Toyota Jidosha Kabushiki Kaisha

Toyota Jidosha Kogyo Kabushiki Kaisha

Masahide Kosugi

Kyosuke Ohashi

Hitoshi Goto

Hiroaki Miyano

Teigo Mikami

A built-in amplifier type combustion pressure sensor which can be assembled by simplified operation. A pressure detecting device is fixed to one end of a housing with leads extending inside the housing. The leads are bent in a predetermined form by inserting a spacer and a cover from an opening of the housing located on the opposite side of the pressure detecting device. An amplifier circuit board is inserted into the housing from the opening so that the leads are inserted into holes provided on the amplifier circuit board and protrude from the surface of the amplifier circuit board facing the opening side. The protruding end of each lead is connected to the amplifier circuit board.

Built-in amplifier-type combustion pressure sensor and manufacturing

A pressure sensor for use in an internal combustion engine includes a diaphragm member having a cylindrical part and a pressure receiving part which is subjected to an axial motion in an axial direction of the diaphragm member when a pressure in an external environment is applied to the pressure receiving part, a pressure detection member having pressure distributing parts and a piezoelectric part for generating a signal indicative of the applied pressure when it is stressed in response to the axial motion of the pressure receiving part, and a pressure transfer member for transferring the motion from the pressure receiving part to the pressure detection member, the pressure transfer member including a spherical member capable of rolling relative to the diaphragm member in a direction perpendicular to the axial direction of the diaphragm member at a position between the pressure receiving part and the pressure detection member.

Pressure sensor for use in internal combustion engine

A device for detecting a gate in an automatic pouring machine for casting which is located in the vicinity of a horizontal pouring line provided thereon with a plurality of adjacently placed molds intermittently conveyed in one direction and which has a pouring trough provided with a spout for pouring molten metal into the gate of each of the molds and horizontally swingable by a vertical pivot. The device comprises a means provided in each mold to indicate the position of the gate, an arm horizontally swingably mounted by a vertical pivot which is symmetrically placed against the pivot of the trough with respect to the pouring line, a pair of slits provided in ends of the arm and the trough which are opposite with each other upon linear alignment of the arm and the trough, a connecting pin slidably engaged in the slits to move along a perpendicular bisector on a line connecting the two pivots with each other and a photoelectric switch provided in the arm to detect the means for indicating the position of the gate. The distance between the photoelectric switch and the connecting pin becomes identical with that between the connecting pin and the spout of the trough upon linear alignment of the arm and the trough, and a driving means for moving the connecting pin operates upon receipt of a signal from the photoelectric switch to swingingly move the trough and the arm so that the spout is aligned with the gate for certain pouring operation.

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Toyota, Japan

Masahide Kosugi