ENGINE COOLING STRUCTURE FOR MOTORCYCLE

A front fender is provided in front of an air-cooled engine which is a drive source of a motorcycle. An air introduction hole which opens frontward is formed at a front part of a cylinder head of the air-cooled engine. A space around a plug attachment portion for a spark plug and a space in front of the cylinder head communicate with each other through the air introduction hole. A guide portion for guiding incoming wind toward the air introduction hole is formed at a rear part of the front fender. 1. An engine cooling structure for a motorcycle including an air-cooled engine , which is a drive source , and a front fender provided in front of the air-cooled engine , whereinan air introduction hole is formed at a front part of a cylinder head of the air-cooled engine such that the air introduction hole opens frontward and a space around an attachment portion for a spark plug and a space in front of the cylinder head communicate with each other through the air introduction hole, anda guide portion is formed at the front fender and configured to guide incoming wind toward the air introduction hole.2. The engine cooling structure as claimed in claim 1 , whereina lower end of a rear portion of the front fender is located upward relative to a lower end of a cylinder head cover of the air-cooled engine.3. The engine cooling structure as claimed in claim 1 , whereinthe front fender includes a fender front portion, a fender rear portion, and a fender intermediate portion located frontward of the fender rear portion and connecting the fender front portion and the fender rear portion,a dimension in a vehicle widthwise direction of the fender front portion is greater than that of the fender rear portion, anda dimension in a vehicle widthwise direction of the fender intermediate portion gradually decreases from a front end thereof toward a rear side.4. The engine cooling structure as claimed in claim 1 , comprising:a shroud provided so as to be located frontward relative to the ...

Air-cooled engine

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105) ...

AIR-COOLED ENGINE

Two-wheeled vehicle

A motorcycle air cleaner housing comprises: a housing element (1330), an air intake (1370) defined in the housing element (1330), an air output defined in the housing element (1330) an air cleaning path linking the air intake to the air output, the air cleaning path including an air cleaner (1332) disposed therein. The air cleaner housing further comprises: an air deflector (1250) coupled to the housing element (1330), the air deflector including a deflector input positioned to receive ambient air, the air deflector providing an air deflector path distinct from the air cleaning path.

Cooling apparatus of engine

A cooling apparatus of an engine according to the present invention includes a cooling fan, a fan housing, and a shroud guiding cooling air from the fan housing to the outer circumferential surface of an engine body portion. Further, a cooling air passage passing throughout in a cylinder head from one side surface of the cylinder head to the other side surface thereof is formed in the cylinder head, and a narrowed or throttle guide portion which guides the cooling air from the interior of the fan housing to an inlet opening of the one side surface of the cooling air passage is formed in the shroud.

Internal combustion engine and straddle-type vehicle including the same

A forced air-cooled engine includes a crankcase, a cylinder block, a cylinder head, a cooling fan, and a shroud arranged to cover a portion of the crankcase, the cooling fan, and a portion of the cylinder block and a portion of the cylinder head. Fins are provided at least in a region of the cylinder block covered by the shroud. The shroud includes a facing wall portion that faces the fins. An exhaust opening is provided between the facing wall portion and the cylinder block, and opens away from the cooling fan.

AIR-COOLED ENGINE

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder­-cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105).

Internal combustion engine and straddle-type vehicle including the same

An engine includes a crankcase, a cylinder block, a cylinder head, a piston, a cooling fan, and a shroud having an inner wall portion and an outer wall portion. A suction port is provided in a region of the outer wall portion facing the cooling fan. The inner and outer wall portions define a duct extending from the suction port to reach at least a portion of the cylinder block and/or at least a portion of the cylinder head.

Air-cooled engine

Air-cooled engine

Two-wheeled vehicle

A two-wheeled vehicle (2) includes a frame (4), a front and rear wheel (6, 8) supported at the frame (4), a steering assembly (20) comprising a front fork (72) coupled to the front wheel (6) and a handlebar (28) coupled to the front fork (72), for steering the vehicle (2), a driver seat (26) mounted to the frame (4), and an engine (12) carried by the frame (4) for imparting torque to the rear wheel (8). The invention is concerned with accessory structures mountable to the vehicle (2), in particular a windshield which can be coupled to handlebars (28) and or front forks (72) of the vehicle (2), and air deflection fairings and deflectors (66; 150; 220), amongst others. Fig. 1 CC) Ln co \-O C> ry-I co \-O Ln -,D -,D Lr) ...

AIR-COOLED ENGINE

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder~-cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105).

COOLING FIN STRUCTURE FOR VEHICLE-MOUNTED INTERNAL COMBUSTION ENGINE

An internal combustion engine (10) mounted on a two-wheeled vehicle has a forwardly tilted or substantially horizontal cylinder, and a cooling fin structure (31) including parallel cooling fins (30) extending in the direction of advance of the two-wheeled vehicle is formed on the upper surface of the engine. Reinforcing ridges (34) are formed integrally with the surfaces of the cooling fins (30), and the reinforcing ridges (34) of each cooling fin (30) are adapted not to be connected to the reinforcing ridges (34) of adjacent cooling fins (30) and to the adjacent cooling fins (30). The reinforcing ridges (34) are alternately arranged. Also, the reinforcing ridges (34) are arranged so as not to be superposed on the reinforcing ridges (34) of adjacent cooling fins (30) in a view in the longitudinal direction of the cooling fins. Bottom walls (35) between adjacent cooling fins (30) extend in the direction of advance of the two-wheeled vehicle. The construction makes earth and sand less likely ...

AIR-COOLED ENGINE

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder-cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105).

Air-cooled engine

Two-wheeled vehicle

A motorcycle air cleaner housing comprises: a housing element (1330), an air intake (1370) defined in the housing element (1330), an air output defined in the housing element (1330) an air cleaning path linking the air intake to the air output, the air cleaning path including an air cleaner (1332) disposed therein. The air cleaner housing further comprises: an air deflector (1250) coupled to the housing element (1330), the air deflector including a deflector input positioned to receive ambient air, the air deflector providing an air deflector path distinct from the air cleaning path.

Cylinder cover cooling structure of engine

本发明涉及一种发动机的气缸盖冷却结构，特征是：所述进气歧管与冷却风扇安装在发动机体的同一侧，进气歧管安装在冷却风扇的上方，所述进气歧管上有一个整体式的外壳；所述外壳底部设置有面对风扇罩内部敞开的吸入口，所述进气歧管的侧部与气缸盖密封连接，所述风扇罩中央设有进气口，所述风扇罩上部设有出气口；所述敞开的吸入口与风扇罩上部的进气口相通；所述气缸盖内部设有第一冷却通道和第二冷却通道，所述第一冷却通道侧面安装有一引风板导向，以防止热空气再回流到冷却风扇的现象。本发明利用发动机零部件本身的结构特点，巧妙的安排其相对的装配位置，从而可以简化不必要的结构，实现成本的降低和效率的提高。

Air-cooled engine

An air-cooled engine that is cooled by cooling air, the engine (10) comprising: a crank case (31) for accommodating a crankshaft (12); a cylinder block (33) that is formed integrally on the crank case (31) and is provided with a cylinder (26) having a reciprocating piston (61); and a base (34) that is integrally formed on the crank case (31) and can be mounted on arbitrary mating member by a plurality of fastening members; said air-cooled engine (10) is whereby the base (34) comprises a plurality of mounting holes (123,124,125,126) through which the fastening members can be inserted; the cylinder block (33) is disposed at an incline in relation to the base (34) and has a plurality of cooling fins (141) formed integrally in the shape of a loop so as to encircle the outer periphery; and the cooling fins (141) have base-side halves (143,152) that are disposed closer to the base (34) in relation to the axial line (109) of the cylinder (26) and are formed so as to be parallel to the bore center ...

TWO-WHEELED VEHICLE

A motorcycle air cleaner housing comprises: a housing element (1330), an air intake (1370) defined in the housing element (1330), an air output defined in the housing element (1330) an air cleaning path linking the air intake to the air output, the air cleaning path including an air cleaner (1332) disposed therein. The air cleaner housing further comprises: an air deflector (1250) coupled to the housing element (1330), the air deflector including a deflector input positioned to receive ambient air, the air deflector providing an air deflector path distinct from the air cleaning path.

VEHICLE STRUCTURE FOR MOUNTING AIR-COOLED INTERNAL COMBUSTION ENGINE

estrutura de aleta de resfriamento em uma motocicleta

AIR-COOLED ENGINE

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder~-cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105).

COOLING STRUCTURE FOR ENGINE CYLINDER HEAD

A cooling structure for the cylinder head of an engine comprises an engine body (1), a flywheel (2), a cooling fan (3), a fan housing (4), an intake manifold (5), a cylinder head (6). The flywheel (2) is fixedly attached to one end of a crankshaft and a plurality of fins (2a) arranged upon the outer periphery of the flywheel (2) constitute the cooling fan (3). The fan housing (4) is arranged to cover the cooling fan (3). The intake manifold (5) and the cooling fan (3) are arranged on the same side of the engine body (1), said intake manifold (5) being arranged above the cooling fan (3). An integral shell (5a) is arranged on the intake manifold (5) and above the fan housing (4), and an air intake port (5b) is arranged at the base of the integral shell (5a) and opens to the interior of the fan housing (4). One side (5c) of the intake manifold (5) is connected to the cylinder head (6). An air intake port (4a) is centrally arranged on the fan housing (4) and an air outlet (4d) is arranged at ...

General-purpose engine

A general-purpose engine is provided with an engine body having an exhaust system part connected to a cylinder, and also with a cooling mechanism for cooling the engine body. The cooling mechanism is provided with a cooling fan which rotates to generate a cooling air flow, a discharge section which discharges the cooling air flow generated by the rotation of the cooling fan, and a cooling air flow opening which is disposed in the upper part of a partition for separating a cylinder chamber having the cylinder provided therein from a muffler chamber having a canister muffler provided therein, connects the cylinder head side of the cylinder chamber and the upper side of the muffler chamber, and causes a cooling air flow to flow from the cylinder head side of the cylinder chamber to the muffler chamber.

AIR-COOLED ENGINE

An air-cooled engine is cooled by cooling air. The air-cooled engine includes a cylinder block and a cylinder head. The cylinder block has cylinder cooling through-ducts capable of transmitting cooling air, on the periphery of a cylinder. The cylinder head has a head-cooling through-duct capable of transmitting cooling air. The cylinder-cooling duct extend in a direction perpendicular to the axial line of the cylinder, and are communicated with each other by means of communication channels.

ENGINE APPARATUS

An engine apparatus includes an exhaust gas purifier configured to purify exhaust gas from an engine. The exhaust gas purifier is mounted on the engine with a longitudinal direction of the exhaust gas purifier being orthogonal to an output shaft of the engine. A cooling fan is disposed on one side surface of the engine that intersects the output shaft. The exhaust gas purifier is supported by a cylinder head at a portion on an upper surface of the engine that is closer to the cooling fan.

Variable volume combustion chamber system

A variable volume combustion chamber system for a four-cycle internal combustion engine features an engine having a cylindrical combustion chamber inside. An intake port and an exhaust port are located on a chamber side wall. An ignition plug port and a tangentially-mounted fuel injection port are also located on the chamber side wall. A cylindrical piston is pivotally located on a connecting rod in the combustion chamber. The system features an adjustable volume head assembly located on a chamber top featuring a solenoid connected to a cylindrical head and sleeve component via a positioning shaft. The cylindrical head and sleeve component adjustably extends through the chamber top into the combustion chamber and is movable via actuation of the solenoid.

estrutura de resfriamento de motor de combustão para uma motocicleta.

