Nippon Furnace Kogyo Kabushiki Kaisha

Nippon Furnace Kogyo Kaisha, Ltd.

Alpha Corporation

Toyota Jidosha Kabushiki Kaisha

Nkk Corporation

Chiyoda Corporation

Japan & Nippon Furnace Kogyo Kaisha, Ltd.

Nippon Furnace Koayo Kabushiki Kaisha

Ryoichi Tanaka

Mamoru Matsuo

Hitoshi Yahara

Masao Kawamoto

Kazuhisa Mitani

Jun Sudo

Yosuke Kataoka

Tomohiko Nishiyama

Tsutomu Yasuda

Makoto Miyata

Toshikazu Akiyama

Saeko Tatemichi

Toshiaki Hasegawa

Hiroaki Sato

Toshio Ishii

Shunichi Sugiyama

Noriaki Ito

Ryuji Minemura

Hitoshi Kaji

Takeshi Tada

Yutaka Saitoh

Ryosuke Shimizu

Tetsuhiko Ohki

Hiroshi Miyama

Masashi Katsuki

Hiroshige Ikebe, Deceased

Akinori Hokabori

Yukio Mizutani

Hirokuni Kikukawa

Shigeo Kurioka

Yoshiki Fujii

Noriaki Itou

A door handle device for a vehicle includes a handle base fixed to a door of a vehicle, and an operation handle rotatably coupled to the handle base. The operation handle includes a coupling protruding portion that is provided at an end portion on a rotation center side of the operation handle. The handle base includes an elastically deformable elastic piece that is adjacent to the coupling protruding portion. Movement of the operation handle toward a rotation tip end is restricted by elastically engaging a stopper protruding portion formed on any one of the coupling protruding portion and the elastic piece with a stopper fitting portion formed on the other by using elastic deformation of the elastic piece. Movement of the elastic piece in a disengagement direction of the stopper protruding portion is restricted by a clip mounted on the handle base.

Handle device for vehicle

An inside handle device includes a handle base attached to a door panel of a vehicle; a lock lever rotatably supported on the handle base, a stopper portion provided on the handle base and limiting a rotation range of the lock lever, and an impact absorbing portion provided on the handle base and absorbing impact generated by a contact of the lock lever with the stopper portion.

Inside handle device

An inside-door-handle device for a vehicle is provided with a base part and a cover. A swinging space is provided between the base part and the cover. The cover has a locking section; the base part has a lock-receiving section. A swing motion of the cover relative to the base part is regulated by the elastic locking between the locking section and the lock-receiving section. If the cover swings relative to the base part due to pushing operation toward the cover, the lock between the locking section and the lock-receiving section is released, and the cover can be separated from the base part.

Inside-door-handle device for vehicle

An inside door handle device includes: a handle base () fixed to an inner panel that composes a door interior of an automobile; an opening portion () formed of a through hole formed on one side of the handle base (); an operation recessed portion () that has a recessed shape and is arranged adjacent to the opening portion () on the other side of the handle base (); fixation portions () formed in the operation recessed portion () and fixed to the inner panel; a handle body () in which a grip portion () located on a tip end side is urged and held onto the operation recessed portion () while a base end side is being swingably supported on the opening portion () with handle support portions () interposed therebetween; and a support beam () protruded on the opening portion () and formed into a fixed-fixed beam shape bent into an L-shape.

Inside door handle device

Radiant tube burner

High-temperature gas generator

A combustion method in an industrial combustion system is provided, in which a low temperature combustion air to be fed to a combustion zone of the combustion system is preheated through a high-cycle regenerative combustion system. The high-cycle regenerative combustion system includes a pair of regenerators of honeycomb structure having a plurality of fluid passages defined by honeycomb walls thereof. Either of the combustion air and an exhaust gas generated in the combustion zone is adapted to selectively flow through the fluid passages, and the high-cycle regenerative combustion system has a switching cycle time set to be 60 seconds at the longest, so that the regenerator is alternately in heat-transferable contact with the combustion air flow and the exhaust gas flow to perform heat exchange therebetween. The regenerator has a temperature efficiency greater than 0.7 and the combustion air flow is preheated by the exhaust gas through the regenerator in the high temperature efficiency, whereby the combustion air is continuously preheated up to a temperature range above 800.degree. C. The high temperature air flow is continuously introduced into the combustion zone and a combustion fuel is fed to the air flow, so that a combustion reaction is generated and maintained in the combustion zone by the preheated air flow and the combustion fuel.

