Mitsubishi Heavy Industries Limited

Nippon Steel Corporation

Nissan Motor Company Limited

Masahiro Masuda

Tetsuya Miyazaki

Isao Nakamura

Kunitoshi Watanabe

Yoichi Sashihara

Kazuhiro Sekimoto

Kazuo Uematsu

Kuniaki Aoyama

Takeshi Okubo

Toshiyuki Osada

Hiromi Nakatani

Shuhei Sasaki

Masashi Tagawa

Akira Furutani

Kazuta Kobayashi

Jin Kato

Yoshiharu Chiba

Seiji Maeda

A solar receiver is disposed on a top portion of a tower provided upright on the ground for heating a compressible working fluid by means of heat converted from sunlight collected by heliostats disposed on the ground, to raise the temperature of the compressible working fluid. The solar receiver has modules disposed back-to-back, and each of which includes a casing having a bottom plate to be fixed to the top-portion upper surface of the tower. A heat-transfer-tube unit is accommodated in the casing and includes heat transfer tubes. A sunlight inlet port having a circular shape in front view or an elliptical shape in front view is provided at the center portion of a plate-like member whose lower end is connected to an outer circumferential end of the bottom plate to constitute the casing and that extends obliquely upward from the outer circumferential end.

Solar receiving

A cooling structure around the output shaft of an L-shaped vertical gas turbine, for cooling the output shaft effectively by a natural ventilation. A gas generator 5 is arranged horizontally whereas an output turbine 1 is arranged vertically, and a pump or the like is driven by an output shaft 3. A cylinder 20 is fitted in a space 12 between the output shaft 3 and a cylindrical casing 13 and is fixed at a cylindrical flange 20a. Cooling air 30 is caused to flow upward from between the cylinder 20 and the output shaft 3 by the ejector effect of an exhaust gas from below a baseplate 8 and by the vacuum in the casing and then to flow downward from the upper end of the cylinder 20 between the cylinder 20 and the cylindrical casing 13, so that it flows out from the lower portion into the package. The output shaft of the L-shaped vertical type gas turbine having a compact narrow space is effectively cooled therearound by the natural ventilation without providing any fan or the like.

Cooling structure around L shaped vertical type gas turbine output shaft

A method of calculating heat input to an alloying furnace which includes heat input means for use in the production of hot galvanized band steel comprising conveying a band steel of a selected steel variety through the alloying furnace and forming a plated deposition on the band steel in the alloying furnace comprising an alloyed layer of iron and zinc, establishing a formula defining a correlation between heat input and at least the steel variety, the plated deposition and the conveying speed of the band steel, inputting information which relates at least to the steel variety, the plated deposition, and the conveying speed, determining the heat input on the basis of the information inputted, and using the determined heat input to control the heat input means of the alloying furnace thereby controlling the formation of the iron and zinc alloyed layer plated deposition.

Method of controlling heat input to an alloying furnace for

A plate temperature and an emissivity are determined at the outlet of an insulated heated zone, and compensations are established which reduce deviations between the respective measured values and the respective target values. A heat input is compensated for in accordance with the greater one of the compensations relating to the plate temperature and the emissivity, respectively. For a U-pattern material, .DELTA.Q is previously added to the heat input for the leading and the trailing end portion of the material. The band steel is irradiated by laser radiation at the outlet of the heating zone in order to detect the degree of alloying on the basis of the intensity of reflected radiation. When an unalloyed surface is detected, a target value of the heat input is modified. ITV camera is used to determine the optical reflectivity of the surface of the band steel at the outlet of a cooling zone in order to detect the degree of alloying. After the process has been stabilized, the heat input is gradually decremented, and when any slight insufficiency in the degree of alloying is detected, a fixed compensation is added to the heat input under that condition, subsequently ceasing to update the heat input.

In a weaving loom having a frame and a take-up roller spanned between first and second spaced sections of the frame to wind thereon a fabric, a resilient rod is spanned between the first and second spaced sections to cross the fabric at a position upstream of the take-up roller while being in slidable contact with the fabric, and camber producing means is arranged to flex the resilient rod to produce a camber which protrudes towards the fabric pressing same and is changeable in shape in response to the degree of a biasing force applied to the resilient rod. Thus, the desired form of the camber appropriate for neat winding of the fabric on the take-up roller is easily provided by an operator.

Weaving loom with improved guide means for fabric

Growing community of inventors

Tokyo, Japan

Masahiro Masuda