EXHAUST PRESSURE DETECTOR OF ENGINE

Japanese Patent JP3906833

B2

PROBLEM TO BE SOLVED: To improve durability by restraining influence of condensed water in pressure transmission pipes 40, 41 and making the influence of heat and vibration of an engine 1 hard to be exerted, in a device for detecting the exhaust pressure from an exhaust pipe in a vertical engine in which a filter device is mounted on the exhaust pipe.
SOLUTION: Metallic pressure take out pipes 22, 23 are communicated with the exhaust pipe 7, and disposed along one side of a power unit 4 composed of the engine 1 and a transmission 3. Metallic pipes 28, 29 are supported on the power unit 4, and disposed to cross the power unit 4. The pressure take out pipes 22, 23 and the metallic pipes 28, 29 are connected by first hoses 26, 27 extended substantially in the width direction of the car body, and the metallic pipes 28, 29 and a pressure sensor part 34 provided on the upper side of an engine room2 are connected by second hoses 32, 33 extended substantially in the width direction of the car body. The thus constructed pressure transmission pipes 40, 41 are disposed upward rather than horizontally extending from the exhaust pipe 7 to a pressure sensor part 34 over the total length.

Yoshihiro Izawa
Kurisu Tsuji

JP2003353534A

April 18, 2007

October 14, 2003

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Mazda Corporation Inc

F02D35/00; G01L13/00; F01N3/00; F02D45/00; G01L23/24; G01L23/26; (IPC1-7): F02D35/00; F01N3/00; G01L13/00; G01L23/24; G01L23/26; //F02D45/00

JP211816A
JP2002257664A
JP1089047A
JP200248664A
JP200270548A

Hiroshi Maeda
Hiroshi Koyama
Hiroshi Takeuchi
Yuji Takeuchi
Katsumi Imae
Tomoo Harada

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