Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Other

Matsushita Refrigeration Company

Fumitoshi Nishiwaki

Hiroshi Hasegawa

Hidetoshi Taguchi

Yuuichi Yakumaru

Tomoichiro Tamura

Noriho Okaza

Masaaki Suzuki

Kou Komori

Masami Funakura

Yuji Yoshida

Hidenobu Shintaku

Mitsuhiro Ikoma

Atsuo Okaichi

Osao Kido

Subaru Matsumoto

Terumaru Harada

Yoshitsugu Nishiyama

Etsuro Suzuki

Hisaaki Gyoten

Takeshi Ogata

Yasushi Nakagiri

Masanobu Wada

Masaya Honma

Masaru Matsui

Yoshiaki Yamamoto

Keizo Matsui

Fuminori Sakima

A disclosed micro gas turbine system includes a micro gas turbine apparatus and an extracting cycle apparatus. The micro gas turbine apparatus includes a first compressor, a burner, and a first turbine. The first turbine expands a combustion gas generated by the burner. The extracting cycle apparatus includes a second compressor and a second turbine. The second compressor receives a flow of extracted air that is generated by extracting a part of a working fluid discharged from the first compressor. The second turbine expands the working fluid discharged from the second compressor. The working fluid discharged from the second turbine cools down the first turbine.

Micro gas turbine system

A turbine nozzle according to the disclosure is a turbine nozzle that is used in a radial turbine and includes a ring-shaped hub, a plurality of nozzle vanes that are arranged at equal angular intervals on the hub, and a flow path that is formed between the nozzle vanes. The flow path includes a throat that has a smallest flow path cross-sectional area with respect to a flow direction of working fluid. On a downstream side of the throat with respect to the flow direction, the flow path cross-sectional area increases. Heights of the nozzle vanes on the downstream side of the throat with respect to the flow direction are greater than heights of the nozzle vanes in the throat and gradually increase from an upstream side toward the downstream side with respect to the flow direction.

Turbine nozzle and radial turbine including the same

A gas turbine system (A) includes a gas turbine unit () and a cooling fluid generator (). The gas turbine unit () includes a first compressor () and a first expansion turbine () coupled to each other by a first shaft (), a combustor (), and a fuel tank (). A fuel held in the fuel tank () circulates through a fuel circulation passage (). A working fluid that has a pressure increased by the first compressor () is extracted from the gas turbine unit (). The cooling fluid generator () includes a cooler () for cooling, with the fuel flowing through the fuel circulation passage (), the working fluid that has been extracted from the gas turbine unit (), and a second expansion turbine () for expanding the working fluid that has flowed out of the cooler ().

Gas turbine system with cooling fluid generator

A centrifugal compressor includes: an impeller having full blades and splitter blades; a shroud wall forming an intake and having a shape conforming to the impeller; and a bleed chamber facing an outer surface of the shroud wall. The bleed chamber communicates with a discharge space having a pressure equal to or lower than a pressure of a working fluid at the intake. The shroud wall is provided with a slit (a bleeding passage) that directs a portion of the working fluid that has flowed into a space between the full blade and a pressurizing surface of the splitter blade to the bleed chamber.

Centrifugal compressor

A refrigeration cycle apparatusincludes a refrigerant circuit in which a refrigerant circulates. The refrigerant circuit is formed by connecting in sequence a compressorfor compressing the refrigerant, a radiatorfor allowing the refrigerant compressed by compressorto radiate heat, a fluid pressure motoras a power recovery means, and an evaporatorfor allowing the refrigerant discharged by the fluid pressure motorto evaporate. The fluid pressure motorperforms a process for drawing the refrigerant and a process for discharging the refrigerant. These processes are performed substantially continuously.

Refrigeration cycle apparatus and fluid machine used for the same

In a heat pump apparatus of the invention, a refrigerant is circulated through a compressor, a radiator, a first throttle apparatus, a heat exchanger, a second throttle apparatusand an evaporatorin this order. The heat exchangercan be utilized as both a radiator and an evaporator by operating the first throttle apparatusand the second throttle apparatus. Therefore, even if the outside air temperature is high, discharge pressure and suction pressure of the compressor do not rise, the heat pump apparatus can be operated in a stable refrigeration cycle, and energy can be saved.

Heat pump apparatus and operating method thereof

A plurality of vertically standing plates are assembled in a lattice form to a divided memberas a floating type wave-suppressing members. The divided memberis allowed to float in an interfacebetween working fluid and refrigeration oil of an oil reservoir. The interfaceis prevented from rippling by turning flow, oil drops torn from the interfaceby the turning flow is reduced, and oil drops of the refrigeration oil are prevented from being supplied from the interfaceto the working fluid.