Combustion method of industrial combustion system

A boiler is provided with a radiation heat transfer section in its combustion chamber, which has therein, at least one regenerative-heating burner system including a pair of burners each with a regenerative bed. The burners receive combustion air and exhaust combustion gas which passes through the regenerative beds. Combustion is alternately effected in one of the burners and combustion gas is passed into the other burner, and exhausted through the corresponding regenerative bed of this other burner. Surplus thermal energy which is not completely consumed in the radiation heat transfer section is recovered in the regenerative bed. Combustion air than passes through the heated regenerative bed to heat the air. The boiler temperature is kept flat across the boiler. That is, the temperature is kept almost constant across the combustion chamber. This is done by maintaining a high rate of forced supply of more than 60 m/s for the combustion air. Also, the combustion air is heated to above the ignition point of the fuel, that is, about 800.degree. C. These two factors increases thermal efficiency while reducing NO.sub.x emissions.

Boiler

Regenerative burner and regenerative heat exchange system applicable

Low-NOx burner

A small once-through boiler can avoid burning caused due to excessive heating of water pipes and burning around a fire hole of a burner in particular and heighten the heat load of a combustion chamber to further reduce the size of the system as compared with a prior art boiler. In the small once-through boiler, at least one regenerative burner system 20 is provided in a combustion chamber 1, the regenerative burner system 20 carrying out supply of combustion air A and exhaust of combustion gas E through a regenerator 22 and relatively changing flows of the combustion gas E and the combustion air A with respect to the regenerator 22 so as to supply the combustion air A via the regenerator 22 heated by heat of the combustion gas. Water pipe group 4 is provided apart from the combustion chamber wall surface 3 to form a passage 12 between the rear surface of the water pipe group 4 and the combustion chamber wall surface 3. Communicating openings 10 and 11 through which the combustion gas C passes are formed between adjacent water pipes at upper and lower ends of the water pipe group 4 so that a part of the combustion gas C can pass through the passage 12 provided at the rear of the water pipe group 4, whereby a part of the combustion gas C flows from the lower communicating openings 11 into the passage 12 to move upward and again flows from the upper communicating openings 10 into the combustion chamber 1.

Small once-through boiler

A high-cycle regenerative combustion system has first and second regenerative heat exchanger units. A four-way valve is provided for alternately bringing the heat exchanger units into contact with a low temperature fluid and a high temperature fluid. The valve is switched at a switching cycle time not longer than 60 seconds. Each heat exchanger unit has a void ratio .epsilon. which substantially provides the maximum value (Q/V)max of the volumetric efficiency (Q/V). The temperature efficiency .eta. t is preset to be a value in a range between 0.7 and 1.0. The heat transmission coefficient h and the heat transmission area A of the heat exchanger unit are determined such that the temperature efficiency, which is calculated in accordance with a specific equation as being a function of the heat transmission coefficient, the heat transmission area and the switching cycle time .tau., falls under the preset value within the range mentioned above. Each of the first and second heat exchanger units has the cell pitch P and the cell wall thickness b, which provide the above-mentioned values of the void ratio, heat transmission coefficient and heat transmission area. Thus, a compact and high-performance regenerative heat exchanger can be obtained, which has a reduced overall volume while exhibiting the large heat transmission rate and high temperature efficiency.

High-cycle regenerative heat exchanger

Four-port valve

An industrial furnace and a burner for regenerative combustion includes a heat storage member, a switching mechanism disposed on one end of the heat storage member, and a burner tile disposed on the opposite end of the heat storage member. The burner tile has a protruding portion extending ahead an air supply and gas exhaust surface. The switching mechanism has a stationary disk and a rotatable disk which slidably contacts the stationary disk. A speed of supply air to the furnace is in operation equal to or higher than a speed of exhaust air therefrom.

Industrial furnace and a burner for conducting regenerative combustion

A boiler is provided with a radiation heat transfer section in its combustion chamber, which has therein, at least one regenerative-heating burner system including a pair of burners each with a regenerative bed. The burners receive combustion air and exhaust combustion gas which passes through the regenerative beds. Combustion is alternately effected in one of the burners and combustion gas is passed into the other burner, and exhausted through the corresponding regenerative bed of this other burner. Surplus thermal energy which is not completely consumed in the radiation heat transfer section is recovered in the regenerative bed. Combustion air then passes through the heated regenerative bed to heat the air. The boiler temperature is kept flat across the boiler. That is, the temperature is kept almost constant across the combustion chamber. This is done by maintaining a high rate of forced supply of more than 60 m/s for the combustion air. Also, the combustion air is heated to above the ignition point of the fuel, that is, about 800.degree. C. These two factors increases thermal efficiency while reducing NO.sub.x emissions.

Boiler with increased flame temperature and output

Growing community of inventors

Yokohama, Japan

Ryoichi Tanaka