GENERAL-PURPOSE ENGINE

A general-purpose engine is provided with an engine body having an exhaust system part connected to a cylinder, and also with a cooling mechanism for cooling the engine body. The cooling mechanism is provided with a cooling fan which rotates to generate a cooling air flow, a discharge section which discharges the cooling air flow generated by the rotation of the cooling fan and a cooling air flow opening which is disposed in the upper part of a partition for separating a cylinder chamber having the cylinder provided therein from a muffler chamber having a canister muffler provided therein, connects the cylinder head side of the cylinder chamber and the upper side of the muffler chamber, and causes a cooling air flow to flow from the cylinder head side of the cylinder chamber to the muffler chamber.

ENGINE

Cylinders (14, 16) having fins (94, 96) on the outer periphery are provided to a crankcase (12) of an engine (10). A crank shaft (20) penetrates through the crankcase (12). A cooling fan (22) is provided coaxially to the crank shaft (20) on the outside of the crankcase (12). A first cover (26) is provided so as to cover the cylinders (14, 16), the outside of the crankcase (12), and the cooling fan (22), and a second cover (28) is provided so as to be attachable and detachable with respect to the first cover (26). The first cover (26) comprises a first opening (198) provided to a position facing the cooling fan (22), and second openings (200, 202) provided to positions facing the fins (94, 96). The second cover (28) comprises an air intake (30) provided to a position facing the first opening (198), and is attached to the first cover (26) so as to cover the first opening (198) and the second openings (200, 202).

AIR-COOLED ENGINE

An air-cooled engine is cooled by cooling air. The air-cooled engine includes a cylinder block and a cylinder head. The cylinder block has cylinder cooling through-ducts capable of transmitting cooling air, on the periphery of a cylinder. The cylinder head has a head-cooling through-duct capable of transmitting cooling air. The cylinder-cooling duct extend in a direction perpendicular to the axial line of the cylinder, and are communicated with each other by means of communication channels.

AIR-COOLED ENGINE

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder--cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105). © KIPO & WIPO 2009 ...

INTERNAL COMBUSTION ENGINE FOR VEHICLE

An internal combustion engine for a vehicle, in which a cylinder section is placed so that its axis is substantially horizontal and in which two plugs are installed on a cylinder head having an air intake port and an exhaust port of the cylinder. On the cylinder head is provided an air jacket for cooling around plug holes. In the air jacket, there is formed a main path running from a wind inlet opening to a wind outlet opening, and the main path is bent in a substantially L shape. One of the plugs is placed near the wind inlet opening and the other plug is placed near the wind outlet opening.

Motorarbeitsgerät mit verbesserter Vergaservorwärmung

Motorarbeitsgerät (100) wie eine Kettensäge, ein Handschleifgerät, eine Handkreissäge, ein Rasenmäher, ein Rasentrimmer oder ein sonstiges Handwerkzeug oder Gerät zur Garten- und Landschaftspflege, aufweisend einen Verbrennungsmotor (10) mit wenigstens einem Zylinder (11) und wenigstens einem Vergaser (12), der in einem Vergaserraum (13) angeordnet ist, der durch eine Zwischenwand (14) von einem Motorraum (15) getrennt ist, wobei ein Gehäuse (16) vorgesehen ist, das den Motorraum (15) wenigstens teilweise umschließt, sodass sich ein oberer Teil (11a) des Zylinders (11) in Richtung zum Gehäuse (16) hin erstreckt, wobei ferner ein Lüfterrad vorgesehen ist, durch das Luft aus dem Motorraum (15) durch eine Warmluftöffnung (17) in der Zwischenwand (14) in den Vergaserraum (13) einbringbar ist, dadurch gekennzeichnet, dass die Warmluftöffnung (17) in dem Bereich der Zwischenwand (14) angeordnet ist, der angrenzend an den oberen Teil des Zylinders (11) angeordnet ist. Power tool (100) such as a chain saw, a hand grinder, a hand circular saw, a lawn mower, a lawn trimmer or other hand tool or device for gardening and landscaping, having an internal combustion engine (10) with at least one cylinder (11) and at least one carburetor (12) ), which is arranged in a carburetor chamber (13) which is separated from an engine compartment (15) by a partition (14), a housing (16) being provided which at least partially encloses the engine compartment (15) so that a upper part (11a) of the cylinder (11) in the direction of the housing (16), a fan wheel is also provided through which air from the engine compartment (15) through a warm air opening (17) in the partition (14) into the The carburetor chamber (13) can be introduced, characterized in that the warm air opening (17) is arranged in the area of the partition (14) which is arranged adjacent to the upper part of the cylinder (11).

air cooled engine

APPARATUS OF REFRIGERATION OF MOTOR FOR MOTORCYCLE

El problema a resolver mediante la presente invención es mejorar la eficiencia de refrigeración de una bujía de encendido y su entorno en un motor de cuatro tiempos de tipo refrigerado por aire provisto de un agujero de bujía que se abre a un lado. Para ello, se ha dispuesto un agujero de bujía 63 para una cubierta de culata de cilindro 60 y una culata de cilindro 61 que constituye parte de un motor de cuatro tiempos 11 de manera que se abra en una superficie lateral izquierda de la cubierta de culata de cilindro 61, y una bujía de encendido 68 está montada en la porción profunda del agujero de bujía 63. Un depósito de combustible 6 está dispuesto sobre el motor 11, y se ha dispuesto dos envueltas 10 en los lados derecho e izquierdo del depósito de combustible 6. Una chapa de guía de aire 50 que sobresale hacia la cubierta de culata de cilindro 60 está dispuesta en una superficie interior de una porción inferior de la envuelta izquierda 10. La chapa de guía de guía de aire 50 está dispuesta ...

Internal combustion engine

The invention relates to an improved internal combustion engine having an air cooled or liquid cooled cylinder head and a piston of low thermal conductivity and low thermal expansion material and a uniform clearance between the cylinder liner and piston around the circumference, the cylinder liner being provided with fins for cooling by natural convection in order to avoid loss of heat from the combustion chamber to the coolant for increased efficiency of the engine.

Air-cooled engine

Air-cooled engine

一种通过冷却空气(Wi)进行冷却的风冷发动机(10)。所述风冷发动机(10)包括气缸体(33)和气缸盖(28)。所述气缸体(33)在气缸(26)的外周具有能够传输冷却空气(Wi)的气缸冷却通道(101，102)。所述气缸盖(28)具有能够传输冷却空气(Wi)的气缸盖冷却通道(104)。所述气缸冷却通道(101，102)和气缸盖冷却通道(104)沿垂直于气缸(26)的轴线(109)的方向延伸，并通过连接通道(105，105)彼此连通。

AIR-COOLED ENGINE

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder­-cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105).

Air-cooled engine

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder-cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105).

Cooling apparatus of engine

A cooling apparatus of an engine includes a cooling fan, a fan housing, and a shroud guiding cooling air from the fan housing to the outer circumferential surface of an engine body portion. Further, a cooling air passage passing throughout in a cylinder head from one side surface of the cylinder head to the other side surface thereof is formed in the cylinder head, and a narrowed or throttle guide portion which guides the cooling air from the interior of the fan housing to an inlet opening of the one side surface of the cooling air passage is formed in the shroud.

AIR-COOLED ENGINE

SYSTEM DEFINING A HYBRID POWER UNIT FOR THRUST GENERATION IN AN AERIAL VEHICLE AND METHOD FOR CONTROLLING THE SAME

One variation of a system for generating thrust at an aerial vehicle includes: a primary electric motor; a rotor coupled to the motor; an internal-combustion engine; a clutch interposed between the motor and an output shaft of the internal-combustion engine; an engine shroud defining a shroud inlet between the rotor and the internal-combustion engine, extending over the internal-combustion engine, and defining a shroud outlet opposite the rotor; a cooling fan coupled and configured to displace air through the engine shroud; and a local controller configured to receive a rotor speed command specifying a target rotor speed, adjust a throttle setpoint of the internal-combustion engine according to the target rotor speed and a state of charge of a battery in the aerial vehicle, and drive the primary electric motor to selectively output torque to the rotor and to regeneratively brake the rotor according to the target rotor speed.

Portable handheld work apparatus having an internal combustion engine

In an internal combustion engine ( 2 ) of a portable handheld work apparatus, the cylinder ( 3 ) is provided with cooling ribs ( 4, 4′ ). A cooling airflow is generated by the fan wheel ( 13 ) and is guided over the cooling ribs. A carburetor ( 9 ) is temperaturized as required by the heated cooling air. A control of the cooling airflow to the carburetor ( 9 ) takes place in that an opening ( 11 ), which passes the heated cooling air, is selectively closed or opened via a closure element ( 12 ). In order to obtain improved cooling of the cylinder during summer operation as well as during winter operation, the closure element ( 12 ) is provided with at least one air guide wall which extends essentially transversely to the cooling airflow and causes this cooling air to be partially backed up and deflected.

AIR COOLED ENGINE AND ENGINE-POWERED WORK TOOL

An air-cooled engine includes a cylinder provided with a plurality of cooling fins at an outer peripheral surface of the cylinder, a cooling fan, a cylinder cover covering the cylinder, an air guide plate, and an air guide portion. The air guide plate is positioned between an inner surface of the cylinder cover and the fins. The cooling fan generates cooling air stream for cooling the cylinder, and the air guide plate is configured to guide the cooling air stream to flow through a space between the inner surface of the cylinder cover and the fins. A first small space is defined between the air guide plate and the inner surface of the cylinder cover. The air guide portion covers at least a part of the first small space at an upstream side of the air guide plate in the axial direction of the drive shaft.

Dual flap active inlet cooling shroud

A cooling shroud assembly for an engine is disclosed. This cooling shroud assembly includes a shroud body. There is an inlet door or flap to an interior of this shroud body, along with an outlet door or flap from this shroud body. When installed on an engine that is incorporated by a moving vehicle (e.g., aircraft, unmanned aerial vehicle, radio-controlled aircraft, watercraft), airflow through the shroud body from an inlet to an outlet. The position of the inlet and outlet doors may be adjusted (e.g., simultaneously) to change the airflow through the shroud body, and to thereby change the dissipation of heat from the operating engine via this airflow.

Kühlungsoptimierter Zylinderkopf

Die Erfindung betrifft einen Zylinderkopf (10) zum Abdecken einer Verbrennungskammer einer Brennkraftmaschine. Ein Kühlmittelkanal (44) ist in einem Bereich (52) des Zylinderkopfes (10) zwischen zwei Gasführungskanälen (22, 24) angeordnet. Eine Außenkontur eines Strömungsquerschnitts des Kühlmittelkanals (44) ist in einer Schnittebene an eine Außenkontur eines Ventilsitzes (30, 32) des ersten und/oder zweiten Gasführungskanals (22, 24) in der Schnittebene angepasst, vorzugsweise zum Vergrößern eines Wärmeübergangs zu dem Kühlmittelkanal (44). The invention relates to a cylinder head (10) for covering a combustion chamber of an internal combustion engine. A coolant duct (44) is arranged in an area (52) of the cylinder head (10) between two gas ducts (22, 24). An outer contour of a flow cross-section of the coolant channel (44) is adapted in a sectional plane to an outer contour of a valve seat (30, 32) of the first and / or second gas guide channel (22, 24) in the sectional plane, preferably to increase the heat transfer to the coolant channel (44) ).

Luftgekühlter Motor und motorbetriebenes Arbeitswerkzeug

Luftgekühlter Motor (100), welcher umfasst: einen Motorkörper, welcher mit einem Zylinder (1), welcher einen Zylinderabschnitt (17) und eine Mehrzahl von Kühllamellen (12), welche an einer Außenumfangsfläche von dem Zylinderabschnitt bereitgestellt sind, umfasst, und einer Antriebswelle (23), welche mit einem Kühllüfter (13) bereitgestellt ist, wobei die Antriebswelle eine Achse bestimmt, welche sich in einer Axialrichtung erstreckt, bereitgestellt ist; eine Zylinderabdeckung (102), welche den Zylinder (1) abdeckt; und eine Luftleitplatte (15, 15A), welche an einem Innenraum von der Zylinderabdeckung (102) und zwischen einer Innenfläche von der Zylinderabdeckung (102) und der Mehrzahl von Lamellen (12) bereitgestellt ist, wobei der Kühllüfter dazu ausgelegt ist, einen Kühlluftstrom innerhalb der Zylinderabdeckung zum Kühlen des Zylinders (1) zu erzeugen, und wobei die Luftleitplatte dazu ausgelegt ist, den Kühlluftstrom derart zu leiten, dass er durch einen Raum zwischen der Innenfläche ...

