Noritz Corporation

Koji Shimomura

Hidenori Hata

Takashi Hasegawa

Takanori Nagano

Shuji Kameyama

Yasutaka Kuriyama

Takashi Akiyama

Masahiro Iguchi

Masaaki Matsuda

Shingo Kimura

Yasuhiko Sato

Kazuhiro Kimura

Keiichi Miura

Itsuo Nagai

Kozo Uehara

Shigeo Sugie

Takao Morigaki

Toshikazu Miki

Noriyuki Kuribayashi

Masahiko Shimazu

An exhaust adapter secures an exhaust tube relative to an exhaust pipe. The exhaust adapter is formed to have an annular shape enclosing a through hole, and is mounted on the outer peripheral surface of the exhaust tube and on the inner peripheral surface of the exhaust pipe by inserting the exhaust tube into the through hole. When the exhaust adapter is being fitted on the outer peripheral surface of the exhaust tube, the inner peripheral surface of the exhaust adapter presses the outer peripheral surface of the exhaust tube, and when the exhaust adapter is being fitted on the inner peripheral surface of the exhaust pipe, the outer peripheral surface of the exhaust adapter presses the inner peripheral surface of the exhaust pipe.

Exhaust adapter, exhaust structure for water heater, and method for installing exhaust adapter

A tube spacer S formed by bending a wire, includes a plurality of projectionsand a base-bending portion. Each of the projectionsis inserted between tubes, and has a pair of extending portionsextend in X direction and a front-bending portionfor connecting both front ends of the pair of extending portions. The base-bending portionconnects both rear ends of the projectionsso that the projectionsare arranged at interval in Z direction. With this structure, manufacturing cost for the tube spacer S can be low, and the tubes can be stably supported.

Tube spacer, method of manufacturing the same, and heat exchanger

A combustion apparatus ( ) is generally composed of a principal part ( ), a supplementary part ( ) and a burner port assembly ( ). Four metal plates ( ) constituting the principal and supplementary parts ( ) are pressed to have in them several protuberances and recesses. These metal plates are laid one on another to form in them some hollow spaces and sealed regions. These hollow spaces communicate with each other to form a thin gas passage ( ) together with a thick gas passage ( ) in this combustion apparatus ( ) in such a manner that its condition of thick and thin fuel combustion is rendered more stable.

Combustion apparatus

A combustion apparatus ( ) with a burner port assembly ( ) comprises an elongated first array of main burner ports ( ) for jetting and burning a fuel gas mixture of a concentration to make main flames. The combustion apparatus ( ) comprises at least one second arrays of auxiliary burner ports ( ) for jetting and burning a further fuel gas mixture of a different concentration to make auxiliary flames, wherein the second arrays of said auxiliary burner ports ( ) extend along the first array of said main burner ports ( ). The burner port assembly ( ) is constructed using inner and outer wall segments ( ) together with outermost wall segments ( ) or bands ( ). One of the bands ( ) faces the corresponding one of said outermost segments ( ) so as to define between them collateral burner ports ( ).

Growing community of inventors

Akashi, Japan

Koji Shimomura