Hitachi, Ltd.

Hitachi Construction Machinery Co., Ltd.

Takashi Mizumori

Junichi Kobayashi

Norihide Saho

Hisashi Isogami

Hiroaki Yoda

Akira Mochizuki

Takami Kusaki

Yoshihiko Takishita

Koichi Tsuzuki

Toshio Masuda

Kazuo Kobayashi

Susumu Harada

Takeo Takagi

Shiro Nakadaira

Yoichi Imamura

An on-site system building support tool for assisting a user in building an on-site system by displaying a layout creation screen having an icon area for displaying icons, each of which represents any of various kinds of machines that can be used, and a canvas area in which a virtual system is built. The icons are displayed in the canvas area and connected to each other through an association line. A model setting screen is used to display the icons, and on the basis of setting conditions displayed on the model setting screen, a load on the virtual system built on the canvas area is calculated and displayed which applies to the environment. This enables checking of an environmental load on the basis of various kinds of conditions of the site.

On-site system building support tool

An on-site system construction support toolhas a display device that displays a configuration example of an on-site system of a plurality of machines-. The display device opens a process windowhaving a plurality of process buttons-, which identify processes-required for the on-site system, when one of the process buttons is operated, causing the display device to open a setup windowfor specifying the machine to be used in the associated process. The burden that is imposed on the environment by the on-site system is calculated in accordance with information concerning the fuel consumption of the specified machine and the amount of work and displayed. This makes it possible to flexibly support the construction of the on-site system and calculate a value of the expected environmental burden.

On-site system construction support tool and on-site system construction support device

A magnetic separation purifying apparatus includes a cylindrical-shaped sludge recovery rotating body rotating to place sludge and a magnetic substance on a surface thereof to convey the same; a magnetic rotating body, which has an axis in the sludge recovery rotating body and includes a rotating body and a plurality of magnets mounted on its circumference, at least a side of which is arranged close to an inner peripheral surface of the sludge recovery rotating body, by which a magnetic substance is magnetically attracted to a surface of the sludge recovery rotating body whereby sludge is transported onto the surface of the sludge recovery rotating body; and a scraping device that scrapes sludge and a magnetic substance being transported on the surface of the sludge recovery rotating body.

Magnetic separation purifying apparatus and magnetic separation purifying method

A freshwater supply system that stores fresh water transported by transport ships in storage devices and takes out the fresh water from the freshwater storage devices at need to use the same. The system comprises management device that puts management information together and sends and receives various information of countries for demand of the fresh water, analysis information of the fresh water, and various information of transportation device for transportation of the fresh water to the countries. Magnitudes of movements, prices, origins of movement, and destinations of movement of the fresh water are decided from the information from the management device.

Freshwater supply system

Purification apparatus

A purification system is provided for purifying the water of eutrophic lakes and marshes by partitioning the target lake/marsh to form a specified water treating area therein. For this purpose, a partitioning structure is provided for enclosing and partitioning the whole or part of an area around the mouth of each river flowing into the target eutrophic lake/marsh in the direction of depth to form a water treating water area; and a purifier for taking in water from the water treating area operates to separate and remove pollutants from the water, and then discharges treated water outside the water treating area.

Purifying method and purification system for lakes and marshes

An internal combustion engine has an intake air flowmeter which includes a first air flow rate computing means for computing the flow rate of intake air from an output of a hot-wire type air flowmeter in accordance with a first flow rate conversion function, a second air flow rate computing means for computing the intake air flow rate from data concerning a given opening degree of the throttle valve and measured engine speed in accordance with a second flow rate conversion function, and a calibration device for calibrating the first conversion function in accordance with the air flow rate computed by the second air flow rate computing means. When the extent of secular change due to contamination of the hot wire of the air flowmeter has exceeded a predetermined limit, the calibration device is put into effect to calibrate the first flow rate conversion function, so that the intake air flow rate can be measured with a high degree of accuracy without being influenced substantially by the secular change of the hot-wire type air flowmeter.

Internal combustion engine

Growing community of inventors

Kasama, Japan

Takashi Mizumori