MOTOR DE COMBUSTÃO INTERNA E VEÍCULO PARA MONTAR INCLUINDO O MESMO

MOTOR DE COMBUSTÃO INTERNA E VEÍCULO PARA MONTAR INCLUINDO O MESMO. A presente invenção fornece um novo motor resfriado a ar forçado capaz de aperfeiçoar a eficiência de combustível melhorando a eficiência de resfriamento. Um motor 10 inlcui um carter 11; um bloco de cilindro 12; um cabeçote de cilindro 13; um pistão 50; um ventilador de resfriamento 28; e uma proteção 30 possuindo uma parte de parede interna 52 e uma parte de parede externa 54. Em uma região da parte de parede externa 54 voltada para o ventilador de resfriamento 28, é formanda uma porta de sucção 31. As partes de parede interna e externa 52 e 54 formam um duto 56 se estendendo a partir da porta de sucção 31 para alcançãr pelo menos do bloco de cilindro 12 e/ou pelo menos parte do cabeçote de cilindro 13.

Portable Handheld Work Apparatus having an Internal Combustion Engine

In an internal combustion engine ( 2 ) of a portable handheld work apparatus, the cylinder ( 3 ) is provided with cooling ribs ( 4, 4′ ). A cooling airflow is generated by the fan wheel ( 13 ) and is guided over the cooling ribs. A carburetor ( 9 ) is temperaturized as required by the heated cooling air. A control of the cooling airflow to the carburetor ( 9 ) takes place in that an opening ( 11 ), which passes the heated cooling air, is selectively closed or opened via a closure element ( 12 ). In order to obtain improved cooling of the cylinder during summer operation as well as during winter operation, the closure element ( 12 ) is provided with at least one air guide wall which extends essentially transversely to the cooling airflow and causes this cooling air to be partially backed up and deflected.

Internal combustion engine and straddle-type vehicle including the same

A forced air-cooled engine includes a crankcase, a cylinder block, a cylinder head, a cooling fan, and a shroud arranged to cover a portion of the crankcase, the cooling fan, and a portion of the cylinder block and a portion of the cylinder head. Fins are provided at least in a region of the cylinder block covered by the shroud. The shroud includes a facing wall portion that faces the fins. An exhaust opening is provided between the facing wall portion and the cylinder block, and opens away from the cooling fan.

Engine apparatus

An engine apparatus includes an exhaust gas purifier configured to purify exhaust gas from an engine. The exhaust gas purifier is mounted on the engine with a longitudinal direction of the exhaust gas purifier being orthogonal to an output shaft of the engine. A cooling fan is disposed on one side surface of the engine that intersects the output shaft. The exhaust gas purifier is supported by a cylinder head at a portion on an upper surface of the engine that is closer to the cooling fan.

Engine

An engine includes a crankcase with cylinders and fins on outer circumferences of the cylinders. A crank shaft penetrates the crankcase. A cooling fan is provided on an outer side of the crankcase and arranged coaxially with the crank shaft. A first cover covers an outer side of the cylinders and the crankcase, and the cooling fan. A second cover capable of being detached from/attached to the first cover. The first cover includes a first opening facing the cooling fan, and second openings facing the fins. The second cover includes an air inlet facing the first opening, and attached to the first cover to cover the first opening and the second openings.

With improved carburetor pre-heating device of the engine drive device

Internal-combustion engine for vehicle

An internal combustion engine for a vehicle, in which a cylinder section is placed so that its axis is substantially horizontal and in which two plugs are installed on a cylinder head having an air intake port and an exhaust port of the cylinder. On the cylinder head is provided an air jacket for cooling around plug holes. In the air jacket, there is formed a main path running from a wind inlet opening to a wind outlet opening, and the main path is bent in a substantially L shape. One of the plugs is placed near the wind inlet opening and the other plug is placed near the wind outlet opening.

AIR-COOLED ENGINE

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105). © KIPO & WIPO 2008 ...

Estrutura de resfriamento de motor de combustão para uma motocicleta

Internal combustion engine and straddle-type vehicle including the same

The present invention provides a new forced air-cooled engine which improves the cooling efficiency to thereby improve the fuel economy. An internal combustion engine includes a crankcase (11), a cylinder block (12), a cylinder head (13), a piston (50), a cooling fan (28), and a shroud (30) which possesses an inner wall part (52) and an outer wall part (54). A suction port (31) is provided in a region of the outer wall portion facing the cooling fan. The inner and outer wall portions define a duct (56) extending from the suction port (31) to at least a portion of the cylinder block (12) and/or at least a portion of the cylinder head (13).

internal combustion engine to vehicle type to mount

"motor de combustão interna para veículo do tipo para montar". um motor de combustão interna (3) para veículo do tipo para montar, incluindo aletas de resfriamento (7) tendo resistência e boa aparência e fáceis de remover de um molde, inclui múltiplas aletas (7) em uma superfície lateral esquerda (34c) e uma direita (34d) de um membro constitucional do motor (34) que se estende de um cárter (30) em direção de uma linha axial cilíndrica (c). as aletas (7) se estendem em direção direita e esquerda da linha (c) e são fornecidas em direção circunferencial do membro (34), e têm formato transversal que reduz em espessura na direção de extensão. o membro (34) inclui múltiplas nervuras ortogonais (8) na superfície lateral esquerda (34c) e a direita (34d). as nervuras (8) se estendem na direção direita e esquerda da linha (c) e cruzam as aletas (7). uma parte da aleta da superfície lateral (7a) é posicionada apenas entre a nervura (8) no lado mais externo em uma direção frontal e a nervura (8) no lado mais externo em uma direção traseira. a parte da aleta da superfície lateral (7a) inclui a parte do ângulo grande (72) e pequeno (74) em um lado da extremidade base (71) e extremidade ponta (73), respectivamente. a parte do ângulo grande (72) tem um ângulo de inclinação da superfície (a) com relação ao plano (h) ortogonal à linha (c), que é maior que o ângulo (ß) no lado da extremidade da ponta (73). a parte do ângulo pequeno (74) tem o ângulo (ß) com relação ao plano (h) ortogonal à linha (c), e este ângulo é menor que o ângulo (a) no lado da extremidade base (71).

Motorised work device with improved carburettor pre-heating

The tool (100) has a combustion motor (10) provided with a cylinder (11) and a gasifier (12), which is arranged in a gasifier space (13) that is separated from a motor compartment (15) by an intermediate wall (14). A housing (16) of the tool partially encloses the compartment such that an upper part (11a) of the cylinder extends toward the housing. A fan wheel guides air from the compartment via a warm air aperture (17) in the intermediate wall into the gasifier space, where the aperture is arranged in a region of the wall adjacent to the upper part.

Engine device

Engine cooling device for motorcycle

Air-cooled engine

Internal combustion engine and straddle-type vehicle including the same

An engine includes a crankcase, a cylinder block, a cylinder head, a piston, a cooling fan, and a shroud having an inner wall portion and an outer wall portion. A suction port is provided in a region of the outer wall portion facing the cooling fan. The inner and outer wall portions define a duct extending from the suction port to reach at least a portion of the cylinder block and/or at least a portion of the cylinder head.

LUFTGEKÜHLTER MOTOR

Cooling fin structure for on-vehicle internal combustion engine

Luftgekühlter Motor

Internal combustion engine for vehicle

Cooling fin structure for on-vehicle internal comb

TWO-WHEELED VEHICLE

A two-wheeled vehicle (2) includes a frame (4) and a plurality of ground-engaging members (6, 8) for supporting the frame. An engine (12) includes an air deflector (1250) to assist in cooling a rear cylinder (1172) of a V-twin engine. An accessory windshield (1650) is also shown which may be coupled to the handlebars (28) and front forks (72) of the vehicle. Also, a rear accessory attachment is shown mountable to the rear fender.

Internal combustion engine and straddle-type vehicle including the same

Air-cooled engine generator

An air-cooled engine generator usable in an enclosed and relatively small indoor space includes an engine including a crank shaft on which a generator and a fan are provided. An outside cover includes a discharge aperture which discharges cooling air generated by the fan, and covers the engine, the generator, the fan, and a cooling section. The cooling section includes a mixing chamber where a coolant introduced from the outside and exhaust gas discharged from an exhaust pipe of the engine mix with each other, and an outer circumferential surface which is cooled by the coolant that is introduced into the mixing chamber. The exhaust gas is mixed with and cooled by the coolant in the mixing chamber while the cooling air which is supposed to be discharged out of the air-cooled engine generator is cooled by the outer circumferential surface of the cooling section.

Motor-driven implement having improved carburettor preheating apparatus

motor de combustão interna para um veìculo

COOLING STRUCTURE IN AIR-COOLED ENGINE

PROBLEM TO BE SOLVED: To provide a cooling structure of an air-cooled engine, which makes effective utilization of cooling air to thereby increase the cooling efficiency. SOLUTION: A top plate 40 extending in a direction intersecting the axial center C1 of a cylinder 10a is provided in a top portion of a cylinder block 10 of an engine E provided with a cooling fan 22. An intake side gasket 48 interposed between the cylinder block 10 and an intake unit 16 is extended upward to be brought into contact with the top plate 40 to thereby seal a gap between the top plate 40 and the intake side gasket 48. An exhaust side gasket 50 interposed between the cylinder block 10 and an exhaust unit 19 is extended upward to be brought into contact with the top plate 40 to thereby seal a gap between the top plate 40 and the exhaust side gasket 50. A cooling passage 52 for passing cooling air W from the cooling fan 22 is formed by the cylinder block 10, the top plate 40, the intake side gasket 48 and the ...

MOTOR AIR COOLED

Un motor refrigerado por aire, (10) es refrigerado por aire de refrigeracion (Wi). El motor refrigerado por aire (10) incluye un bloque de cilindro (33) y una tapa de cilindro (28). El bloque de cilindro (33) tiene ductos pasantes para refrigerar el cilindro, (101, 102), capaces de transmitir aire de refrigeracion (Wi), sobre la periferia de un cilindro (26). La tapa de cilindro (28) tiene un ducto pasante para refrigerar la tapa de cilindro, (104), capaz de transmitir aire de refrigeracion (Wi). Los ductos para refrigerar el cilindro, (101, 102), y el ducto para refrigerar la tapa de cilindro, (104), se extienden en una direccion perpendicular con respecto a la línea axial (109) del cilindro (26), y se comunican entre sí mediante canales de comunicacion (105, 105).

ENGINE FOR MOTORCYCLE, AND THE LIKE

PURPOSE: To improve a cooling effect, by installing a vertical fin in a central part in the longitudinal direction of a cylinder head of the engine set up horizontally just behind a front fender, and installing giagonal fins in other parts. CONSTITUTION: An engine 14 is horizontally set up just behind a front fender 13 of a motorcycle 10, and a cooling air passage is formed in the leg shield 20 attached to the rear of the front fender 13. A vertical fin 31b is installed in a central part in the longitudinal direction of a cylinder head of the engine 14, while another vertical fin 31a is installed in a lower part of the cylinder head 16. In addition, cooling fins 30a and 30b slanted from the front upperside to the rear downside are installed in each side of a cylinder 15 and the cylinder head 16. With this constitution, slanting cooling air smoothly flows around the cylinder and the cylinder head, thus a cooling effect is improvable. COPYRIGHT: (C)1987,JPO&Japio ...

