Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Mitsubishi Denki Kabushiki Kaisha

Takehiko Katsumoto

Osamu Hirako

Yoshiaki Danno

Katsuo Akishino

Takashi Dogahara

Daisuke Sanbayashi

Taizou Kitada

Nobuaki Murakami

Masao Fujii

Hidetsugu Kanao

Taizo Kitada

Kunio Kikuchi

Reijiro Komagome

Takashi Takemoto

Yasuyuki Makigawa

Nobuaki Shimizu

Yoshinari Fukami

Masahiko Matsuda

Hiroshi Kamada

Yasuhiko Kiritani

Gorou Yamanaka

Seiichi Oota

Takaaki Hirano

Masaji Asada

Masatoshi Ninoyu

In a cooling apparatus for an engine, a water jacket is divided into two parts, namely a forcible circulation part located chiefly round a cylinder head, and a natural convection part located chiefly round a liner of a cylinder block. The natural convection part is filled at its upper space with a cooling water and at its lower space with a cooling medium different from the cooling water. The cooling medium has a boiling point around a temperature zone to cool the liner, and also has a specific gravity larger than that of the cooling water and immiscible with the cooling water.

Partial-boil cooling apparatus for engine

Intake port device

An engine cooling device comprises an oil jacket surrounding a cylinder portion of an engine, an oil gallery supplying high-pressure oil to various parts of the engine, and an oil pressure regulator disposed between the oil jacket and the oil gallery to reduce the pressure of the high-pressure oil supplied from the oil gallery and to supply the oil at a reduced pressure to the oil jacket. Thus, the required mechanical strength of the oil jacket can be decreased to decrease the weight of the engine cylinder block.

Engine cooling device

The disclosed pump includes a casing housing a working chamber and an impeller. The impeller includes a blade wheel mounted on a rotational shaft, a plurality of pumping blades extending axially from the periphery of the blade wheel and a cover mounted within the casing and fitted over the blade wheel for rotation therewith. The cover includes an end face member defining one side of the working chamber and a cylindrical skirt portion depending from the periphery of the end face member and encircling the blade wheel and defining a hollow interior space within the impeller between the end face member and the blade wheel. The end face member has a plurality of slots through which the blades extend into the working chamber. The interior surface of the cover defines a plurality of pockets, each contoured to receive and mate with one of the blades so that in use each blade rests flush against one surface of the pocket with no space for fluid therebetween.

Pump

An intake device for an internal combustion engine, in which the intake port is formed to a specific shape without using a partition plate, provided with a valve at its inlet, and the flow direction of intake air to the combustion chambers can be varied by controlling the opening of the valve, thereby providing easy manufacture and reduced cost of the intake port and improved performance when the engine is heavily loaded.

Intake device for internal combustion engine

A device for varying the effective intake passage length of an internal combustion engine having a compact and simplified structure. A cylindrical rotor is rotatably mounted coaxially within a hollow cylindrical casing. A chamber formed within the rotor is communicated with the air filter of the engine, while a second chamber, defined between the inside of the casing and the outside of the rotor, is communicated with the intake chamber of the cylinders of the engine. A partition extends between the inner wall of the casing and the outer wall of the rotor. By turning the rotor, the effective air intake passage length is varied, thereby allowing the combustion efficiency to be maximized.

Engine intake passage length varying device

A catalytic converter apparatus for reducing pollutants from an engine having a plurality of cylinders. The converter apparatus has an upper casing for mounting on the engine and branch pipes extending to the engine and through which exhaust gas discharged from the respective cylinders in the engine is led. A lower casing is connected to the upper casing for forming an exhaust manifold in cooperation with the upper casing. The lower casing has a discharge port for the exhaust gas. A catalyst casing is disposed within the exhaust manifold and has a support member extending therefrom and held between abutting surfaces of the upper and lower casings. Bolts are inserted through the casings from above the upper casing for coupling the upper and lower casings to each other and clamping the support member therebetween.

Catalytic converter apparatus for engine

Growing community of inventors

Kyoto, Japan

Takehiko Katsumoto