Hermetic type compressor with wave-suppressing member in the oil reservoir

The present invention realizes a reliable heat pump apparatus and heat pump apparatus having high recovering efficiency. The heat pump apparatus includes an expanderfor expanding working fluid, a permanent magnet type synchronization power generatorwhich is disposed for recovering power by the expanderand which generates three phase AC power, and a first converterwhich converts the AC power to DC power, and which rotates the power generatorat a predetermined target number of revolutions by switching of a switching element group. The generated electricity is consumed by connection of an AC power supplyto a DC power line which is rectified and smoothened by a rectifier circuitand a smoothing capacitor, and by driving of an electric motorwhich rotates a compressorthrough a motor drive apparatus, and the power is efficiently recovered.

Heat pump apparatus

A projection of an upper bearing member is provided with a porous member, and a lower space between a rotational motor and a compression mechanism is defined into a lower compression mechanism-side space and a lower rotational motor-side space. With this structure, stirring effect of working fluid flowing in the lower compression mechanism-side space caused by rotation of the rotor is suppressed, and oil drops mixed in the working fluid are prevented from being finely divided by the stirring effect, the oil drops are allowed to fall due to the gravity in the lower compression mechanism-side space, and oil separating effect from the working fluid is enhanced.

Compressor for refrigerator-freezer having a porous member

A drying apparatus has a heat pump comprising a compressor (), a radiator (), a throttle apparatus () and an evaporator (), and also includes a structure in which drying air heated by heat of the radiator () is introduced to a subject () to be dried is dehumidified by the evaporator (). The drying apparatus also includes a bypass circuit () through which a portion of dying air heated by the radiator () flows to an inlet of the evaporator () without coming into contact with the subject, a super heat detecting device () for detecting super heat of the heat pump apparatus, and a throttle apparatus control device for controlling flow path resistance in the bypass circuit () using a value detected by the super heat detecting device ().

Heat pump type drying apparatus drying apparatus and drying method

A high-efficiency vane rotary expander is provided, which prevents a loss due to incomplete expansion or overexpansion from occurring because the volume of an operating chamber may vary. This is done by forming a plurality of discharge ports () in an inner wall () of a cylinder in the circumferential direction, placing, among these discharge ports, the discharge port (), to which the operating chamber () connects at the initial stage of the discharging process, at a position of {180&#xd7;(1+1/n)} degrees from a small clearance () defined between the cylinder () and the rotor () in the direction where a shaft rotates, and providing a valve mechanism ().

Vane rotary expansion engine

In a refrigerating cycle device using carbon dioxide as a refrigerant, there exists a problem that the provision of a receiver at a low-pressure side increases cost and volume due to a pressure resistance design necessary for ensuring safety. By adjusting a refrigerant holding quantity of a first heat exchanger in such a manner that a refrigerant pressure of the first heat exchangeris changed by operating a first decompressorand a second decompressor, an imbalance of a refrigerant quantity between time for space cooling and time for heating or dehumidifying can be alleviated and hence, it is possible to perform an operation of the refrigerating cycle device with high efficiency with a miniaturized receiver or without providing the receiver.

Refrigerating cycle device

A drying apparatus comprising a heat pump apparatus in which a refrigerant circulates through a compressor, a radiator, a throttle apparatus and an evaporator in this order, in which air heated by the radiator is introduced into a dry chamber, the air coming out from the dry chamber is cooled by a cooling apparatus, the air cooled by the cooling apparatus is dehumidified by the evaporator, and the air dehumidified by the evaporator is again heated by the radiator, wherein the drying apparatus further comprises compressor input detecting means for detecting input of the compressor, and cooling quantity control means for controlling a cooling quantity of the cooling apparatus using a value detected by the compressor input detecting means.

Drying device and method of operation therefor

An air conditioner for a vehicle includes a refrigerant cycle having an evaporator which is disposed in a blowing duct and cools air by refrigerant evaporation in the blowing duct; a compressor setting the evaporated refrigerant at a high temperature and high pressure; a refrigerant-to-water heat exchanger heating cooling water by heat transfer from the refrigerant discharged from the compressor; and an expansion device decompressing the refrigerant discharged from the refrigerant-to-water heat exchanger. The air conditioner also includes a cooling water cycle having a heater core which is disposed on the downstream side of the evaporator; a radiator cooling the cooling water; a pump circulating the cooling water cooled by the radiator; a power engine cooled by the cooling water fed by the pump; and the refrigerant-to-water heat exchanger. The refrigerant cycle performs cooling for dehumidification by performing the operation of heating.

Growing community of inventors

Hyogo, Japan

Fumitoshi Nishiwaki