Internal-combustion engine for vehicle

Air-cooled engine

TWO-WHEELED VEHICLE

A two-wheeled vehicle includes a frame having a front frame portion, a mid-frame portion, and a rear frame portion. The mid-frame portion is coupled to the rear frame portion and the front frame portion. The vehicle further includes a plurality of ground-engaging members for supporting the frame. The engine includes an air deflector to assist in cooling a rear cylinder of a V-twin engine. An accessory windshield is also shown which may be coupled to the handlebars and front forks of the vehicle. Also, a rear accessory attachment is shown mountable to the rear fender.

空冷エンジンの冷却構造

Engine cooling structure for motorcycle

A front fender is provided in front of an air-cooled engine which is a drive source of a motorcycle. An air introduction hole which opens frontward is formed at a front part of a cylinder head of the air-cooled engine. A space around a plug attachment portion for a spark plug and a space in front of the cylinder head communicate with each other through the air introduction hole. A guide portion for guiding incoming wind toward the air introduction hole is formed at a rear part of the front fender.

Vaporized fuel processing device

Method for improving heat dissipation effect of engine

AIR-COOLED ENGINE GENERATOR

An air-cooled engine generator usable in an enclosed and relatively small indoor space includes an engine including a crank shaft on which a generator and a fan are provided. An outside cover includes a discharge aperture which discharges cooling air generated by the fan, and covers the engine, the generator, the fan, and a cooling section. The cooling section includes a mixing chamber where a coolant introduced from the outside and exhaust gas discharged from an exhaust pipe of the engine mix with each other, and an outer circumferential surface which is cooled by the coolant that is introduced into the mixing chamber. The exhaust gas is mixed with and cooled by the coolant in the mixing chamber while the cooling air which is supposed to be discharged out of the air-cooled engine generator is cooled by the outer circumferential surface of the cooling section. 1. An air-cooled engine generator comprising:an engine including a cylinder block, a cylinder head attached to the cylinder block and including an exhaust port, an exhaust pipe connected to the exhaust port, and a crank shaft located in the cylinder block;a generator and a fan each provided on the crank shaft;a cover including a discharge aperture which discharges cooling air generated by the fan and that covers the engine, the generator, and the fan; anda cooling section including a mixing chamber that mixes a coolant introduced from outside of the air-cooled engine generator and exhaust gas discharged from the exhaust pipe, and an outer circumferential surface cooled by the coolant introduced into the mixing chamber.2. The air-cooled engine generator according to claim 1 , wherein the cooling section is covered by the cover.3. The air-cooled engine generator according to claim 2 , wherein the cooling section is located between the cylinder block and the discharge aperture claim 2 , or between the cylinder head and the discharge aperture.4. The air-cooled engine generator according to claim 1 , wherein at ...

Internal combustion engine for vehicle

Disclosed is an internal combustion engine for a vehicle, of which a cylinder block is installed in a manner that its axial line is approximately horizontal and includes a cylinder head mounted with an intake port, an exhaust port and two attached plugs. In addition, an air jacket for cooling circumferences of plug holes is installed on the cylinder head, wherein the air jacket has an L-shaped main passage starting from a traveling air introducing port to an air discharge port. One of the plugs is installed near the traveling air introducing port, while the other plug is installed near the air discharge port, respectively.

Air-cooled engine

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder- cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder- cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105).

motor de uso geral

MOTOR DE USO GERAL. A presente invenção refere-se a um motor de uso geral tendo uma função de resfriamento suficiente. Um motor de uso geral (1) é fornecido com um corpo do motor (10) tendo uma parte do sistema de escape (13) conectada a um cilindro (11), e ainda com um mecanismo de resfriamento (9) para resfriar o corpo do motor (10). O mecanismo de resfriamento (9) é fornecido com uma ventoinha de resfriamento (90) que gira para gerar um fluxo de ar de resfriamento, uma seção de descarga (92) que descarrega o fluxo de ar de resfriamento gerado pela rotação da ventoinha de resfriamento (90), e uma abertura do fluxo de ar de resfriamento (33) que é disposta na parte superior de uma divisão (32) para separar uma câmara do cilindro (30) tendo o cilindro (11) fornecido nele de uma câmara do silenciador (31) tendo um silenciador da vasilha (132) fornecido nela, conecta o lado da cabeça de cilindro (15) da câmara do cilindro (30) e o lado superior da câmara do silenciador (31), e faz com que um fluxo de ar de resfriamento flua do lado da cabeça de cilindro (15) da câmara do cilindro (30) à câmara do silenciador (31). GENERAL PURPOSE ENGINE. The present invention relates to a general purpose engine having a sufficient cooling function. A general purpose engine (1) is provided with an engine body (10) having an exhaust system part (13) connected to a cylinder (11), and further with a cooling mechanism (9) to cool the body. of the engine (10). The cooling mechanism (9) is provided with a cooling fan (90) that rotates to generate a flow of cooling air, an exhaust section (92) that discharges the flow of cooling air generated by the rotation of the cooling fan. (90), and a cooling air flow opening (33) which is disposed at the top of a partition (32) for separating a cylinder chamber (30) having the cylinder (11) provided therein from a muffler chamber (31) having a canister muffler (132) provided therein, connects the cylinder head (15) side of the cylinder chamber (30) and ...

COOLING FIN STRUCTURE FOR VEHICLE-MOUNTED INTERNAL COMBUSTION ENGINE

An internal combustion engine 10 mounted on a motorcycle has a forward-tilted or substantially horizontal cylinder and is provided on its upper surface with a cooling fin structure 31 including cooling fins 30 extending in a direction in which the motorcycle advances. Reinforcing bulges 34 are formed integrally with the cooling fins 30 on the surfaces of the cooling fins 30 such that the reinforcing bulges 34 of each cooling fin 30 are separated from the adjacent cooling fins 30 and from the reinforcing bulges 34 of the adjacent cooling fins 30. The respective reinforcing bulges 34 of the adjacent ones of the cooling fins 30 are arranged alternately. The respective reinforcing bulges 34 of the adjacent cooling fins 30 do not overlap each other when seen in a direction along the length of the cooling fins 30. Bottom walls 35 continuously extending in the running direction of the motorcycle are formed between the adjacent ones of the cooling fins 30. Sand and mud can hardly accumulate in ...

TWO-WHEELED VEHICLE

A two-wheeled vehicle includes a frame having a front frame portion, a mid-frame portion, and a rear frame portion. The mid-frame portion is coupled to the rear frame portion and the front frame portion. The vehicle further includes a plurality of ground-engaging members for supporting the frame. The engine includes an air deflector to assist in cooling a rear cylinder of a V-twin engine. An accessory windshield is also shown which may be coupled to the handlebars and front forks of the vehicle. Also, a rear accessory attachment is shown mountable to the rear fender.

Cooling structure in air-cooled combustion engine

A top plate (40) is provided in a top portion of a cylinder block (10) of a combustion engine (E) of a type, provided with a cooling fan (22), so as to lie perpendicular to a longitudinal axis (C1) of an engine cylinder (10a). An intake side gasket (48) interposed between the cylinder block (10) and an intake unit (16) is extended upwardly to contact the top plate (40) to thereby seal a gap between the top plate (40) and the intake side gasket (48). An exhaust side gasket interposed between the cylinder block (10) and an exhaust unit (19) is extended upwardly to contact the top plate to thereby seal a gap between the top plate (40) and the exhaust side gasket (50). A cooling passage (52) for passing therethrough a cooling air (W) from the cooling fan (22) is formed by the cylinder block (10), the top plate (40), the intake side gasket (48) and the exhaust side gasket (50).

TWO-WHEELED VEHICLE

A coupling system for a vehicle includes a first coupler having an outer annual surface and an opening defining an inner surface. The outer surface and the inner surface define gripping surfaces for gripping one or more alternative vehicle attachments.

Internal combustion engine and straddle-type vehicle including the same

A forced air-cooled engine includes a crankcase, a cylinder block, a cylinder head, a cooling fan, and a shroud arranged to cover a portion of the crankcase, the cooling fan, and a portion of the cylinder block and a portion of the cylinder head. Fins are provided at least in a region of the cylinder block covered by the shroud. The shroud includes a facing wall portion that faces the fins . An exhaust opening is provided between the facing wall portion and the cylinder block, and opens away from the cooling fan.

Cooling structure in air-cooled combustion engine

Air-cooled engine

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder-cooling ducts (101, 102) and the head-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105).

TWO-WHEELED VEHICLE

A vehicle includes an electrical system which has at least one control unit and a first operator input device operably coupled to the at least one control unit. Additionally, the electrical system includes a second operator input device electrically coupled to the at least one control unit. The at least one control unit being operative to power on at least the engine. Also, the electrical system includes a security input device operably coupled to the at least one control unit. The at least one control unit is configured to transmit an actuation signal to the security input device in response to actuation of the first operator input device independent of actuation of the second operator input device and in response to actuation of the second operator input device independent of actuation of the first operator input device. 1. (canceled)2. A vehicle , comprising:a frame;a plurality of ground-engaging members supporting the frame;an engine supported by the frame and operably coupled to the ground-engaging members; and at least one control unit operative to control the engine and a plurality of electrical components of the electrical system;', 'a first operator input device operably coupled to the at least one control unit, and the at least one control unit is operative to power on at least the electrical system;', 'a second operator input device electrically coupled to the at least one control unit, and the at least one control unit being operative to power on at least the engine; and', 'a security input device operably coupled to the at least one control unit, and the at least one control unit being configured to transmit an actuation signal to the security input device in response to actuation of the first operator input device independent of actuation of the second operator input device and in response to actuation of the second operator input device independent of actuation of the first operator input device., 'an electrical system including3. The vehicle of claim ...

Cooling system in air-cooled combustion engine

A top plate is provided in a top portion of a cylinder block of a combustion engine of a type, provided with a cooling fan, so as to lie perpendicular to a longitudinal axis of an engine cylinder. An intake side gasket interposed between the cylinder block and an intake unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the intake side gasket. An exhaust side gasket interposed between the cylinder block and an exhaust unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the exhaust side gasket. A cooling passage for passing therethrough a cooling air from the cooling fan is formed by the cylinder block, the top plate, the intake side gasket and the exhaust side gasket.

Cooling apparatus of engine

A cooling apparatus of an engine according to the present invention includes a cooling fan, a fan housing, and a shroud guiding cooling air from the fan housing to the outer circumferential surface of an engine body portion. Further, a cooling air passage passing throughout in a cylinder head from one side surface of the cylinder head to the other side surface thereof is formed in the cylinder head, and a narrowed or throttle guide portion which guides the cooling air from the interior of the fan housing to an inlet opening of the one side surface of the cooling air passage is formed in the shroud.

Engine

An engine includes a crankcase with cylinders and fins on outer circumferences of the cylinders. A crank shaft penetrates the crankcase. A cooling fan is provided on an outer side of the crankcase and arranged coaxially with the crank shaft. A first cover covers an outer side of the cylinders and the crankcase, and the cooling fan. A second cover capable of being detached from/attached to the first cover. The first cover includes a first opening facing the cooling fan, and second openings facing the fins. The second cover includes an air inlet facing the first opening, and attached to the first cover to cover the first opening and the second openings.

