Fuji Electric Co., Ltd.

Fuji Oozx Inc.

Sankyo Company, Limited

Warner-lambert K.k.

Fuji Elmes Co., Ltd.

Noriomi Miyoshi

Michihiko Tsuruoka

Mutsumi Nagumo

Kizuku Ohtsubo

Tetsuji Kawasaki

Yasuo Watabe

Yukimasa Tachibana

Wataru Nakagawa

Hiroshi Hoshikawa

Kazuteru Shinkai

Kouji Shiino

Tadao Hashimoto

Hitomi Kawakami

Satoshi Nishikata

Naohiro Konosu

Toshiharu Sasamoto

Yoshio Sugiyama

Jun Yamaguchi

Mamoru Shiratori

A poppet valve which has a valve stem is moved up and down to open and close a valve port in an internal combustion engine of a vehicle such as an automobile. A moving coil is wound on a bobbin mounted to the valve stem, and a magnet is mounted to a yoke fixed to a cylinder head. A plurality of sensors detect working conditions of the engine to send a signal to a working condition discriminating portion of CPU. The signal is further sent to a valve timing lift pattern memory in which optimum valve timing and lift are set corresponding to the working conditions to generate an optimum valve position signal. In the meantime, an actual position of the valve is detected by a sensor on the yoke to send an actual valve position signal to a valve position detector. In a comparator, the actual valve position signal from the valve position detector is compared with the optimum valve position signal from the valve timing lift pattern memory to apply to an electric current to the moving coil to move the valve up and down so that difference between the two signals may not occur.

Method of controlling an electric valve drive device and a control

A poppet valve is provided to open and close a valve seat in an internal combustion engine. At the end of a valve stem of the valve, a cylindrical support is fixed, and on the outer circumferential surface of the support, a moving coil is wound. There is formed an annular cavity in a yoke fixed to a bracket fixed on a cylinder head, and a permanent magnet is fixed in the annular cavity of the yoke. Between the permanent magnet and the yoke in the annular cavity, the support which has the moving coil is inserted. By a control system having CPU, an electric current is applied to the moving coil, thereby providing optimum valve timing and lift to decrease seating noise and improving engine performance.

Electric valve drive device in an internal combustion engine

A method of removing harmful gas is performed by a manner that a mixture of photocatalyzer and active carbon with air containing harmful gas and the mixture of photocatalyzer and active carbon are mixed in a chamber so as to drift the mixture in the air, the drifting mixture reacting with the harmful gas in illumination by lighting means, and the mixture catching said harmful gas so as to remove said harmful gas.

Apparatus for removing harmful gas

A vibrating transducer for detecting the resonant frequency of a vibrating diaphragm and using that frequency to determine the pressure or density of a fluid contacting the diaphragm. The device includes a container having a diaphragm separating the cavity in the container into two chambers with the diaphragm preventing flow communication between the two chambers. A first fluid inlet in flow communication with the first chamber introduces fluid to the first chamber with that first chamber having an acoustic compliance less than the mechanical compliance of the diaphragm. The second fluid input is in flow communication with the second chamber and introduces fluid into the second chamber. By controlling the acoustic compliance of the chamber with respect to the diaphragm accurate measurements of the density or pressure of the fluid can be obtained.

Vibrating type transducer

Various forms of Karman vortex generators are used for flowmeters in which the vortices generated are used to create pressure differences on opposite sides of a vibrator plate whose frequency of rotation is measured optically as a measure of the fluid flow. One form of flowmeter, used to measure the quantity of air inhaled by an internal combustion engine, uses a chamber outside the path of the inhaled gas which is maintained at a negative pressure and which communicates both with the air line and outside air such that clean air is drawn in to keep the optics enclosed therein clean.

Karman vortex flowmeter

Apparatus for inspecting capsules comprises a carrier belt which is formed into an endless belt configuration and can carry the capsules, with the capsules received separately in through-holes in the belt, and a plurality of parallelly disposed rotatable rollers which have axes of rotation extending substantially in parallel with the flow direction of the capsules being carried by the carrier belt. The rollers rotate the capsules which are in contact therewith. An optical inspecting device is provided for optically inspecting the surfaces of the capsules which are rotated in contact with the rotary rollers. The apparatus can accurately inspect very small defects on the surfaces of the capsules irrespective of the type of capsules, and is simple as well as compact in construction.

Apparatus for inspecting capsules

A Karman vortex flowmeter for deriving the velocity or quantity of fluid flow is comprised of an upstream pillar for producing Karman's vortex streets or paths that has a substantially isosceles triangle cross section, a downstream pillar for producing Karman's vortex paths that has a substantially isosceles trapezoidal cross section, a vibration chamber, and a vibrator member supported in the vibration chamber in a state of mass equilibrium relative to a revolving shaft passing through its center of gravity such that it can vibrate torsionally about the revolving shaft. The base of the upstream pillar is substantially equal to the base of the downstream pillar, and the pillars are positioned so that the bases are parallel to each other and perpendicular to the direction of the fluid flow. The vibrator member is preferably provided with a pair of taut bands supporting the vibrator member which form the revolving shaft and a frame which supports the bands. The taut bands may be pressed by a spring member to ensure uniform tension in the face of temperature changes, and may be damped with suitable elastic material. The flowmeter is provided with a photoelectric detector to detect the vibration of the vibrator member as it vibrates in response to pressure variations attributable to the Karman streets produced by the pillars. The detector preferably includes an integrator and comparator which cooperate to derive only effective frequency components.

