摘要:
An engine air intake system including an engine air intake device and a plenum cooling compartment that is separate from the engine compartment by a baffle. The plenum cooling compartment is formed by the baffle, side doors, a fan door and a floor and contains a heat exchanger. A fan draws outside ambient air into the plenum cooling compartment, via perforations in the top and side doors, and out of the plenum cooling area via the heat exchanger. The cooling compartment is designed such that a distance between the heat exchanger and the baffle provides a gap from which the engine air intake device removes ambient air as a source for engine air. An option is provide for the system to withdraw outside ambient air from an area external to the plenum cooling compartment in high debris environments. The engine air intake system cleans the air before supplying it to the engine.
摘要:
A straddle-type vehicle is provided with an engine unit and an engine air-intake system. The engine unit includes a cylinder head provided with an air-intake port communicating with a combustion chamber, the air-intake port being provided with a valve seat disposed to an opening of the combustion chamber. The engine air-intake system includes a throttle body connected to an upstream side of the air-intake port and an air cleaner connected to an upstream side of the throttle body via an air-intake pipe so as that the air cleaner projects upward over the upper frames, the air cleaner having an inner clean section, and an axis connecting the clean section and the throttle body extends linearly toward the valve seat.
摘要:
An intake apparatus of an engine according to the present invention comprises; an air cleaner unit for filtering intake air defining an air passageway therein and filtering intake air; and a turbocharger-intercooler unit mounted at a lower portion of the air cleaner unit and compressing and cooling air supplied to the engine. An outlet air passageway of the supercharger-intercooler is configured to contact an air passageway of the air cleaner unit.
摘要:
An air cleaner housing includes an upper case, a partition wall and a lower case. The inside thereof is partitioned into an upper, filtered side and a lower unfiltered side. Intake funnel pipes, connected to front and rear cylinders, project into the filtered side. An air cleaner element is provided on the front side relative to a hollow plenum above the intake funnel pipes. Inlets in side surfaces of the unfiltered side face toward a V bank of the engine. During use, air enters the bottom of the housing, and is cleaned by the air cleaner element. The clean air flows through the filtered side of the housing, into the intake funnel pipes and toward the cylinders on the lower side. A raised portion is formed on the front upper side of the upper case, and the air cleaner element is disposed inside the raised portion.
摘要:
An air cleaner for a portable engine, includes an air cleaner case attached to an upper part of an engine body of the engine. Preferably, the air cleaner case is supported on an upper wall of a shroud covering the engine. Preferably, the air cleaner case is formed integrally with the shroud. Preferably, the air cleaner further includes an air intake structure divided into a plurality of intake passages having inlets displaced relative to each other with respect to an air flow direction in which an intake air flows.
摘要:
A throttle body of an electrically controlled throttle apparatus is constructed with a bore wall part, a motor housing part receiving a heavy component such as a motor and a connecting member that connects the bore wall part and the motor housing part with each other. The bore wall part has a cylindrical inner periphery for rotatably receiving a circular-shaped throttle valve. The connecting member is constructed with plural plate-shaped ribs. Thus, the connecting member can be rigid without becoming a thick member. Therefore, the connecting member can be restricted from contracting in its molding process, so that circularity of the cylindrical inner periphery of the bore wall part can be maintained. Thus, the cylindrical inner periphery of the bore wall part can rotatably receive the circular-shaped throttle valve without arising interference against each other, and airtightness of the throttle valve can be maintained, when the throttle valve is in the full close position.
摘要:
In an air intake system, a rear tower having a space interiorly is provided on the top surface of a body frame, a rear pillar having a passageway interiorly is mounted on the rear tower, an air intake port communicating with the passageway is provided in the rear pillar, the passageway and the space within the rear tower are connected together, an expansion silencer is connected to the space of the rear tower, and an air cleaner is connected to the expansion silencer. The top surface of a working oil tank is rendered lower than the upper end of a side plate to form a space above the top surface, where the expansion silencer is provided. A base bracket is mounted to the air cleaner, a support bracket is mounted on the side plate, and the base bracket is mounted on the support bracket to support the air cleaner above the expansion silencer.
摘要:
A modular integrated intake manifold (10) for a V-type internal combustion engine (20). A fuel module (16) nests between cylinder heads (28, 30) and has through-passages (42) leading to intake valves in the heads. An air cleaner module (12), which has an air box (60) within which intake air is filtered, also closes on one of the heads (28) to cover the exhaust and intake valves and the valve operating mechanisms of that head. A plenum/runner module (14) has a plenum that closes on the other of the heads (30) to cover the exhaust and intake valves and the valve operating mechanisms of that head. Runners (160, 162, 164, 172, 174, 176) have respective combustion air entrances disposed within a plenum chamber space (142) of the plenum and run to the through-passages of the fuel module. The runners are part of a runner pack (132) that has both complete (160, 162, 164) and incomplete (166, 168, 170) runners and that when assembled into the plenum, completes the incomplete runners. The integrated manifold includes a self-contained PCV system (104, 106, 108).
摘要:
The output characteristics of the sensing device or the control quantity of the sensing element can be adjusted by extracting or leading an adjusting terminal in addition to a power source terminal, a ground terminal, an output terminal and the like outside a housing containing and protecting an electronic circuit. Further, by arranging the adjusting terminal inside a connector housing containing terminals such as the power source terminal, the ground terminal, the output terminal and the like, contact of foreign objects with the adjusting terminal is prevented and the terminals are waterproofed for preventing corrosion since an associated connector is attached to the connector when the sensing device is actually used.
摘要:
An engine compartment structure for introducing cool air into an air intake port without providing a baffle plate is constructed such that air discharged by cooling fans is directed away from the air intake port. A rotational direction of a second cooling fan of a pair of cooling fans can be opposite to the first cooling fan. The first cooling fan is closer to the air intake port than the second cooling fan. Air volume discharged by the first cooling fan can also be larger than that of the second cooling fan. Furthermore, rotational directions of the pair of cooling fans can be selected such that the air discharged by the cooling fans is directed toward a space at the rear side of the opposite headlamp, and each air volume discharged by the respective cooling fan set differently.