An improved throttle body structure is provided. The structure includes a throttle body. The throttle body is provided with a plurality of airflow channels running from top to bottom, each of the airflow channels is internally provided with a butterfly valve for controlling a ventilation volume…
A throttle body may have a main bore for supplying a fuel and air mixture to an engine. A throttle valve head may be received in the main bore and movable between idle and wide open positions to control fluid flow through the main bore. A main fuel outlet and a boost venturi may open to the main…
A throttle valve (112) includes a conduit (114), a first flap (116), and a second flap (118). The first flap (116) and the second flap (118) are laterally disposed within the conduit (114) and adjacently located to each other. The first flap (116) is positioned rotatable about a first axis (C-C')…
A throttle valve (112) includes a conduit (114), a first flap (116), and a second flap (118). The first flap (116) and the second flap (118) are laterally disposed within the conduit (114) and adjacently located to each other. The first flap (116) is positioned rotatable about a first axis (C-C')…
The flap device (1) has a housing (2), in which a channel is formed. A fluid is flowable through the channel, where a flap body (4) is arranged in the channel. A bearing portion (9) has two bearing elements (16,17) and a connecting element (18), and is connected with a flap shaft (6) through the…
The flap valve (1) has a flap housing (2) with a fluid channel section, where the fluid channel section has an inlet zone, a control zone and a discharge zone. A flap (4) is provided with a rectangular shape, at whose ends semi-circles are adjoined. The inlet zone is arranged opposite to the…
A throttle valve for adjusting an amount of intake air to an internal combustion engine includes throttle shafts (32, 33; 73 - 75) disposed in an intake air passage (13) perpendicularly across the longitudinal axis of the air passage, and first and second valve members mounted on the throttle…
The switched flap valve has a valve flap (10) positioned in the engine air intake channel (12) and operated by a switching shaft (14), with a sealing gap between the peripheral edge of the valve flap and the wall of the air intake channel. The latter peripheral edge has an extension (22) parallel…
An intake air controller for an internal combustion engine is provided. The intake air controller comprises a throttle valve controlling a flow amount of intake air flowing into the internal combustion engine; a shaft integrated with said throttle valve and rotating therewith; a bearing rotatably…
Efforts have been made in recent years to provide lightweight, low-cost throttle bodies by forming throttle bodies of resins. The bore of a throttle body must be formed so that the gap between the bore of the throttle body and a throttle valve placed in the bore is in the range of 80 to 100 mu m…
To improve the efficiency of assembling multiple on-off valves into a manifold body and reduce resistance to rotation of a shaft after assembly, frame members (3) are fitted in downstream end portions of individual intake passage sections (12) of a manifold body (2), on-off valves (4) are placed…
An opening end of a concave portion (20) of a bearing holder (16) is crimped to prevent an outer race (23) of a ball bearing (7) from sliding rearwardly, so that a bearing stop cover in the prior art is not needed to stop the slide-out of the outer race (23). Thus, the number of parts and…