In the particular embodiments of the invention described herein, a Karman's vortex flow metering apparatus has an oscillating plate magnetically held at the vertex of a triangular chamber located outside a flow line. Within the flow line a Karman's vortex generator is mounted transverse to the flow direction and has vortex generating slits extending along its length. Pressure detecting slits located at the end of the generator near the detector communicate through short pressure transmitting lines with opposite sides of the chamber. The resulting oscillation of the plate is detected optically or magnetically to provide signals corresponding to the flow rate.

Karman's vortex flow metering apparatus

A device for inspecting the external appearance of solid medicine having a solid medicine supplying section, a first drum-shaped conveying section for conveying solid medicines supplied by the solid medicine supplying section, at equal intervals so that one surface of each piece of solid medicine is observed. A second drum-shaped conveying section receives the solid medicine from the first drum-shaped conveying section and conveys the solid medicine at equal intervals so that the opposite surface of each solid medicine is observed. First and second observing units are provided adjacent to said first and second drum-shaped conveying sections for observing both surfaces of each piece of solid medicine respectively. A third observing unit is employed for observing the thickness of each piece of solid medicine conveyed by the first and second drum-shaped conveying sections at least before the piece of solid medicine reaches the second observing unit. A discriminating circuit determines whether each piece of solid medicine is acceptable or unacceptable according to observation results provided by the first, second and third observing units and a memory stores every solid medicine discrimination signal outputted on the basis of the observation results provided by the first and third observing units. The discrimination signal based on the observation result provided by the second observing unit and the discrimination signals stored in said memory are utilized for general determination as to whether the external appearance of each piece of solid medicine is acceptable or unacceptable.

Device for inspecting the external appearance of solid medicine

A rotary to linear reciprocating motion converter includes an endless chain 5 coupled to spaced drive and driven sprockets 3, 4, an output rod 8 slidably disposed on a guide bar 6 via a slide member 7, and a connecting rod 16 coupled between a chain link and the upper end of the output rod by pivot pins 17, 18. Rotational moments about the guide bar are absorbed by a roller 11 journalled on a shaft 10 extending out from the slide member 7 being slidably disposed in a slot 13 in the sidewall of the mechanism housing.

Mechanism for converting rotary motion into linear reciprocating motion

In a fuel cell comprising (1) a generator cell having a fuel gas (hydrogen gas) chamber, an oxidizing gas (oxygen gas) chamber and an electrolyzing solution chamber (2), a fuel gas circulating circuit for supplying fuel gas to the fuel gas chamber of said generator cell, (3) an oxidizing gas circulating circuit for supplying oxidizing gas to the oxidizing gas chamber of said generator cell, and (4) an electrolyte circulating circuit for supplying an electrolytic solution to said electrolyzing chamber, the improvement characterized in that a means for regulating the concentration of the electrolytic solution at a constant value is provided on said electrolyzing chamber and a means for removing the formed water from each of said gas chambers, a means for regulating simultaneously the gas pressures in both of said gas chambers, and a means for keeping constant the temperature of said electrolytic solution are provided on each of said gas chambers.

Fuel cell

In a fuel cell comprising (1) a generator cell having a fuel gas (hydrogen gas) chamber, an oxidizing gas (oxygen gas) chamber and an electrolyzing solution chamber, (2) a fuel gas circulating circuit for supplying fuel gas to the fuel gas chamber of said generator cell, (3) an oxidizing gas circulating circuit for supplying oxidizing gas to the oxidizing gas chamber of said generator cell, and (4) an electrolyte circulating circuit for supplying an electrolytic solution to said electrolyzing chamber, the improvement characterized in that a means for regulating the concentration of the electrolytic solution at a constant value is provided on said electrolyzing chamber and a means for removing the formed water from each of said gas chambers, a means for regulating simultaneously the gas pressures in both of said gas chambers, and a means for keeping constant the temperature of said electrolytic solution are provided on each of said gas chambers.

In a fuel cell comprising (1) a generator cell having a fuel gas (hydrogen gas) chamber, an oxidizing gas (oxygen gas) chamber and an electrolyzing solution chamber, (2) a fuel gas circulating circuit for supplying fuel gas to the fuel gas chamber of said generator cell, (3) an oxidizing gas circulating circuit for supplying the oxidizing gas to the oxidizing gas chamber of said generator cell, and (4) an electrolyte circulating circuit for supplying an electrolytic solution to said electrolyzing chamber, the improvement characterized in that a means for regulating the concentration of the electrolytic solution at a constant value is provided on said electrolyzing chamber and a means for removing the formed water from each of said gas chambers, a means for regulating simultaneously the gas pressures in both of said gas chambers, and a means for keeping constant the temperature of said electrolytic solution are provided on each of said gas chambers.

Growing community of inventors

Kawasaki, Japan

Noriomi Miyoshi