ENGINE APPARATUS

An engine apparatus includes an exhaust gas purifier configured to purify exhaust gas from an engine. The exhaust gas purifier is mounted on the engine with a longitudinal direction of the exhaust gas purifier being orthogonal to an output shaft of the engine. A cooling fan is disposed on one side surface of the engine that intersects the output shaft. The exhaust gas purifier is supported by a cylinder head at a portion on an upper surface of the engine that is closer to the cooling fan. 1. An engine apparatus comprising an exhaust gas purifier configured to purify exhaust gas from an engine and mounted on the engine with a longitudinal direction of the exhaust gas purifier being orthogonal to an output shaft of the engine ,wherein a cooling fan is disposed on one side surface of the engine that intersects the output shaft, and the exhaust gas purifier is supported by a cylinder head at a portion on an upper surface of the engine that is closer to the cooling fan.2. The engine apparatus according to claim 1 , wherein the exhaust gas purifier is located between a head cover on the cylinder head and the cooling fan.3. The engine apparatus according to claim 2 , wherein an electric wiring connector for a detection member with respect to the exhaust gas purifier is disposed on an outer peripheral portion of the exhaust gas purifier that is on a side opposite a side of the cooling fan.4. The engine apparatus according to claim 2 ,wherein the intake manifold and the exhaust manifold are separately disposed on both side surfaces of the engine along the output shaft, and a power generator is disposed on a side of the exhaust manifold of the engine whereas an EGR device is disposed on a side of the intake manifold of the engine, a coolant pump being disposed on a side of the cooling fan of the engine, andwherein the exhaust gas purifier is located in a range of an installation width of the power generator and the EGR device and above the coolant pump.5. An engine apparatus ...

Cooling system for air-cooled engines

A cooling system for an air-cooled engine includes a plurality of electric fans, a plurality of ducts, each duct configured to receive one of the plurality of electric fans, a housing, the housing configured to be coupled to the engine and to include at least one opening, each opening is configured to be coupled to receive one of the plurality of ducts to direct air from the electric fans to a plurality of target locations, a sensor, the sensor is configured to acquire sensor data regarding the operation of the engine, and a processing circuit, the processing circuit is configured to receive the sensor data from the sensor and to control operation of the plurality of electric fans in accordance with the sensor data.

VEHICLE STRUCTURE FOR MOUNTING AIR-COOLED INTERNAL COMBUSTION ENGINE

In the vehicle structure for mounting an air-cooled internal combustion engine, a crankcase is supported by a body frame in such a manner that crankcase hanger bosses on the crankcase are joined to the body frame via crankcase hanger plates. A cylinder head has left and right cylinder head hanger seating surfaces formed perpendicular to a left-right horizontal direction by cutting out right and left symmetric areas close to side edges of left and right side faces of the cylinder head along with parts of cooling fins. One ends of left and right cylinder head hanger members are fastened respectively to cylinder head hanger attaching seats on which the left and right cylinder head hanger seating surfaces of the cylinder head are formed. The other ends of the left and right cylinder head hanger members are fastened individually to the body frame. The structure is capable of using an engine body itself to improve stiffness of a body frame without use of any particular reinforcing members. 1. A vehicle structure for mounting an air-cooled internal combustion engine , in which the air-cooled internal combustion engine is mounted on a body frame of a saddle riding vehicle , the air-cooled internal combustion engine is configured such that a cylinder and a cylinder head are vertically stacked on a crankcase in this order and cooling fins are formed on an outer periphery of at least the cylinder head:wherein the crankcase has hanger bosses formed at predetermined forward and rearward positions, and the crankcase is supported by the body frame with the hanger bosses joined to the body frame via crankcase hanger members;the cylinder head has left and right cylinder head hanger seating surfaces formed to be perpendicular to a left-right horizontal direction by cutting out right and left symmetric areas of the cylinder head as well as part of the cooling fins, the right and left symmetric areas being adjacent to side edges of left and right side faces of the cylinder head;the ...

通用发动机

提供具有充分的冷却功能的通用发动机。通用发动机(1)具备：发动机主体(10)，其具有与气缸(11)连接的排气系统部件(13)；以及冷却机构(9)，其冷却发动机主体(10)，冷却机构(9)具备：冷却风扇(90)，其通过旋转来产生冷却风；吹出部(92)，其吹出因冷却风扇(90)的旋转而产生的冷却风；和冷却风流通开口部(33)，其配置在隔离壁(32)的上部，使设置有气缸(11)的气缸室(30)的气缸盖(15)侧与设置有罐式消音器(132)的消音器室(31)的上方侧连通，使冷却风从气缸室(30)的气缸盖(15)侧流通到消音器室(31)，隔离壁(32)将气缸室(30)与消音器室(31)隔开。

Air-cooled engine air ducting

本发明公开了一种风冷式发动机导风系统，包括发动机，在所述发动机的一侧设置有导风罩（1），在所述导风罩（1）中心设置有容纳离心风扇的空腔（2），在所述导风罩（1）上设置有至少两个气流通道，所述两个气流通道分别对应发动机的上部和下部。本发明具有结构设计巧妙、使用可靠、成本低廉的优点，采用它能够对冷却空气进行分流引导，对发动机的不同位置进行散热，提高了发动机的散热效果，降低了发动机的热负荷，保证了用户体验和发动机寿命。

Cooling system for small two-stroke engine

本发明提供一种用于小型二冲程发动机的冷却系统。该冷却系统主要包括导流罩总成，螺旋桨，散热片。当发动机起动时，随着发动机转速和螺旋桨转速的增加，将会在螺旋桨的发动机侧产生较大的低压区，使得导流罩总成进气口和出气口产生压差，从而增加了通过发动机冷却系统的冷却空气流量，提升小型固定翼无人机发射过程中发动机的冷却能力。该冷却系统结构简单，拆装方便，解决采用螺旋桨的小型固定翼无人机发射之前的过热和无人机飞行过程及下降时的过冷问题，使发动机零部件工作在适宜的温度，提高发动机可靠性。

Vehicle structure for mounting air-cooled internal combustion engine

In the vehicle structure for mounting an air-cooled internal combustion engine, a crankcase is supported by a body frame in such a manner that crankcase hanger bosses on the crankcase are joined to the body frame via crankcase hanger plates. A cylinder head has left and right cylinder head hanger seating surfaces formed perpendicular to a left-right horizontal direction by cutting out right and left symmetric areas close to side edges of left and right side faces of the cylinder head along with parts of cooling fins. One ends of left and right cylinder head hanger members are fastened respectively to cylinder head hanger attaching seats on which the left and right cylinder head hanger seating surfaces of the cylinder head are formed. The other ends of the left and right cylinder head hanger members are fastened individually to the body frame. The structure is capable of using an engine body itself to improve stiffness of a body frame without use of any particular reinforcing members.

Internal combustion engine

The invention relates to an improved internal combustion engine having an air cooled or liquid cooled cylinder head and a piston of low thermal conductivity and low thermal expansion material and a uniform clearance between the cylinder liner and piston around the circumference, the cylinder liner being provided with fins for cooling by natural convection in order to avoid loss of heat from the combustion chamber to the coolant for increased efficiency of the engine.

Internal combustion engine and straddle-type vehicle including the same

A forced air-cooled engine includes a crankcase, a cylinder block, a cylinder head, a cooling fan, and a shroud arranged to cover a portion of the crankcase, the cooling fan, and a portion of the cylinder block and a portion of the cylinder head. Fins are provided at least in a region of the cylinder block covered by the shroud. The shroud includes a facing wall portion that faces the fins. An exhaust opening is provided between the facing wall portion and the cylinder block, and opens away from the cooling fan.

MOTORCYCLE ENGINE COOLING APPLIANCE

QUE INCLUYE UNA ENVUELTA DISPUESTA EN UN LADO DE UN DEPOSITO DE COMBUSTIBLE EN UN MOTOR DE CUATRO TIEMPOS DEL TIPO REFRIGERADO POR AIRE, DONDE SE GUIA AIRE DE MARCHA A UNA CULATA DE CILINDRO POR UNA PORCION DE GUIA DE AIRE FORMADA EN UNA PORCION DE LA ENVUELTA, ENFRIANDO ASI EL MOTOR. CARACTERIZADA PORQUE LA CULATA DEL CILINDRO INCLUYE UN AGUJERO DE BUJIA ABIERTO EN UN LADO DE UNA CARROCERIA DE VEHICULO; UNA PORCION DE DICHA CULATA SE LEVANTA DELANTE DEL AGUJERO DE BUJIA DE MANERA QUE SOBRESALGA EN UN LADO DE LA CARROCERIA; Y, UNA CHAPA DE GUIA DE AIRE QUE SOBRESALE HACIA ADENTRO DE LA CARROCERIA HACIA UNA PORCION DE AGUJERO DEL AGUJERO DE BUJIA, QUE ESTA DISPUESTA EN UNA PORCION INFERIOR DE LA ENVUELTA EN UN LADO DEL AGUJERO DE BUJIA. ADEMAS UN LADO TRASERO DE LA CHAPA DE GUIA DE AIRE SE BASCULA DE MANERA QUE SE ELEVA GRADUALMENTE; Y, UNA PORCION DE EXTREMO TRASERO ESTA COLOCADA CERCA DE UNA PORCION SUPERIOR DEL AGUJERO INCLUDING A CASING DISPOSED ON ONE SIDE OF A FUEL TANK IN A FOUR-STROKE ENGINE OF THE AIR-COOLED TYPE, WHERE RUNNING AIR IS GUIDED TO A CYLINDER HEAD BY A PORTION OF AIR GUIDE FORMED IN A PORTION OF THE CASING , SO COOLING THE ENGINE. CHARACTERIZED BECAUSE THE CYLINDER HEAD INCLUDES AN OPEN SPARK PLUG HOLE ON ONE SIDE OF A VEHICLE BODY; A PORTION OF SAID CYLINDER HEAD IS LIFTED IN FRONT OF THE SPARK PLUG HOLE SO THAT IT PROJECTS OUT ON ONE SIDE OF THE BODY; AND, AN AIR GUIDE SHEET PROJECTING INTO THE BODY TOWARDS A HOLE PORTION OF THE SPARK PLUG HOLE, WHICH IS ARRANGED IN A LOWER PORTION OF THE HOUSING ON ONE SIDE OF THE SPARK PLUG HOLE. IN ADDITION, A REAR SIDE OF THE AIR GUIDE SHEET SWINGS IN A WAY THAT IT RAISES GRADUALLY; AND, A REAR END PORTION IS LOCATED NEAR A TOP PORTION OF THE HOLE

General-purpose engine

Provided is a general-purpose engine having a sufficient cooling function. A general-purpose engine 1 is provided with an engine body 10 having an exhaust system part 13 connected to a cylinder 11, and also with a cooling mechanism 9 for cooling the engine body 10. The cooling mechanism 9 is provided with a cooling fan 90 which rotates to generate a cooling air flow, a discharge section 92 which discharges the cooling air flow generated by the rotation of the cooling fan 90, and a cooling air flow opening 33 which is disposed in the upper part of a partition 32 for separating a cylinder chamber 30 having the cylinder 11 provided therein from a muffler chamber 31 having a canister muffler 132 provided therein, connects the cylinder head 15 side of the cylinder chamber 30 and the upper side of the muffler chamber 31, and causes a cooling air flow to flow from the cylinder head 15 side of the cylinder chamber 30 to the muffler chamber 31.

General-purpose engine

Engine device

Cooling system in air-cooled combustion engine

A top plate is provided in a top portion of a cylinder block of a combustion engine of a type, provided with a cooling fan, so as to lie perpendicular to a longitudinal axis of an engine cylinder. An intake side gasket interposed between the cylinder block and an intake unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the intake side gasket. An exhaust side gasket interposed between the cylinder block and an exhaust unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the exhaust side gasket. A cooling passage for passing therethrough a cooling air from the cooling fan is formed by the cylinder block, the top plate, the intake side gasket and the exhaust side gasket.

Cylinder cover cooling structure of engine

本发明涉及一种发动机的气缸盖冷却结构，特征是：所述进气歧管与冷却风扇安装在发动机体的同一侧，进气歧管安装在冷却风扇的上方，所述进气歧管上有一个整体式的外壳；所述外壳底部设置有面对风扇罩内部敞开的吸入口，所述进气歧管的侧部与气缸盖密封连接，所述风扇罩中央设有进气口，所述风扇罩上部设有出气口；所述敞开的吸入口与风扇罩上部的进气口相通；所述气缸盖内部设有第一冷却通道和第二冷却通道，所述第一冷却通道侧面安装有一引风板导向，以防止热空气再回流到冷却风扇的现象。本发明利用发动机零部件本身的结构特点，巧妙的安排其相对的装配位置，从而可以简化不必要的结构，实现成本的降低和效率的提高。

Motorcycle

Internal combustion engine and straddle-type vehicle including the same

An engine includes a crankcase, a cylinder block, a cylinder head, a piston, a cooling fan, and a shroud having an inner wall portion and an outer wall portion. A suction port is provided in a region of the outer wall portion facing the cooling fan. The inner and outer wall portions define a duct extending from the suction port to reach at least a portion of the cylinder block and/or at least a portion of the cylinder head.

