摘要:
An air box for a motorcycle including a motorcycle engine and a fuel tank. The air box includes a housing having an inlet configured to receive intake air into the housing and an outlet configured to direct the intake air from the housing to the motorcycle engine. A filter element is coupled to the housing and is configured to separate debris from the intake air. A mounting feature is configured to connect the housing below the fuel tank of the motorcycle.
摘要:
The present invention provides a method of operating a dynamic exhaust system of a motorcycle engine. The method includes providing a valve in the exhaust system that is movable to direct exhaust gases between a first flow path through the exhaust system and a second flow path through the exhaust system. The method includes actuating the valve at a first speed to redirect exhaust gases from the first flow path to the second flow path and actuating the valve at a second speed greater than the first speed to redirect exhaust gases from the second flow path to the first flow path.
摘要:
A riser for a motorcycle having a front wheel coupled to a steering assembly that is movable to pivot the front wheel and steer the motorcycle. The riser includes a first portion that is adapted to be coupled to the steering assembly and defines an axis. A carrier is adapted to engage the handlebar such that the carrier and the handlebar are fixedly attached to one another. The carrier is movably coupled to the first portion such that the carrier is movable along the axis.
摘要:
A method for monitoring the efficiency of a catalyst includes providing an oxygen sensor between an engine and the catalyst to generate an output signal indicative of oxygen content. The output signal is sampled to provide a first value indicative of the oxygen content of untreated exhaust. The exhaust is allowed to flow through the catalyst to produce treated exhaust and then the treated exhaust is caused to flow back to the oxygen sensor. The output signal is again sampled to provide a second value indicative of the oxygen content of treated exhaust. The second value is compared to the first value to provide an indication of the efficiency of the catalyst.
摘要:
An oil pump for an engine having a first cam shaft and a second cam shaft. The oil pump includes a housing and a first pump assembly at least partially disposed within the housing. The first pump assembly includes a rotating element that is adapted to be directly driven by the first cam shaft. A second pump assembly is at least partially disposed within the housing. The second pump assembly includes a rotating element that is adapted to be directly driven by the second cam shaft.
摘要:
A method of enhancing corrosion resistance of a hollow vessel. The method includes providing a hollow vessel including a wall defining a cavity, providing a coating tank filled with a liquid coating having charged coating elements, submerging the hollow vessel into the liquid coating, allowing the liquid coating to pass into the cavity through at least one aperture of the wall, coating the exterior surface of the wall with a portion of the coating elements, coating the interior surface of the wall with an additional portion of the coating elements, removing the hollow vessel from the coating tank, draining the liquid coating from the cavity, heating the hollow vessel in an oven, and curing the portion of the coating elements on the exterior surface and curing the additional portion of the coating elements on the interior surface.
摘要:
A primary housing for a motorcycle engine includes an inner housing that defines internal coupling apertures, transmission coupling apertures, and external coupling apertures. Internal fasteners extend through the internal coupling apertures and the transmission coupling apertures to couple the inner housing to the crankcase and the transmission. An outer housing defines coupling apertures that align with the external coupling apertures and fasteners extend through the coupling apertures, through the external coupling apertures, and into the engine crankcase to couple the inner and outer housings to the crankcase. A resonant damping device is rigidly or moveably coupled to an anti-node region of the outer housing to reduce noise emissions from the outer housing during engine operation.
摘要:
The present invention provides a motorcycle including a front wheel, a rear wheel, a frame supported by the front and rear wheels, a crankcase including a first interface portion and a first passageway exposed to the first interface portion, a reservoir located remotely from the crankcase adapted to contain a lubricant, and a transmission case supported by the frame and including a second interface portion and a second passageway exposed to the second interface portion. The second passageway is in fluid communication with the reservoir. The first interface portion is coupled to the second interface portion. The first passageway is in fluid communication with the second passageway. The first and second passageways provide fluid communication between the reservoir and the crankcase through the first and second interface portions.