Nippondenso Co., Ltd.

Other

Sumitomo Light Metal Industries, Ltd.

Denso Corporation

Sumitomo Metal Industries, Inc.

Tokyo Gas Company Limited

Hiroshi Ikeda

Hirokazu Tanaka

Yasuhito Takasu

Yoshifusa Shoji

Haruhiko Miyachi

Zenichi Tanabe

Toshiyasu Fukui

Yuji Suzuki

Katsuhiko Kawai

Yoshiharu Hasegawa

Koji Hirao

Toshihiko Fukuda

Hisao Kato

Daiji Isobe

Masanari Kimoto

Shoei Teshima

Yoshio Baba

Taketoshi Toyama

Sunao Fukuda

Masaki Shimizu

Yuji Hisatomi

Norio Miura

Yoshihiko Hoboh

Takahiro Koyama

Teruo Uno

Tetsuaki Tsuda

Kiyoyuki Fukui

Keizo Namba

Masanori Tsuji

Hisayo Douta

Tatsuo Miura

Yoshihiko Kamiya

Munenori Yuasa

Taro Tabata

Yasuaki Isobe

Minoru Hotta

Yoshiyuki Saito

Akinori Tsuchida

Takao Aimu

Masaya Oi

Hideyuki Uto

Kiyofumi Momma

Syunji Kajikawa

Shinji Miura

Yukihiro Fukumoto

Taketoshi Sugiura

Hirokazu Uemura

Toshinari Araki

Shinichi Tanimoto

Osamu Shibata

Takeshi Nakayama

An oxygen adsorbent which can be manufactured at a low cost, and an oxygen manufacturing equipment and an oxygen manufacturing method which are capable of producing oxygen-enriched gas at a low cost by using the oxygen adsorbent are provided. The oxygen adsorbent comprises at least an oxide of a perovskite structure. The oxide is represented by a compositional formula of SrCaFeO, wherein 0.12&#x2264;x&#x2264;0.40, 0&#x2264;&#x3c3;&#x2264;0.5. Since this oxide does not include La and Co included in a conventional oxygen adsorbent, it can be manufactured at a low cost.

Oxygen adsorbent, oxygen manufacturing equipment using the oxygen adsorbent and oxygen manufacturing method

An aluminum alloy brazing sheet has a quad-layer structure made of an outer filler material, intermediate layer material, core material, and inner filler material. The core material contains 0.5-1.6% of Mn, 0.10-0.50% of Cu, 0.05-0.50% of Mg, and 0.06-0.30% of Ti, and, as impurities, 0.5% or less of Fe, 0.5% or less of Si, and 0.1% or less of Zn, with the remainder being Al and unavoidable impurities; the intermediate layer material contains 0.2-1.5% of Mg and at least one of 0.5-4% of Zn, 0.005-0.2% of In, and 0.01-0.2% of Sn, and, as impurities, 0.3% or less of Si, 0.3% or less of Fe, 0.05% or less of Cu, 0.05% or less of Mn, and 0.3% or less of Ti, with the remainder being Al and unavoidable impurities. The thickness of the intermediate layer material is 50 &mgr;m or more and no more than the thickness of the core material. The outer filler material and the inner filler material are Al&mdash;Si&mdash;Mg alloys, the outer filler material, preferably including at least one of 0.005-0.2% of In and 0.01-0.2% of Sn.

Aluminum alloy brazing sheet for vacuum brazing exhibiting excellent corrosion resistance, and heat exchanger using the brazing sheet

A design aiding apparatus and a method, and a storage medium storing a design aiding program enable the efficient layout design of components in a multilayer wiring board formed by laminating a plurality of wiring layers. The design aiding apparatus includes (a) a first acquiring unit for acquiring information showing a first location in a lamination direction of the wiring layers, (b) a second acquiring unit for acquiring information showing a second location on a two-dimensional plane that is orthogonal to the lamination direction, and (c) a placement unit for generating information showing a space to be occupied when the component is placed in such a manner that a placement reference point of the component coincides with the second location that is on the two-dimensional plane including the first location. According to the above construction, the present invention is capable of aiding layout design of components in the wiring board.

