Yanmar Co., Ltd.

Sumitomo Chemical Company, Limited

Funai Electric Company Ltd.

Yanmar Diesel Engine Co., Ltd.

Takashi Miyamoto

Takao Kawabe

Tetsuo Sakaki

Isamu Kawashima

Kazuhiro Yamada

Hitoshi Adachi

Yasuyuki Nakae

Isao Takagawa

Hideo Shiomi

Akio Manabe

Terumitsu Takahata

Go Asai

Tomohiro Fukuda

Kouji Shimizu

Masaji Hirota

Hidenori Nomura

Kazuyoshi Harada

Takayuki Wakamatsu

Yuta Nagashima

Toshiro Itatsu

Gou Asai

Toshio Imanaka

Takeshi Oouchida

Satoru Ujita

Tadao Hirai

Satomi Ukai

Daisuke Sasayama

Keiichirou Yuzaki

Kosuke Takebayashi

Takayuki Sakamoto

Yuichi Kitagawa

Reiko Nakagawa

Takafumi Teramoto

Rio Takahashi

Yasurou Kimura

The present invention provides a process for producing an isocyanate compound such as 3-methyl-2-methoxymethyl-1-isocyanate benzene and the like. By reacting 3-Methyl-2-methoxymethyl aniline and the like with phosgene in the presence of a tertiary amine at 10&#xb0; C. to 14&#xb0; C. in one or more solvents selected from the group consisting of toluene and xylene, isocyanate compounds such as 3-methyl-2-methoxymethyl-1-isocyanate benzene and the like can be produced at high yield.

Production method for isocyanate compound

A type 2 crystal of 2-(3-ethanesulfonylpyridin-2-yl)-5-(trifluoromethanesulfonyl)benzoxazole having diffraction peaks at 2&#x3b8;=14.0&#xb1;0.2&#xb0;, 14.3&#xb1;0.2&#xb0;, 16.5&#xb1;0.2&#xb0;, 16.9&#xb1;0.2&#xb0;, 17.6&#xb1;0.2&#xb0;, 18.8&#xb1;0.2&#xb0;, 19.9&#xb1;0.2&#xb0;, and 22.3&#xb1;0.2&#xb0; in powder X-ray diffraction using Cu-K&#x3b1; radiation is a stable crystal.

2-(3-ethanesulfonylpyridine-2-yl)-5-(trifluoromethanesulfonyl) benzoxazole crystal

A compound represented by formula (4) is produced by a step A of reacting a compound represented by formula (2): wherein Rrepresents an ethyl group or the like, R represents a halogen atom or the like, n represents 0, 1, 2, or 3, and M represents potassium or the like, with thionyl chloride to obtain a compound represented by formula (1): a step B of reacting the compound represented by formula (1) with a compound represented by formula (5): wherein Arepresents a nitrogen atom or &#x2550;CH&#x2014;, Rrepresents a trifluoromethyl group or the like, and m represents 1 or 2, to produce a compound represented by formula (3): or an acid salt thereof; and a step C of reacting the compound represented by formula (3) or an acid salt thereof in the presence of acid at 100&#xb0; C. to 180&#xb0; C. to obtain the compound represented by formula (4): 

Method for producing fused heterocyclic compound

Position-1 halogen can be selectively reduced by reacting a compound represented by formula (3):  

Method for producing 2-(halogenomethyl)-3-methylnitrobenzene

A pyridazine compound represented by formula [1]: which is useful as an active ingredient of a plant disease control agent can be produced, by steps of obtaining a compound represented by formula [3]: by reacting a compound represented by formula [4]: with a compound represented by formula [5]: obtaining a compound represented by formula [2]: by deprotecting the compound [3]; and reacting the compound [2] with a chlorinating agent. 

Method for producing pyridazine compound

The present invention provides a process for producing a compound of the formula (1) wherein X represents a hydrogen atom, etc., and Y represents a hydrogen atom, etc., which comprises step 1 of reacting a compound of the formula (2) and a compound of the formula (3) in the presence of a Lewis acid wherein R represents a hydrogen atom, etc., to obtain an adduct, and step 2 of reacting the adduct obtained in the step 1 and hydrazine to obtain the compound of the formula (1). 

Process for producing pyridazinone compound and production intermediates thereof

A method for producing a pyrazole compound represented by formula (1):  

Method for producing pyrazole compound

Provided is an engine capable of performing post-injection control with a proper fuel injection amount. The engine () comprises an engine body () equipped with a turbocharger (), an engine rotational speed sensor (), an acceleration opening degree sensor (), a boost sensor (), a turbo sensor (), and an ECU () for performing post-injection control. The ECU () recognizes the rotational speed of the engine, the supercharging pressure, the load on the engine, and the rotational speed of the supercharger, and so performs the post-injection control that the rotational speed of the supercharger becomes equal to the target rotational speed of the supercharger calculated in the ECU ().

