摘要:
An engine (8) is mounted to a vehicle body by means of vibration isolating mounts (8E), and a support member (15) is mounted to the engine (8). Vibration isolating members (20) are provided between this support member (15) and a mounting bracket (17) mounted to an exhaust gas treatment device (16). Accordingly, even in cases where the engine (8) has generated high-frequency vibrations, these vibrations can be damped by the vibration isolating mounts (8E) and the vibration isolating members (20). In consequence, treatment members constituting the exhaust gas treatment device (16), such as a catalyst, a filter, and a sensor, can be protected from the vibrations of the engine (8). In addition, as the exhaust gas treatment device (16) is provided with the mounting bracket (17), the vibration isolating members (20) can be reliably mounted to the exhaust gas treatment device (16) by means of the mounting bracket (17).
摘要:
An exhaust pipe connection structure for interconnecting a connection pipe and an exhaust pipe that are arranged in an exhaust system of an internal combustion engine. Either of the connection pipe or the exhaust pipe is inserted into the other, and the portion where the connection pipe and the exhaust pipe overlap each other is radially deformed and swaged.
摘要:
A wrappable heat shield for an exhaust pipe and methods of construction and installation thereor includes an outer layer of metal having opposite inner and outer faces extending between opposite sides. An inner layer of non-woven insulation is attached to the outer layer by a crimped portion extending along one of the opposite sides of the outer layer. The inner layer has a width sufficient to extend completely about a circumference of the exhaust pipe and is arranged in continuous contact with the exhaust pipe about its circumference while the outer layer remains spaced therefrom.
摘要:
The invention relates to an exhaust pipe assembly (10). There is a need for an exhaust pipe assembly (10) which transmits less noise to the environment. The exhaust pipe assembly (10) includes a hollow exhaust pipe (12), and a hollow shield (14) which surrounds at least a portion of the pipe (12). The shield (14) is supported from and separated from the pipe (12) by a plurality of elastomeric support elements (16, 30) which are interposed between the pipe (12) and the shield (14). Each support element (16) may include a larger body (18) positioned between the pipe (12) and the shield (14), and a smaller stem (20) which projects from the body (18) and extends into a bore (22) formed in the shield (14). Each support element (16) is preferably formed by injecting an elastomeric material through a corresponding one of the bores (22) to form the body (18) in the space between the pipe (12) and the shield (14). Alternatively, each elastomeric support element (30) may be an elongated body.
摘要:
An emission control system, includes: an exhaust pipe portion, adapted to guide exhaust gas from an engine (1) to outside; a catalyst (6), accommodated in the exhaust pipe portion; an additive injection valve (23), provided at the exhaust pipe portion; located at upstream side of the catalyst (6), and configured to inject additives to be supplied to the catalyst (6) toward a flow of the exhaust gas in the exhaust pipe portion. The exhaust pipe portion has a flow path section located at upstream side of the catalyst (6), which intersects an injection flow of the additives injected by the additive injection valve (23), and the flow path section is made to have substantially the same shape as an injection region of the injection flow which confronts the exhaust gas.
摘要:
Problem It is an object of the present invention to provide a catalyst arrangement construction of a motorcycle 10 where a compact arrangement is available while a lowest ground height is ensured. Solution An engine 211 has a crankcase 214, and a cylinder 215 which extends from an upper portion of the crankcase 214 toward a front side. In a space which is formed at an upper side of a horizontal surface which substantially horizontally extends from a bottom surface of the crankcase 214, a catalyst storage chamber 280 is arranged in such a manner that an axis L of the catalyst converter 280 is in a direction of a crankshaft CR. The space is arranged just below a front surface of the cylinder 215 and forward of a front surface of the crankcase 214.