Exhaust gas purification device
AssigneeYanmar Co., Ltd.
InventorsMasataka Mitsuda, Hiroshi Uehara
Life of this patent
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Abstract
An exhaust gas purification device capable of enhancing handling operability such as maintenance of an engine includes two gas purification bodies which purify exhaust gas discharged from the engine, inner cases in which the gas purification bodies are incorporated, and outer cases in which the inner cases are incorporated. The outer cases are arranged side by side in a moving direction of exhaust gas and connected to each other. One of the adjoining inner cases is inserted into the other inner case to form a double-layer structure. A loosely-fitting gap is formed between an inner side surface of the one inner case and an outer side surface of the other inner case.
Claims12
An exhaust gas purification device comprising two gas purification bodies for purifying exhaust gas discharged from an engine, adjoining inner cases for incorporating the gas purification bodies, and outer cases for incorporating the inner cases, the outer cases being arranged side by side in an exhaust gas moving direction and connected to each other,
- wherein one inner case is inserted into an other inner case of the adjoining inner cases to form a double-layer structure, and a loosely-fitting gap is formed between an outer side surface of the one inner case and an inner side surface of the other inner case, and
- wherein the outer side surfaces of the adjoining inner cases are provided with a first and a second bonding flange protruding radially outward, wherein ends of the outer cases in the exhaust gas moving direction are fixed to steps respectively formed on each of the first and second bonding flanges and wherein opposing faces of the first bonding flange and second bonding flange abut, the abutting first and second bonding flanges being detachably connected to each other.
Dependencies are inferred from the claim text.