Kubota Corporation

Sumitomo Chemical Company, Limited

Koji Okada

Hiroshi Ueda

Mikio Ishida

Yasuo Fujii

Tamotsu Kuno

Akihiko Kai

Gen Nakamura

Tamotsu Takamoto

A breather device for an engine which prevents a blow-by gas outlet passage from being blocked due to freezing, is provided, which includes a valve holder in a cylinder head cover and a breather valve supported by the holder. The holder includes a holder body having a valve port of the breather valve, a metal outlet passage pipe having a blow-by gas outlet passage formed inside, the blow-by gas outlet passage communicating with the valve port and being located below the valve port, and a heater that heats the outlet passage pipe. An outer peripheral surface of the outlet passage pipe is wrapped with the holder body formed of a material having lower thermal conductivity than that of the outlet passage pipe. The holder body has a heater insertion port, and the heater is inserted from the heater insertion port toward a heat input wall of the outlet passage pipe.

Breather device for engine

There is provided a fluid heating device for an engine with increased heating efficiency of fluid. The fluid heating device for an engine includes: a holder; a heater; and a radiator pipe, the radiator pipe is inserted into the holder, the heater is housed in the holder, heat of the heater is radiated to fluid passing through the radiator pipe via the radiator pipe. The radiator pipe is formed by an outer pipe and an inner pipe in the outer pipe, the heat generated by the heater is transferred to the outer pipe and the inner pipe, the fluid passing inside and outside the inner pipe in the outer pipe is heated by heat radiation from the outer pipe and the inner pipe.

Fluid heating device for engine

A process of aldol condensation of an active hydrogen-containing compound by a gas-phase reaction by feeding a gaseous active hydrogen-containing compound to a reactor provided with a fixed bed solid catalyst, which process is characterized in that an indirect heat transfer type, non-isothermal reactor is used to perform the aldol condensation efficiently in a commercial scale.

Process of aldol condensation by gas-phase reaction

Growing community of inventors

Sakai, Japan

Koji Okada