Saddle-ride type internal combustion engine for vehicle

本发明提供一种鞍乘型车辆用内燃机，具有容易脱模、确保强度且外观性良好的散热片。在鞍乘型车辆用内燃机(3)中，内燃机结构部件在左、右侧面具有在与气缸轴线(C)正交的左右方向上延伸地与散热片(7)交叉的多个正交肋(8)，散热片具有相对于缸轴线正交面(H)的表面倾斜角度(α)较大的基端部(71)侧大角度部(72)、以及表面倾斜角度(β)较小的前端部(73)侧小角度部(74)，具有只位于前方最外侧的正交肋和后方最外侧的正交肋之间的侧面散热片部(7a)，散热片中的比前、后方最外侧的正交肋更靠外侧的前侧散热片部(7c)和后侧散热片部(7b)以单一的表面倾斜角度(γ)形成。

Internal combustion engine and straddle-type vehicle including the same

本發明提供一種可藉由冷卻效率之提高而實現燃料效率之提高之新型強制空冷式引擎。引擎10包括曲柄軸箱11、汽缸體12、汽缸頭13、活塞50、冷卻扇28、及包含內壁部52與外壁部54之護罩30。於外壁部54之與冷卻扇28對向之部分形成有吸入口31。藉由外壁部54及內壁部52而形成有自吸入口31至汽缸體12及/或汽缸頭13之至少一部分之導管56。

Digital frequency conversion generator cooling system

本发明创造公开了一种数码变频发电机冷却系统，包括壳体内腔负压冷却模块、电机风扇强制冷却模块、飞轮风扇强制冷却模块、压缩气体定向冷却模块，所述的壳体内腔负压冷却模块包括设置在壳体(6)两侧的一号和二号进风口(1)，设置在壳体(6)底部与空滤器相对应的三号进风口(7)、与发电机相对应的四号进风口(2)、与汽缸体底部(37)相对应的五号进风口(8)、与直流稳压器(17)相对应的六号进风口(3)、与逆变器平板型鳍片(14)相对应的七号进风口(5)、与逆变器突出电容(16)相对应的八号进风口(4)，在负压的作用下一号至八号进风口吸入外界冷空气冷却相对应的部件或部位。采用本结构后，具有结构紧凑、布局合理、冷却速度快、效果好、使用寿命长等优点。

辅助风冷的双冷却风道发电机

本发明公开了一种辅助风冷的双冷却风道发电机，包括箱体及位于箱体内的发电机本体和发动机，箱体包括机架和覆盖件，覆盖件与发动机以及发电机本体之间的空隙形成辅助风道，所述辅助风道的进风口设置于覆盖件；发动机设有冷却风道Ⅰ和冷却风道Ⅱ，冷却风道Ⅰ位于发动机缸头，所述冷却风道Ⅱ位于发动机曲轴箱体底部和曲轴箱盖；本发明采用两个冷却风道对发动机进行具有针对性的冷却，利用辅助风冷通道对发动机周围进行辅助散热，并增大两个冷却风道的风量，形成全面风冷结构，减少冷却风在流动中损失，提高冷却效率，并且简化整体结构，与现有的利用隔热层进行隔热相比，散热效果更好，使得发电机整体更为简单紧凑，更能发挥小型发电机灵活的优势并利于保护主体设备。

System defining a hybrid power unit for thrust generation in an aerial vehicle and method for controlling the same

One variation of a system for generating thrust at an aerial vehicle includes: a primary electric motor; a rotor coupled to the motor; an internal-combustion engine; a clutch interposed between the motor and an output shaft of the internal-combustion engine; an engine shroud defining a shroud inlet between the rotor and the internal-combustion engine, extending over the internal-combustion engine, and defining a shroud outlet opposite the rotor; a cooling fan coupled and configured to displace air through the engine shroud; and a local controller configured to receive a rotor speed command specifying a target rotor speed, adjust a throttle setpoint of the internal-combustion engine according to the target rotor speed and a state of charge of a battery in the aerial vehicle, and drive the primary electric motor to selectively output torque to the rotor and to regeneratively brake the rotor according to the target rotor speed.

Two-wheeled vehicle

A coupling system for a vehicle includes a first coupler having an outer annual surface and an opening defining an inner surface. The outer surface and the inner surface define gripping surfaces for gripping one or more alternative vehicle attachments.

무인헬리콥터용 공냉식엔진 냉각장치

본 발명은 무인헬리콥터용 공냉식엔진에 관한 것으로서, 보다 상세하게는 공냉식엔진의 실린더 헤드의 외측에 엔진작동시에 발생되는 고온의 열을 냉각시키기 위해 냉각핀과 냉각수가 순환되게 통로관을 형성한 무인헬리콥터용 공냉식엔진 냉각장치에 관한 것이다. 본 발명은 무인헬리콥터용 공냉식엔진의 냉각장치에 있어서, 공냉식엔진(10)의 몸체(11)에 양쪽으로 형성된 실린더 헤드에 외벽에 형성된 냉각핀(12)과, 상기 냉각핀(12)이 형성된 외측에 냉각수를 순환시키기 위한 통로(21)가 형성된 통로관(20)과, 상기 통로관(20)에는 냉각수가 유입되는 유입구(22)와 냉각수가 배출되는 배출구(23)가 일체로 형성된 것을 특징으로 한다. 무인헬리콥터용 공냉식엔진, 냉각수 통로관, 유입구, 배출구, 냉각장치

무인헬리콥터용 공냉식엔진 냉각장치

본 발명은 무인헬리콥터용 공냉식엔진에 관한 것으로서, 보다 상세하게는 공냉식엔진의 실린더 헤드의 외측에 엔진작동시에 발생되는 고온의 열을 냉각시키기 위해 냉각핀과 냉각수가 순환되게 통로관을 형성한 무인헬리콥터용 공냉식엔진 냉각장치에 관한 것이다. 본 발명은 무인헬리콥터용 공냉식엔진의 냉각장치에 있어서, 공냉식엔진(10)의 몸체(11)에 양쪽으로 형성된 실린더 헤드에 외벽에 형성된 냉각핀(12)과, 상기 냉각핀(12)이 형성된 외측에 냉각수를 순환시키기 위한 통로(21)가 형성된 통로관(20)과, 상기 통로관(20)에는 냉각수가 유입되는 유입구(22)와 냉각수가 배출되는 배출구(23)가 일체로 형성되고, 상기 유입구(22)는 상부 일측에 형성되고 배출구(23)는 하부 타측에 대각선 방향으로 형성된 것을 특징으로 한다. 무인헬리콥터용 공냉식엔진, 냉각수 통로관, 유입구, 배출구, 냉각장치

鞍乘型车辆用内燃机

本发明提供一种鞍乘型车辆用内燃机，能够在气缸盖中，使冷却空气有效地向火花塞座引导，有效地对火花塞进行冷却。在配置有具有使活塞滑动自如地嵌合的气缸筒且形成有面对活塞的顶部的燃烧室的气缸部，并且气缸部具有形成有气缸筒的气缸体、以及与气缸体结合并支承气门机构的气缸盖的鞍乘型车辆用内燃机中，气缸盖具有在车辆前后方向配置的、经过进气口周围和排气口周围之间的前后方向冷却空气通路，从前后方向冷却空气通路向车辆侧面方向分支出的横向冷却空气通路向火花塞座周围延伸，横向冷却空气通路具有燃烧室侧底壁和气门机构侧上壁，在火花塞座的上游侧的上壁具有向底壁突出的上壁肋。

鞍乗型車両用内燃機関

【課題】鋳抜き容易で強度が確保され外観性の良い冷却フィンを備えた鞍乗型車両用内燃機関。 【解決手段】クランクケース30からシリンダ軸線Ｃ方向に延びる内燃機関構成部材34の左右側面34ｃ,ｄにシリンダ軸線Ｃ直交左右方向に延伸し周方向に配設され、延伸方向に厚さを減じる複数の冷却フィン７を備えた鞍乗型車両用内燃機関３において、内燃機関構成部材は、左右側面にシリンダ軸線Ｃ直交左右方向に延伸して冷却フィンと交差する複数の直交リブ８を備え、冷却フィンは、シリンダ軸線直交面Ｈに対する表面傾斜角度αが大きい基端部71側の大角度部72と、表面傾斜角度βが小さい先端部73側の小角度部74とを備え、前方向最外側の直交リブと後方向最外側の直交リブとの間のみに位置する側面冷却フィン部７ａを有し、冷却フィンのうち、前、後方向最外側の直交リブより外側の前側冷却フィン部７ｃと後側冷却フィン部７ｂは単一の表面傾斜角度γで形成された。 【選択図】図４

鞍乘型车辆用内燃机

本发明提供一种鞍乘型车辆用内燃机，具有容易脱模、确保强度且外观性良好的散热片。在鞍乘型车辆用内燃机(3)中，内燃机结构部件在左、右侧面具有在与气缸轴线(C)正交的左右方向上延伸地与散热片(7)交叉的多个正交肋(8)，散热片具有相对于缸轴线正交面(H)的表面倾斜角度(α)较大的基端部(71)侧大角度部(72)、以及表面倾斜角度(β)较小的前端部(73)侧小角度部(74)，具有只位于前方最外侧的正交肋和后方最外侧的正交肋之间的侧面散热片部(7a)，散热片中的比前、后方最外侧的正交肋更靠外侧的前侧散热片部(7c)和后侧散热片部(7b)以单一的表面倾斜角度(γ)形成。

Motor de combustão interna e veículo tipo de montar

motor de combustão interna e veículo para montar incluindo o mesmo. a presente invenção fornece um novo motor resfriado a ar forçado capaz de aperfeiçoar a eficiência de combustível melhorando a eficiência de resfriamento. um motor 10 inclui um carter 11; um bloco de cilindro 12; um cabeçote de cilindro 13; um pistão 50; um ventilador de resfriamento 28; e uma proteção 30 possuindo uma parte de parede interna 52 e uma parte de parede externa 54. em uma região da parte de parede externa 54 voltada para o ventilador de resfriamento 28, é formanda uma porta de sucção 31. as partes de parede interna e externa 52 e 54 formam um duto 56 se estendendo a partir da porta de sucção 31 para alcançar pelo menos do bloco de cilindro 12 e/ou pelo menos parte do cabeçote de cilindro 13.

