Toyota Jidosha Kabushiki Kaisha

Akio Satou

Kazuhisa Mikame

Masahiko Asano

Yasuo Kinoshita

Hirokazu Ito

Natsuki Sugiyama

Masao Nakayama

Hiroyuki Sakai

Kenji Kidera

Mitsutaka Yoshida

Toshiyoshi Ichikawa

Hironari Mikata

Masaru Setodoi

Wataru Iida

In a fuel injection valve having a nozzle hole plate wherein a nozzle hole is formed, the nozzle hole is formed with a flow path cross-section having an oval shape that has long axes and short axes, and the nozzle hole is formed having a tapered shape in which a flow path sectional area becomes larger from an entry-side open end portion toward an exit-side open end portion. The nozzle hole is formed such that a second angle that is an intersecting angle of opposing nozzle hole inner wall surface portions in an oblique section along the short axes of the entry-side open end portion and the exit-side open end portion, is greater than a first angle that is an intersecting angle of opposing nozzle hole inner wall surface portions in a longitudinal section along the long axes of the entry-side open end portion and the exit-side open end portion.

Fuel injection valve

A laser beam machine for processing an article to be processed with a laser beam from a processing scannercomprised of an optical system employing a laser oscillator. Article position controllersandare controlled in a coordinated manner in accordance with the direction of the laser beam from said processing scannersuch that the position of a surface to be processed of the article is controlled to be nearly perpendicular to the direction of the laser beam from the processing scanner. While an article to be processed mounted on one article position controlleris being processed and unloaded, another article to be processed can be loaded onto the other article position controllerThus, the wait time for the laser beam machine can be reduced and production efficiency can be improved.

Laser beam machine

A method of laser beam machining which has a simple construction and which is capable of suitably processing a part to be processed by means of laser beams is provided. A plurality of laser diode arraysare stacked and disposed in such a manner as to allow radiation of laser beams in the direction of a width W of a partto be processed. Each of the laser diode arraysis controlled such that outputsR,L of laser beams with which the partto be processed is irradiated in its width (W)-wise marginal portionsR,L become higher than an outputC of laser beams with which the partto be processed is irradiated in its width (W)-wise central portionC. While the partto be processed is irradiated with the laser beams with the distribution of energy thus changed, the laser beams are displaced relatively in the longitudinal direction of the partto be processed.

Laser beam machining method

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Toyota, Japan

Akio Satou