Nissan Motor Company Limited

Other

Hitachi, Ltd.

Nippon Hoso' Kyokai

Koichi Yamaguchi

Tomonori Urushihara

Koudai Yoshizawa

Tadashi Shoji

Tsuyoshi Taniyama

Takao Izumi

Takashi Aoyama

Yuichi Ninomiya

Kazuya Hasegawa

Shigeru Hirahata

Masatoshi Iio

Takumi Okamura

Shinobu Torikoshi

Noboru Kojima

Toshiyuki Sakamoto

Tadashi Matoba

Isao Kondo

Toshiro Ohmura

Tetsuo Mitsuhashi

Kiyoshi Nakagawa

Akio Motoyoshi

Masahiro Matsuoka

Tetsuya Yoneda

Tetsuya Ogura

In a fuel reforming system () of a fuel cell system (), which includes a reformer () generating hydrogen-containing gas to be an electromotive fuel and a combustor () generating combustion gas, the combustor () has two combustion parts including a main combustion part () and a sub-combustion part (), a fuel pre-vaporization part () between the two combustion parts and a main fuel injection valve () and a sub-fuel injection valve () which supply the fuel to the respective combustion parts. In start-up of the fuel cell system (), predetermined amounts of fuel and air for generating heat quantity required in the fuel pre-vaporization part () are subjected to lean combustion in the sub-combustion part (), the fuel to be combusted in the main combustion part () is pre-vaporized in the fuel pre-vaporization part () by use of the combustion gas from the sub-combustion part (), and the pre-vaporized fuel obtained by the pre-vaporization and air are subjected to premixed lean combustion in the main combustion part ().

Fuel reforming system

A fuel reforming system generates burnt gas by burning fuel and air in a burner () during system startup, and the temperatures of a reforming reactor () and carbon monoxide oxidizer () are raised by supplying the burnt gas to the reforming reactor () and carbon monoxide oxidizer (). The temperature of the burnt gas produced by the burner () is increased according to the elapsed time from the beginning of the startup processing.

Fuel reforming system and warmup method thereof

A fuel injector () supplies liquid fuel to a catalytic combustor () of a fuel reforming device during startup of a fuel reforming device. A controller sets the injection amount (Qf) for liquid fuel to a first injection amount (Qf) during a predetermined time (t) after starting fuel injection. After the predetermined time, the injection amount (Qf) is set to a second injection amount (Qf) which is larger than the first injection amount (Qf). When the elapsed time after starting fuel injection is smaller than a value (t), the discharged amount of uncombusted fuel is reduced by setting the injection amount (Qf) to a minimum injection amount (Qf) which allows ignition and combustion in the catalyst.

Control for catalytic combustor

An internal combustion engine includes a cylinder including at least one intake valve which is selectively open to allow at least air to enter the cylinder and at least one exhaust valve which is selectively open to allow residual gas escape from the cylinder after a firing event. An auto-ignition system for such an engine comprises a device communicably coupled with the cylinder. The device is, effective to allow an amount of high temperature and pressure residual gas to enter the cylinder in the compression stroke of an engine cycle after valve closure of the intake valve.

System and method for auto-ignition support

A system and method for controlling an internal combustion engine employs a split injection to create stratified air/fuel mixture charge. The stratified charge includes an ignitable air/fuel mixture portion around a spark plug within the surrounding lean air/fuel mixture and experiences a two-stage combustion. The first stage is combustion of the ignitable air/fuel mixture portion initiated by a spark produced by the spark plug, providing an additional increase of cylinder pressure. The second stage is auto-ignited combustion of the surrounding lean air/fuel mixture induced by such additional cylinder pressure increase. The system and method also employ generating a combustion event indicative (CEI) parameter related with combustion speed or ignition timing point of auto-ignition of auto-ignited combustion of the surrounding mixture, and determining control parameters of a spark timing controller and a fuel supply controller in response to the CEI parameter.

Combustion event indicative parameter dependent control for auto-ignited combustion

A fuel supply system has a fuel injector positioned to directly inject fuel into a combustion chamber, and it is capable of performing a split injection wherein a first fuel injection in each engine cycle precedes a second fuel injection that occurs during compression stroke in the same engine cycle. A spark plug produces a spark to ignite a first air/fuel mixture portion created due to the second fuel injection, initiating a first stage combustion. The first stage combustion raises temperature and pressure high enough to cause auto-ignition of a second air/fuel mixture portion surrounding the first air-fuel mixture portion, initiating a second stage combustion. This control is accomplished by varying at least one of a fuel injection timing of the first fuel injection, a fuel injection timing of the second fuel injection, spark timing, a proportion of fuel quantity of the second fuel injection to the total fuel injected in each engine cycle, and an EGR rate in response to at least one of engine speed and load.

System and method for enhanced combustion control in an internal combustion engine

An electronic equipment having a lever mechanism equipped with a button which when pushed operates an electric switch mounted to a printed wiring circuit board. The lever mechanism includes a first member having an end thereof which is bendably connected to the electronic equipment via a first elastic portion. A second member is also provided in this lever mechanism with an end thereof which is bendably connected to the electronic equipment via a second elastic portion. This elastic portion includes an arm for operating the electric switch. The first lever members are connected by third and fourth elastic portions mounted to the ends of the coupling member to transmit a displacement caused by the bend of the first lever member to the second lever member.

Electronic equipment and transmission device of button device used therein

A quantum state or qubit is transmitted from a sender to receiver using a quantum teleportation. For this purpose, first, second and third photons are successively produced from a laser source. The first photon is modified in polarization according to encoded information to be sent. The second and third photons are mutually quantum-mechanically correlated and shared by the sender and receiver, respectively. The sender measures the polarized states of the coincidentally appearing first and second photons and transmits measurement outcomes to the receiver via classical communication. The receiver recovers information of the first photon from the third photon based on his measurement and the measurement outcomes transmitted by the sender.

Method and apparatus for quantum communication

There is disclosed a compatible television receiver capable of receiving and reproducing both the standard system television signal and the high definition television signal and capable of confining the degradation of picture quality of the high definition television signal to the minimum, in which the received standard system television signal and high definition television signal are respectively converted to non-interlace signals, and scanning is selectively performed with either of non-interlace video signals to display images. The television receiver according to the present invention comprises a first conversion circuit for receiving an interlace standard system television signal and converting it into a non-interlace television signal, a second conversion circuit for receiving an interlace high definition television signal and converting it into a non-interlace televison signal, a circuit for discriminating whether the received signal is the standard system television signal or the high definition signal, and a circuit for selecting either of outputs of the first and second conversion circuits on the basis of the result obtained in the discrimination circuit.

Television receiver compatible with both standard system television

Growing community of inventors

Yokohama, Japan

Koichi Yamaguchi