Motor de uso general

Se proporciona un motor de uso general que tiene una función de refrigeración suficiente. Un motor 1 de uso general está provisto de un cuerpo 10 de motor que tiene una parte 13 del sistema de escape conectada a un cilindro 11, y también con un mecanismo 9 de enfriamiento para enfriar el cuerpo 10 del motor. El mecanismo 9 de enfriamiento está provisto de un ventilador 90 de enfriamiento. que gira para generar un flujo de aire de enfriamiento, una sección de descarga 92 que descarga el flujo de aire de enfriamiento generado por la rotación del ventilador de enfriamiento 90, y una abertura de flujo de aire de enfriamiento 33 que está dispuesta en la parte superior de una partición 32 para separar un La cámara de cilindro 30 que tiene el cilindro 11 proporcionado en ella desde una cámara de silenciador 31 que tiene un silenciador de recipiente 132 proporcionado en ella, conecta el lado de la culata 15 de la cámara de cilindro 30 y el lado superior de la cámara de silenciador 31, y provoca un flujo de aire de refrigeración para fluye desde el lado de la culata 15 de la cámara del cilindro 30 a la cámara del silenciador 31. (Traducción automática con Google Translate, sin valor legal)

辅助风冷的双风道发动机总成

本发明公开了一种辅助风冷的双风道发动机总成，包括箱体及位于箱体内的发动机，箱体包括机架和覆盖件，覆盖件与发动机之间的空隙形成辅助风道，所述辅助风道的进风口设置于覆盖件；发动机设有冷却风道Ⅰ和冷却风道Ⅱ，冷却风道Ⅰ位于发动机缸头，冷却风道Ⅱ位于发动机曲轴箱体底部和曲轴箱盖；本发明采用两个冷却风道对发动机进行具有针对性的冷却，利用辅助风冷通道对发动机周围进行辅助散热，并增大两个冷却风道的风量，形成全面风冷结构，减少冷却风在流动中损失，提高冷却效率，并且简化整体结构，与现有的利用隔热层进行隔热相比，散热效果更好，使得发电机整体更为简单紧凑，更能发挥小型发电机灵活的优势并利于保护主体设备。

双冷却风道发电机

本发明公开了一种双冷却风道发电机，发电机设有冷却风道，冷却风道至少包括冷却风道Ⅰ和冷却风道Ⅱ，冷却风道Ⅰ位于发动机缸头，所述冷却风道Ⅱ位于发动机箱体底部和箱盖；本发明采用两个冷却风道对发动机进行具有针对性的冷却，减少冷却风在流动中损失，提高冷却效率，并且简化整体结构，与现有的采用风冷并结合隔热层的结构相比，使得发电机整体更为简单紧凑，散热效果更好，更能发挥小型发电机灵活的优势，并利于保护主体设备。

자동차용 엔진의 열해방지 구조

본 발명은 자동차용 엔진의 열해방지 구조에 관한 것으로서, 엔진 본체 및 흡,배기 매니폴드 등의 열원으로부터 열해의 우려가 있는 엔진 후방의 각종 부품들의 온도를 엔진 전방의 냉각팬에서 발생하는 냉풍을 통해 저감시킬 수 있도록 엔진의 레더프레임 하단 또는 언더커버에 에어가이드 수단을 설치함으로써, 엔진 전체의 열을 식혀주어 열차단 성능을 획기적으로 향상시킬 수 있는 자동차용 엔진의 열해방지 구조에 관한 것이다. 이와 같은 목적을 실현하기 위하여 본 발명은 냉각팬으로부터의 냉풍을 용이하게 수집할 수 있도록 'U'자형으로 라운드된 형태의 단면구조를 이루고 있으며, 그 끝단부의 일정구간은 수집된 냉풍이 엔진의 상방으로 유도될 수 있도록 일정 각도 라운드되어 경사진 판형 구조이거나, 언더커버 상에 고정된 베이스부를 두고 엔진의 상방으로 냉풍을 유도할 수 있도록 형성된 경사부와, 상기 경사부를 따라 흐르는 냉풍을 용이하게 수집할 수 있도록 형성된 테두리부로 이루어진 에어가이드 수단으로 구성된 것을 특징으로 한다. 자동차, 엔진, 열해방지 구조, 레더프레임, 언더커버, 에어가이드

Motor de combustão interna para veículo do tipo para montar

"motor de combustão interna para veículo do tipo para montar". a presente invenção refere-se a um motor de combustão interna (3) para um veículo do tipo para montar, tendo uma cabeça de cilindro que eficientemente guia o ar de resfriamento em direção a um assento da vela de ignição para eficientemente resfriar uma vela de ignição. um motor (3) inclui um cilindro (32) tendo um furo cilíndrico (33a), ao qual um pistão (45) é deslizavelmente encaixado, e formando uma câmara de combustão (36), para a qual uma parte superior do pistão (45) fica voltada. o cilindro (32) tem um bloco de cilindro (33) que forma o furo cilíndrico (33a) e tem uma cabeça de cilindro (34) que é unida ao bloco (33) e que suporta um mecanismo da válvula (6). a cabeça de cilindro (34) tem uma passagem de ar de resfriamento longitudinal (9) que passa entre um circundante de uma porta de admissão (37) e um circundante de uma porta de escape (38) que são dispostos em uma direção longitudinal do veículo. uma passagem de ar de resfriamento lateral (9c) é ramificada da passagem de ar de resfriamento longitudinal (9) em uma direção lateral do veículo e se estende a um circundante de um assento da vela de ignição (39a). a passagem de ar de resfriamento lateral (9c) inclui uma parede inferior (36a) em um lado da câmara de combustão (36) e uma parede superior (60b) no lado do mecanismo da válvula (6). a parede superior (60b) em um lado a montante do assento da vela de ignição (39a) tem uma nervura da parede superior (92) que projeta em direção à parede inferior (36a).

System defining a hybrid power unit for thrust generation in an aerial vehicle and method for controlling the same

One variation of a system for generating thrust at an aerial vehicle includes: a primary electric motor; a rotor coupled to the motor; an internal-combustion engine; a clutch interposed between the motor and an output shaft of the internal-combustion engine; an engine shroud defining a shroud inlet between the rotor and the internal-combustion engine, extending over the internal-combustion engine, and defining a shroud outlet opposite the rotor; a cooling fan coupled and configured to displace air through the engine shroud; and a local controller configured to receive a rotor speed command specifying a target rotor speed, adjust a throttle setpoint of the internal-combustion engine according to the target rotor speed and a state of charge of a battery in the aerial vehicle, and drive the primary electric motor to selectively output torque to the rotor and to regeneratively brake the rotor according to the target rotor speed.

veículo do tipo para montar

fornecer um veículo do tipo para montar no qual a ampliação de uma unidade de força no tamanho pode ser evitada, e o movimento de chicotes conectados a uma máquina elétrica rotativa pode ser restrito. um veículo do tipo para montar inclui: uma estrutura de corpo (12a); membro de conexão (33) que é conectado à estrutura de corpo (12) e sustenta uma haste oscilante (26) que se estende em paralelo a um eixo de uma roda traseira; uma unidade de força do tipo oscilante (27) que tem um cárter (53) integralmente formado com um corpo de rolamento (83) conectado de forma giratória à haste oscilante (26) acima de um eixo geométrico rotacional (rx) de um virabrequim (52), a unidade de força (27) que oscila em relação à estrutura de corpo (12); uma máquina elétrica rotativa (65) que está disposta em uma câmara de gerador (69) parcialmente particionada por um cárter (53), embora separada de uma câmara de manivela, gera potência elétrica de acordo com a rotação do virabrequim (52), e aciona o virabrequim (52) de acordo com o fornecimento de uma corrente elétrica; e chicotes (47 e 49) que são conectados à máquina elétrica rotativa (65) e conduzidos de um lado dianteiro do corpo de rolamento (83) para fora do cárter (53).

Saddle type vehicle

摩托车发动机二次补气系统

本发明公开了一种摩托车发动机二次补气系统，包括缸头、缸盖和形成于缸盖和缸头内部并与发动机的排气道连通的补气通道，还包括用于控制补气通道进气的补气阀，补气阀设置于缸盖上；将补气阀安装设置在缸盖上，通过形成于缸盖和缸头内部的补气通道向发动机排气道内补气，不但可保证补气顺畅，而且补气阀距排气道有一定距离，排气道处产生的高温和高压对补气阀的影响大大降低，从而延长补气阀的使用寿命；而且整体结构紧凑，经补气通道内进入的新鲜空气可自内部流经缸盖和缸头，对缸头和缸盖具有冷却效果。

辅助风冷的双冷却风道发电机

本发明公开了一种辅助风冷的双冷却风道发电机，包括箱体及位于箱体内的发电机本体和发动机，箱体包括机架和覆盖件，覆盖件与发动机以及发电机本体之间的空隙形成辅助风道，所述辅助风道的进风口设置于覆盖件；发动机设有冷却风道Ⅰ和冷却风道Ⅱ，冷却风道Ⅰ位于发动机缸头，所述冷却风道Ⅱ位于发动机曲轴箱体底部和曲轴箱盖；本发明采用两个冷却风道对发动机进行具有针对性的冷却，利用辅助风冷通道对发动机周围进行辅助散热，并增大两个冷却风道的风量，形成全面风冷结构，减少冷却风在流动中损失，提高冷却效率，并且简化整体结构，与现有的利用隔热层进行隔热相比，散热效果更好，使得发电机整体更为简单紧凑，更能发挥小型发电机灵活的优势并利于保护主体设备。

エンジン

エンジン（１０）のクランクケース（１２）には、外周にフィン（９４，９６）を有するシリンダ（１４，１６）が設けられる。クランク軸（２０）はクランクケース（１２）を貫通する。クランクケース（１２）の外方においてクランク軸（２０）と同軸上に冷却ファン（２２）が設けられる。シリンダ（１４，１６）、クランクケース（１２）の外方および冷却ファン（２２）を覆うように第１カバー（２６）が設けられ、第１カバー（２６）に着脱可能に第２カバー（２８）が設けられる。第１カバー（２６）は、冷却ファン（２２）に臨む位置に設けられる第１開口部（１９８）と、フィン（９４，９６）に臨む位置に設けられる第２開口部（２００，２０２）とを含む。第２カバー（２８）は、第１開口部（１９８）に臨む位置に設けられる吸気口（３０）を含み、第１開口部（１９８）と第２開口部（２００，２０２）とを覆うように第１カバー（２６）に取り付けられる。

一种多风道发电机总成

本发明属于发电机技术领域，特指一种多风道发电机总成；拉盘将新鲜空气吸入，第一风扇将新鲜空气引入导风罩内并分流成两路，其中一路通过缸头冷却通道对缸头进行冷却，再对消声器进行冷却形成第一冷却风道；另一路经引风通道对箱体、机油进行冷却，再由第二风扇从侧盖上的第二风道吸入对消声器进行冷却形成第二冷却风道；缸头下方的空气经第二风扇从第三风道吸入对消声器进行冷却形成第三冷却风道；箱体外侧的空气经第二风扇强制吸入，冷却箱体、机油，再从侧盖上的第一风道依次对侧盖及消声器进行冷却后向外界排出形成第四冷却风道；本发明的四条冷却风道实现了对发电机总成上各部件及机油的冷却。

空冷エンジン、エンジン作業機

【課題】導風板をシリンダカバーの内部に設けた構成において、シリンダの冷却効率を充分に高める。 【解決手段】導風板１５をフィン１２に近接させた場合には、導風板１５の右側とその右側において近接するシリンダカバー１０２の内面との間の隙間（第１の小隙間Ｓ１）が広くなる。冷却風ＣＡ２の一部はこの第１の小隙間Ｓ１を流れ、この第１の小隙間Ｓ１を流れる冷却風ＣＡ２は、シリンダ１の冷却には寄与しない。このため、上流側（前方側）から見て第１の小隙間Ｓ１を塞ぐように、シリンダカバー１０２側からシリンダ１側に延在するように、導風部材１６Ａが設けられている。 【選択図】図５

二輪自動車

二輪自動車（２）は、フレーム（４）と、フレームを支持するための複数の地面係合部材（６、８）とを含む。エンジン（１２）は、Ｖ型２気筒エンジンの後方シリンダ（１１７２）を冷却するのを補助するエアディフレクタ（１２５０）を含む。ハンドルバー（２８）および自動車のフロントフォーク（７２）に結合することができる、付属の風防（１６５０）も図示されている。また、リアフェンダーに取り付け可能な付属のリアアタッチメントも図示されている。

