the first interior heat exchanger; an ejector including a nozzle for converting pressure energy of high-pressure side refrigerant to a speed energy so that the high-pressure side refrigerant is decompressed and expanded, and a pressure-increasing portion in which the speed energy is converted to the pressure energy so that the pressure of refrigerant is increased while refrigerant discharged from the nozzle and gas refrigerant sucked from a low pressure side are mixed; a gas-liquid separator for separating refrigerant into gas refrigerant and liquid refrigerant, the gas-liquid separator being coupled to the compressor such that gas refrigerant is sucked into the compressor; and a switching unit for switching one of at least a cooling operation for cooling the compartment and a dehumidifying-heating operation for dehumidifyin g the compartment while restricting a temperature decrease in the compartment; wherein: in the cooling operation, refrigerant in the first and second interior heat exchangers is evaporated, and refrigerant in the exterior heat exchanger is radiated;in the dehumidifying-heating operation, refrigerant is evaporated in the first interior heat exchanger while refrigerant in the second interior heat exchanger is radiated;the switching unit is disposed to switch one of the cooling operation, the dehumidifying-heating operation, and a heating operation for heating the compartment; andin the heating operation, refrigerant is evaporated in the exterior heat exchanger while refrigerant is radiated in both the first and second interior heat exchangers.4. The air conditioner according to claim 3, wherein: in the heating operation, refrigerant discharged from the compressor flows through the first and second interior heat exchangers, the nozzle of the ejector and the gas-liquid separator, while liquid refrigerant in the gas-liquid separator flows through the exterior heat exchanger, the ejector and the gas-liquid separator in this order. 5. The air conditioner according to claim 4, wherein the first interior heat exchanger and the second interior heat exchanger are arranged in parallel, relative to a refrigerant flow in the heating operation.6. The air conditioner according to claim 4, wherein the first interior heat exchanger and the second interior heat exchanger are arranged in series, relative to a refrigerant flow in the heating operation.7. The air conditioner according to claim 1, wherein: the switching unit is disposed to switch one of a first mode where refrigerant discharged from the compressor flows toward the exterior heat exchanger, and a second mode where refrigerant discharged from the compressor flows toward the first and second interior heat exchangers. 8. The air conditioner according to claim 1, wherein: one of carbon dioxide, fluorocarbon and hydrocarbon is used as the refrigerant. 9. The air conditioner according to claim 2, wherein: the switching unit is disposed to switch one of a first mode where refrigerant discharged from the compressor flows toward the exterior heat exchanger, and a second mode where refrigerant discharged from the compressor flows toward the first and second interior heat exchangers. 10. The air conditioner according to claim 2, wherein: one of carbon dioxide, fluorocarbon and hydrocarbon is used as the refrigerant. 11. The air conditioner according to claim 3, wherein: the switching unit is disposed to switch one of a first mode where refrigerant discharged from the compressor flows toward the exterior heat exchanger, and a second mode where refrigerant discharged from the compressor flows toward the first and second interior heat exchangers. 12. The air conditioner according to claim 3, wherein: one of carbon dioxide, fluorocarbon and hydrocarbon is used as the refrigerant.