Kabushiki Kaisha Toshiba

Tokyo Shibaura Denki Kabushiki Kaisha

Shigemi Nagatomo

Hirotsugu Sakata

Makoto Hayano

Mitsuo Hatori

Hitoshi Hattori

Isao Suzuki

Naoya Morozumi

Tsutomu Sakuma

Takashi Matsuzaka

Akira Kudo

Minoru Komori

Kouichi Yoneyama

Takashi Komakine

Junji Sone

Toshinori Iwasaki

Noboru Kagawa

Hiroaki Murasaki

A scroll member comprising a metallic end plate having a spiroidal groove on one side thereof, and a through-hole communicating with the groove, and a resin wrap joined to the groove of the end plate so as to protrude from the surface of the end plate. The wrap being formed by injection molding, and the through-hole and the groove being filled with part of the wrap.

Scroll member for use in a positive displacement device, and a method

A scroll compressor has a channel formed in a compressor member such as main shaft, frame, orbital scroll member, through which lubricating oil can pass easily from the higher pressure side to the lower pressure side under flow control between sliding surfaces of the compressor members without reduction in the sealing between the higher pressure side and the lower pressure side, whereby injecting sufficient lubricating oil between the scroll members improves both the sealing and the lubricating between the scroll members.

Scroll compressor with control of lubricant flow

A Stirling engine which has an expansion cylinder and a compression cylinder with an expansion piston and a compression piston, respectively, that have a fixed phase difference between them, where the expansion cylinder and the compression cylinder are connected through a heater, a regenerator, and a cooler, a fixed amount of working fluid is sealed in the expansion cylinder and a compression cylinder, and the engine is driven by heating or cooling the working fluid with the heater or the cooler, and in the above Stirling engine, the heater for heating the working fluid includes a combustion chamber attached to the expansion cylinder, a burner for jetting a combustible substance into the combustion chamber, a plurality of heat exchanger pipes for forming a plurality of passages for the working fluid to connect through between the expansion cylinder and the regenerator by turning back on themselves, in order to heat the working fluid with the high temperature gas from the burner, and a cylinder head for installing the plurality of heat exchanger pipes, in a concentric configuration with approximately equal distance apart and with an inclination of predetermined angle, on the expansion cylinder, in order to make equal the lengths of the passages for the working fluid between the expansion cylinder and the regenerator.

Stirling engine

In a scroll compressor, the side of the orbiting end plate away from the compression chambers is slidably supported by an annular protusion formed in the frame. A lower pressure chamber is formed on the radially outer side of this annular protrusion, and an Oldham's ring is fitted inside the lower pressure chamber.

Scroll compressor with lower and higher pressure chambers acting on the

In a scroll compressor for compressing gas a scroll unit having stationary and orbiting scroll members with interfitting spiroidal wraps is hermetically enclosed in a housing. During operation, a compression chamber defined between the scroll chambers is given a high pressure, and the space in the housing below the orbiting scroll member is given a low pressure atmosphere. A motor housed in the low pressure atmosphere rotates a drive shaft. This drive shaft causes the orbiting scroll member to orbit. A passage is provided in the orbiting scroll member to connect the low pressure atmosphere and the compression chamber. A thrust reduction mechanism is supported by the housing in the low pressure atomophere. The thrust reduction mechanism receives the pressure of the compression chamber via the passage.

Scroll compressor with a thrust reduction mechanism

In a scroll compressor, at least one suction port for gas is opened in a stationary end plate which has a spiral wrap. Gas is drawn directly into the compression chambers from the suction port. In addition, the suction port has an opening straddling both the radially extending surface of the stationary end plate at the outermost circumference of the compression chambers and the compression chamber side wall that is perpendicular to the radially extending surface, and the opening area of the suction port is relatively large.

Scroll compressor with suction port in stationary end plate

A scroll compressor includes a casing, an electric motor and a compressor unit housed in the casing and the compressor unit comprises a movable member having a first scroll blade driven eccentrically by the electric motor and a structural member having a second scroll blade encasing the movable member so that the first scroll blade revolves around a central axis of the compressor with a predetermined radius of revolution, while the first blade is maintained in sliding contact with the second blade. The two scroll blades are formed by drawing a series of semicircles alternately around a first point and a second point spaced apart from the first point. An internal end portion of the first and second scroll blades includes a planar surface disposed perpendicular to a line interconnecting the first and second point.

Scroll compressor with planar surfaces on the internal end portions of

A turbine for use in refrigeration cycle comprising a closed casing, a turbine runner housed in said casing, an injection nozzle through which refrigerating medium having at least one of pressure-based and knetic energies is blown to rotate the turbine runner, a liquid refrigerating medium receiving section arranged at the lower end of said casing to collect liquid refrigerating medium, and a refrigerating medium discharging outlet through which refrigerating medium is fed to an evaporator arranged in a refrigeration cycle.

Growing community of inventors

Tokyo, Japan

Shigemi Nagatomo