车辆和操作用于车辆的巡航控制组件的方法

本发明涉及车辆和操作用于车辆的巡航控制组件的方法。根据本发明的一方面，提供一种车辆，包括：车架；支承车架的多个地面接合构件；联接至地面接合构件中的至少一个地面接合构件的动力传动系组件；转向组件，转向组件联接至地面接合构件中的一个地面接合构件；以及巡航控制组件，巡航控制组件以可操作的方式联接至动力传动系组件，巡航控制组件包括配置成调节车辆速度的速度输入端和以可操作的方式联接至速度输入端并且配置成接合恒定车辆速度模式的接合输入端，并且恒定车辆速度模式配置成基于速度输入端的启用时间与第一预定时间段的比较而断开。

车辆和控制车辆的把手的温度的方法

本发明涉及车辆和控制车辆的把手的温度的方法。根据本发明的一方面，提供一种车辆，包括：车架；支承车架的前地面接合构件和后地面接合构件；传动地联接至前地面接合构件和后地面接合构件中的一者的动力传动系；转向组件，转向组件联接至前地面接合构件以用于使车辆转向，转向组件包括车把，车把具有用于操作者的手的把手；温度传感器；至少一个可编程控制器，至少一个可编程控制器配置成从温度传感器接收反馈；以及位于每个把手中或位于车把内的加热器，加热器以可操作的方式联接至至少一个可编程控制器并且从温度传感器接收关于环境温度和车辆速度的反馈以控制加热器的运行。

一种用于小型二冲程发动机的冷却系统

本发明提供一种用于小型二冲程发动机的冷却系统。该冷却系统主要包括导流罩总成，螺旋桨，散热片。当发动机起动时，随着发动机转速和螺旋桨转速的增加，将会在螺旋桨的发动机侧产生较大的低压区，使得导流罩总成进气口和出气口产生压差，从而增加了通过发动机冷却系统的冷却空气流量，提升小型固定翼无人机发射过程中发动机的冷却能力。该冷却系统结构简单，拆装方便，解决采用螺旋桨的小型固定翼无人机发射之前的过热和无人机飞行过程及下降时的过冷问题，使发动机零部件工作在适宜的温度，提高发动机可靠性。

一种防爆柴油机的气缸盖

本发明公开了一种防爆柴油机的气缸盖，包括缸盖主体、风扇、电机和开关，所述缸盖主体顶端中间位置处的两侧皆通过螺栓固定有固定座，且固定座的顶端固定有固定框，所述固定框的内部设置有风扇，且风扇的顶端贯穿固定框的顶端并延伸至固定框的外部，所述风扇的顶端通过轴承与电机的输出轴活动连接，所述电机固定在电机箱的内部，所述电机箱的底端固定在固定框的顶端，所述电机箱的左侧设置有开关，所述风扇底端的缸盖主体内部皆对称设置有进风口，且进风口的底端皆设置有通风道。本发明风扇工作产生的冷空气通过进风口进入通风道的内部，冷气与缸盖主体的内部进行冷热交换，实现对装置的冷却操作，提高了装置的使用寿命和实用性。

System defining a hybrid power unit for thrust generation in an aerial vehicle and method for controlling the same

鞍乘型车辆用内燃机

本发明提供一种鞍乘型车辆用内燃机，具有容易脱模、确保强度且外观性良好的散热片。在鞍乘型车辆用内燃机(3)中，内燃机结构部件在左、右侧面具有在与气缸轴线(C)正交的左右方向上延伸地与散热片(7)交叉的多个正交肋(8)，散热片具有相对于缸轴线正交面(H)的表面倾斜角度(α)较大的基端部(71)侧大角度部(72)、以及表面倾斜角度(β)较小的前端部(73)侧小角度部(74)，具有只位于前方最外侧的正交肋和后方最外侧的正交肋之间的侧面散热片部(7a)，散热片中的比前、后方最外侧的正交肋更靠外侧的前侧散热片部(7c)和后侧散热片部(7b)以单一的表面倾斜角度(γ)形成。

鞍乘型车辆用内燃机

本发明提供一种鞍乘型车辆用内燃机，能够在气缸盖中，使冷却空气有效地向火花塞座引导，有效地对火花塞进行冷却。在配置有具有使活塞滑动自如地嵌合的气缸筒且形成有面对活塞的顶部的燃烧室的气缸部，并且气缸部具有形成有气缸筒的气缸体、以及与气缸体结合并支承气门机构的气缸盖的鞍乘型车辆用内燃机中，气缸盖具有在车辆前后方向配置的、经过进气口周围和排气口周围之间的前后方向冷却空气通路，从前后方向冷却空气通路向车辆侧面方向分支出的横向冷却空气通路向火花塞座周围延伸，横向冷却空气通路具有燃烧室侧底壁和气门机构侧上壁，在火花塞座的上游侧的上壁具有向底壁突出的上壁肋。

一种多风道发电机总成

本发明属于发电机技术领域，特指一种多风道发电机总成；拉盘将新鲜空气吸入，第一风扇将新鲜空气引入导风罩内并分流成两路，其中一路通过缸头冷却通道对缸头进行冷却，再对消声器进行冷却形成第一冷却风道；另一路经引风通道对箱体、机油进行冷却，再由第二风扇从侧盖上的第二风道吸入对消声器进行冷却形成第二冷却风道；缸头下方的空气经第二风扇从第三风道吸入对消声器进行冷却形成第三冷却风道；箱体外侧的空气经第二风扇强制吸入，冷却箱体、机油，再从侧盖上的第一风道依次对侧盖及消声器进行冷却后向外界排出形成第四冷却风道；本发明的四条冷却风道实现了对发电机总成上各部件及机油的冷却。

空冷发动机发电机

本发明提供即使在周围被包围的比较狭窄的室内也能够使用的空冷发动机发电机。空冷发动机发电机(10)包括发动机(36)。在发动机(36)的曲轴(60)上设置发电机(38)及风扇(40)。外侧罩(12)包括排出通过风扇(40)产生的冷却风的排出口(22)，并覆盖发动机(36)、发电机(38)、风扇(40)及冷却部(46)。冷却部(46)包括混合从外部吸入的冷却液和从发动机(36)的排气管(56)排出的排气的混合室(116)、及通过吸入混合室(116)的冷却液进行冷却的外周面(118)。排气在混合室(116)内与冷却液混合而被冷却，应排出到空冷发动机发电机(10)外的冷却风通过冷却部(46)的外周面(118)变凉。

通用发动机

提供具有充分的冷却功能的通用发动机。通用发动机(1)具备：发动机主体(10)，其具有与气缸(11)连接的排气系统部件(13)；以及冷却机构(9)，其冷却发动机主体(10)，冷却机构(9)具备：冷却风扇(90)，其通过旋转来产生冷却风；吹出部(92)，其吹出因冷却风扇(90)的旋转而产生的冷却风；和冷却风流通开口部(33)，其配置在隔离壁(32)的上部，使设置有气缸(11)的气缸室(30)的气缸盖(15)侧与设置有罐式消音器(132)的消音器室(31)的上方侧连通，使冷却风从气缸室(30)的气缸盖(15)侧流通到消音器室(31)，隔离壁(32)将气缸室(30)与消音器室(31)隔开。

一种风冷式发动机导风系统

本发明公开了一种风冷式发动机导风系统，包括发动机，在所述发动机的一侧设置有导风罩（1），在所述导风罩（1）中心设置有容纳离心风扇的空腔（2），在所述导风罩（1）上设置有至少两个气流通道，所述两个气流通道分别对应发动机的上部和下部。本发明具有结构设计巧妙、使用可靠、成本低廉的优点，采用它能够对冷却空气进行分流引导，对发动机的不同位置进行散热，提高了发动机的散热效果，降低了发动机的热负荷，保证了用户体验和发动机寿命。

风冷发电机组

本发明涉及一种风冷发电机组，它包括机架、发电机以及发动机，所述机架上设有用于容置发动机的前腔室以及用于容置发电机的后腔室；所述前腔室内设有与外界连通的集气罩A，所述集气罩A设于发动机风扇的进风口处；发动机风扇的出风口处设有用于冷却发动机缸头和缸套的风冷通道A以及用于冷却冷却器的风冷通道B；风冷通道A和风冷通道B的出风口与外界连通。本发明的目的在于提供一种低噪音且冷却效果佳的风冷发电机组。本发明的优点在于：本发明设置两个独立腔室将发电机和发动机分隔开，通过风冷通道A和风冷通道B对发动机的主要发热结构进行冷却，并将消声器设置在风冷通道A和风冷通道B的出风口处，降噪的同时又达到冷却消声器的效果。

跨骑型车辆

本发明提供一种能够避免动力单元的大型化、同时抑制与旋转电机连接的线束的运动的跨骑型车辆。跨骑型车辆具备：连结部件(33)，其与车身框架(12)连结，支承与后轮的车轴平行地延伸的摆动轴(26)；摇摆式动力单元(27)，其在曲轴箱(53)一体地形成有轴承体(83)，该轴承体在比曲轴(52)的旋转轴线(Rx)靠上方的位置处旋转自由地与摆动轴连结，该摇摆式动力单元相对于车身框架摆动；旋转电机(65)，其配置于发电机室(69)内，该发电机室与曲柄室隔开并且局部被曲轴箱分隔，该旋转电机与曲轴的旋转相应地发电，并且与电流的供给相应地驱动曲轴；以及线束(47、49)，其与旋转电机连接，从轴承体的前方向曲轴箱的外侧引出。

一种发动机冷却装置

本发明揭示的一种发动机冷却装置，包括缸盖、缸体、曲轴和散热片，缸盖固定于缸体顶部，缸盖侧壁和缸体上部侧壁均环绕树立有层叠山脊状的散热片，曲轴装设于缸体内部，还包括冷却风扇、导流罩、进风口和出风口，曲轴一端贯穿缸体延伸至外部并连接冷却风扇，导流罩固定罩合于缸盖和缸体外部，导流罩对应冷却风扇位置开设有进风口，进风口相对面开设有出风口，出风口开设于导流罩上部，出风口正对散热片开设；通过设置曲轴一端贯穿缸体延伸至外部并连接冷却风扇，取消了额外的外部电机装置，节约了成本，而且无需改变发动机结构因为取得了更广泛的适用范围，同时也能保证冷却的效果不受影响。

Cooling system for air-cooled engines

A cooling system for an air-cooled engine includes a plurality of electric fans, a plurality of ducts, each duct configured to receive one of the plurality of electric fans, a housing, the housing configured to be coupled to the engine and to include at least one opening, each opening is configured to be coupled to receive one of the plurality of ducts to direct air from the electric fans to a plurality of target locations, a sensor, the sensor is configured to acquire sensor data regarding the operation of the engine, and a processing circuit, the processing circuit is configured to receive the sensor data from the sensor and to control operation of the plurality of electric fans in accordance with the sensor data.

一种防爆柴油机的气缸盖

本发明公开了一种防爆柴油机的气缸盖，包括缸盖主体、风扇、电机和开关，所述缸盖主体顶端中间位置处的两侧皆通过螺栓固定有固定座，且固定座的顶端固定有固定框，所述固定框的内部设置有风扇，且风扇的顶端贯穿固定框的顶端并延伸至固定框的外部，所述风扇的顶端通过轴承与电机的输出轴活动连接，所述电机固定在电机箱的内部，所述电机箱的底端固定在固定框的顶端，所述电机箱的左侧设置有开关，所述风扇底端的缸盖主体内部皆对称设置有进风口，且进风口的底端皆设置有通风道。本发明风扇工作产生的冷空气通过进风口进入通风道的内部，冷气与缸盖主体的内部进行冷热交换，实现对装置的冷却操作，提高了装置的使用寿命和实用性。

Two-wheeled vehicle

A two-wheeled vehicle includes a frame having a front frame portion, a mid-frame portion, and a rear frame portion. The mid-frame portion is coupled to the rear frame portion and the front frame portion. The vehicle further includes a plurality of ground-engaging members for supporting the frame. The engine includes an air deflector to assist in cooling a rear cylinder of a V-twin engine. An accessory windshield is also shown which may be coupled to the handlebars and front forks of the vehicle. Also, a rear accessory attachment is shown mountable to the rear fender.