Circuit board design aiding apparatus, design aiding method, and storage medium storing design aiding program

An aluminum alloy clad material for heat exchangers exhibiting excellent erosion-corrosion resistance, corrosion resistance, pitting resistance, and brazability, which is suitably used as an aluminum alloy clad sheet for forming a constituent member, in particular, a tube for an aluminum heat exchanger such as a radiator and heater, and as a pipe for circulating a working fluid in the aluminum heat exchanger or a pipe connected to the heat exchangers. The aluminum alloy clad sheet comprises a sacrificial anode material clad on one side of a core material, wherein the core material comprises an Al&mdash;Mn alloy and the sacrificial anode material comprises an aluminum alloy, for example, an aluminum alloy comprising 3.0-12.0% of Si with the remaining portion consisting of Al and impurities, or an aluminum alloy comprising 3.0-12.0% of Si, 1-10% of Zn, and 0.15-1.2% of Fe with the remaining portion consisting of Al and impurities. The sacrificial anode material may comprise trace amounts of one or more of In, Sn, and Mg. The clad sheet may have a three-layered clad material in which an Al&mdash;Si-type brazing material is clad on the side of the core material.

Aluminum alloy clad material for heat exchangers exhibiting excellent erosion-corrosion resistance

An aluminum alloy clad material for heat exchangers exhibiting superior strength after brazing and excellent corrosion resistance is provided. The aluminum alloy clad material comprises a sacrificial anode material which is clad on one side of a core material, wherein the core material comprises an aluminum alloy comprising 0.3-2.0% of Mn, 0.25-1.0% of Cu, 0.3-1.1% of Si, and 0.05-0.35% of Ti with the remaining portion consisting of aluminum and impurities, the sacrificial anode material comprises an aluminum alloy comprising 1.5-8% of Zn, 0.01-0.8% of Si, and 0.01-0.3% of Fe with the remaining portion consisting of aluminum and impurities, and the total number of particles of Si compounds and Fe compounds with a particle diameter (circle equivalent diameter) of 1 &mgr;m or more present in the sacrificial anode material matrix is 2&times;10,or less per 1 mm,. The clad material is suitably used as a tube material or header plate material for automotive heat exchangers such as a radiator or heater core.

Aluminum alloy clad material for heat exchangers exhibiting high strength and excellent corrosion resistance

A brazing composition for aluminum materials capable of functioning as a flux and a brazing material with a single component and providing a solid brazed joint exhibiting little local fusion. The brazing composition for aluminum materials which has the function of removing the oxide film on the surface of the aluminum material to be joined at a temperature lower than the melting point of the aluminum material and forming a eutectic aluminum alloy braze which fuses at such a low temperature by reaction with the aluminum materials, wherein the brazing composition comprises a first powder comprising at least one or more M&mdash;Si&mdash;F compounds comprising, in addition to at least Si and F, hydrogen or an alkaline metal or hydrates thereof or comprises this first powder as an component.

Brazing composition for aluminum material, aluminum material for brazing, and method of brazing aluminum material

A brazing sheet which has an excellent corrosion resistance and cladding rolling property, and is formed from a four layer aluminum alloy cladding member, and a heat exchanger of aluminum alloy, in which the brazing sheet is used, are provided. The brazing sheet is suitable for use as a member in the fluid path of an aluminum heat exchange for a car, and particularly, as a core plate of a drawn cup type heat exchanger. In the brazing sheet, one side of a core member is cladded with an intermediate member less noble than a core member, and the other side of both the core member and the intermediate member are cladded with Al--Si--Mg type cladding member, wherein the core member is of an aluminum alloy containing 0.5 to 1.6% of Mn, 0.15 to 0.35% of Cu, 0.05 to 0.50% of Mg, 0.06 to 0.30% of Ti, and the remainder being Al and unavoidable impurities, and the intermediate member contains 0.5 to 1.2% of Mn and the remainder being aluminum and unavoidable impurities, and 0.05 to 1.2% of Mg, if desired, and has a 70 to 130% deformation resistance. The intermediate member may be composed of an aluminum alloy containing 1 to 5% of Zn, 0.5 to 1.2% of Mg, and the remainder being Al and unavoidable impurities.

Brazing sheet having an excellent corrosion resistance for use in a heat

A water-cooled oil cooler includes a laminated body formed by alternately piling up formed plates having cooling water passage openings and oil passage openings in the direction of plate thickness, and fin plates having cooling water passage openings and oil passage openings in the direction of plate thickness. A protrusion is projected from a passage wall of the cooling water passage opening of the fin plate into a cooling water passage. By setting the protrusion baser than the other part of the fin plate, the protrusion is made to serve as a sacrificial corrosion section to prevent the contact section from being precedently corroded.