Turbocharged engine with post fuel injection control

An object is to provide an electronically controlled diesel engine capable of inhibiting the drastic increase of the fuel injection quantity from the fuel injection quantity before acceleration without the measurement of the relation between the number of revolutions of an engine, boost pressure, and the upper smoke limit of the fuel injection quantity. An electronically controlled diesel engine includes an judge part of an acceleration () that judges whether a control of acceleration is finished or not based on a difference between a target number of revolutions of the engine (Nset) and an actual number of revolutions of the engine (Ne). The electronically controlled diesel engine includes that the calculate part of a third upper limit of a fuel injection quantity () that is included in the calculate part of the upper limit of the fuel injection quantity () that sets an initial upper limit of a fuel injection quantity (Q) to a bigger injection quantity either of an injection quantity at the time of the judgment and a limit of a injection quantity based on the actual number of revolutions of the engine (Ne) at the time of the judgment when the judge part of an acceleration () determines that the condition of acceleration in the low speed area are satisfied and recover the limit value to the normal limit value until the judgment means of cancel of acceleration in the low speed area determines that the condition of cancel of acceleration in the low speed area are satisfied.

Electronically controlled diesel engine

In a working vehicle provided with an engine which is mounted to a travel machine body, a common rail type fuel injection device which injects fuel to the engine, a continuously variable transmission which shifts power from the engine, and the exhaust gas purification device which is arranged in an exhaust system of the engine, in the case that an engine operating point Q relating to a rotating speed N and a torque T of the engine is in a low-speed and low-torque side incapable of self-renewing the exhaust gas purification device, the engine operating point Q is changed to a high-speed and low-torque side capable of self-renewing the exhaust gas purification device, and a change gear ratio of the continuously variable transmission is changed and regulated in such a manner that a vehicle speed V of the travel machine body is not changed.

Drive system control device for working vehicle

An engine in which a fluctuation in the amount of fuel injection is reduced in the entire operating tolerance of the engine. The engine () has an engine body () provided with a turbocharger (), an engine speed sensor (), a turbo sensor (), a boost sensor (), and an ECU () for correcting the amount of fuel injection. A control means recognizes an engine speed, a supercharging pressure, a supercharger speed, a fuel injection amount and corrects the fuel injection amount.

Engine

It is an object to provide an engine that makes it possible to constantly detect the number of rotations of a supercharger with a calculation load of an ECU reduced. An engineis provided with an engine basecomprised of a plurality of cylinders and a turbocharger, a crank angle sensor, a turbo sensorthat detects rotations of the turbochargeras pulses, an amplifierthat divides the pulses by an arbitrary division ratio and calculates the divided pulses, and an ECUthat judges a surge condition of the turbocharger, wherein the ECUsets a predetermined position of a piston of each cylinder in a crank angle of the engine baseto count start timing of the divided pulses, outputs the divided pulses counted from the count start timing to the number of predetermined rotations as a first output, and judges that, if a difference between the first outputs at every cylinder is more than a predetermined value, the turbochargeris in the surge condition.

In an engine equipped with a supercharger consisting of a compressor having a plurality of blades on a turbine shaft and a turbine, at least one index means provided on the turbine shaft or the plurality of blades, and a turbo angular velocity sensor, which detects a rotation of the index means and a rotation of the plurality of blades respectively and connected to an ECU. In the engine, also, a turbo angular velocity computing means, which calculates an angular velocity by obtaining a plurality of pulses per one rotation of the turbine shaft, is provided.

Engine with supercharger

A method for controlling an internal combustion engine, in which a traveling with reduced cylinders is controlled according to the idle-speed after the engine starting, so as to restrain the discharge of white smokes at the time lag for temperature equilibration soon after a cold starting. The method comprises a coolant water temperature detecting meansfor detecting the coolant water temperature in the internal combustion engine, a rotation speed detecting meansfor detecting the rotation speed of the internal combustion engineand a control means for controlling the operation of the internal combustion enginein accordance with the coolant water temperature and the rotation speed. When the internal combustion engine is evaluated that it is at the cold starting and the rotation speed reaches the predetermined rotation speed after the engine starting, a traveling with reduces cylinders is performed, which reduces the number of cylinders injecting fuels for a certain period of time.

Method of controlling internal combustion engine

There is well known that the more the timing of fuel injection is advanced, the more the start ability of an engine is improved. However, with regard to the conventional fuel injection system, when a stopping process of the engine is performed, a timer piston determining timing of fuel injection remains at a position at which the piston exists at the time that the stopping process is performed. Then, at the time of next starting of the engine, the timer piston does not often exist in the advanced angle side and the start ability may be poor. For solving this problem, an engine control module (ECM)advances a timer pistonand stops fuel injection of a fuel injection pumpat the time that actual phase difference C reaches stopping target phase difference Z so as to stop an engine

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Osaka, Japan

Takashi Miyamoto