Heat exchanger

In order to optimally suppress effects of error exerted upon control results by any modeling error which may arise from load fluctuations or the like of the internal combustion engine approximated as a dynamic model under an advanced control theory, present and past values of an operating quantity and control quantity which correspond respectively to a control input and control output of an internal combustion engine are utilized as state variable quantities representing the internal state of the dynamic model of an internal combustion engine. Furthermore, the target value and difference are accumulated for the foregoing control quantity. Modeling of the internal combustion engine is performed in realtime, and optimal feedback gain is calculated periodically or under certain specified conditions for a regulator constructed on the basis of these model constants calculated in realtime. The operating quantity for the internal combustion engine is determined on the basis of this calculated optimal feedback gain, the foregoing state variable quantities, and the foregoing accumulated difference value.

Control apparatus for internal combustion engine

An apparatus for detecting a rough road running condition of a combustion engine car comprising means for calculating change values of an output rotational speed of the engine, means for calculating an instability of the measured change values, and means for judging the car to be on a rough road when the calculated instability is more than a predetermined amount.

Apparatus and method for detecting a road surface condition of a car

A valve operation timing regulation apparatus for changing the operation timing of the intake valve, etc., of internal combustion engine, in which the controllability is improved by avoiding operation variations of a value actuator. The rotational phase angle difference between the crankshaft and the camshaft is changed by driving a member interposed between the two shafts. A target value of the rotational phase angle difference is determined and an actual value measured by detecting operating conditions at various parts of the engine. The control deviation between the target and the actual value is calculated, so that a control unit decides a present control value of the actuator, by selecting on the basis of the error and past control values, one of a plurality of control values predetermined in a region free of unfavorable influences of actuator characteristic variations.

Valve operation timing regulation apparatus for internal combustion

A multilayer plated aluminum sheet suitable for use in automobile body panels comprises a base aluminum sheet made of aluminum or an aluminum alloy and has a first layer of zinc or a zinc alloy formed by displacement plating on the surface of the aluminum sheet and one or more layers of electroplated coating formed on the first layer by electroplating in an acidic bath. Preferably, the upper electroplated coating comprises at least one layer of zinc or a zinc alloy and the uppermost layer of the coating is formed from a metallic material having a melting point above 500.degree. C.

Multilayer plated aluminum sheets

An engine speed control apparatus comprises: a first detector for detecting an engine speed; a second detector for detecting idling condition of the engine; a first setting circuit responsive to the first detector for setting a target engine speed; a second setting circuit responsive to the first detector for setting target ignition timing; a first integrator for obtaining a first integrated value of deviation of the engine speed from the target engine speed; a second integrator for obtaining a second integrated value of deviation of ignition timing from the target ignition timing; a third detector for detecting a flow rate of intake air; a determining circuit for determining a value of a predetermined state variable, presenting an internal condition of the engine according to the engine speed, the ignition timing, the flow rate of intake air; a third setting circuit for determining the flow rate of intake air supplied to the engine according to the value of the predetermined state variable, the first and second integrated values; and a fourth setting circuit for setting the ignition timing according to the value of the predetermined state variable, and the first and second integrations.

Engine speed control apparatus

A knock control system which detects a knock occurring in an engine, a knock detector for detecting the occurrence of the knock in accordance with a knock sensor signal produced by the sensor, a first adjuster for adjusting knock control factors so as to suppress the knock on the basis of a detected signal from the knock detector, a converter for converting the knock sensor signal so as to make the frequency distribution of the knock sensor signal equal to an exponential distribution, a standard deviation calculator for calculating the standard deviation of the exponential distribution, and a second adjuster for adjusting knock control factors so that this standard deviation reaches a predetermined value, whereby the standard deviation of the frequency distribution of the knock sensor signal can be easily detected, thus making it possible to reduce the load on the electronic control system and prevent the knock detection precision from being reduced by the characteristic change of the knock sensor, engine.

Knock control system for engine

A clad material for use in heat exchangers comprises a core metal layer made of an aluminum base alloy containing Mg, and a cladding metal layer made of an aluminum base alloy containing Sn and Mg. The core metal layer can contain at least one metal selected from the group consisting of Mn, Si, Cr, Cu and Zr, and a cladding metal layer can also contain at least one metal selected from the group consisting of Zn, Ti, In and Ga.

Aluminum base alloy clad material for use in heat exchangers

Growing community of inventors

Nagoya, Japan

Hiroshi Ikeda