A throttle valve device (1) for an internal combustion engine (8) is proposed, comprising a housing (3) and an intake pipe (7) having a flow cross-section and a throttle valve (6) pivotable relative to the flow cross-section, which can be actuated by means of a throttle valve shaft (5) and with an…

An intake assembly (100) for an internal-combustion engine (2) comprises one intake duct (104) for each cylinder (CY), which communicates with an airbox (106) that comprises, inside it, a filtering element (114). Each intake duct (104) communicates with the airbox (106) by means of a respective…

An intake assembly (100) for an internal-combustion engine (2) comprising a plurality of cylinders (CY), wherein the intake assembly comprises an intake duct (104) for each cylinder (CY) of the internal-combustion engine and an airbox (106) defining a volume with which each intake duct (104) is in…

A bypass air volume control system for a throttle body includes a throttle body provided with: a valve-body guide hole into which a valve body is slidably fitted and into which atmospheric air is introduced; a flat surface formed by opening one end of the valve-body guide hole; and an air control…

An Exhaust Gas Recirculation (EGR) apparatus for recirculating engine exhaust gas comprising a valve member (12) disposed in an exhaust gas recirculation passage (16) of an engine, the valve member (12) movable between an open position and a closed position to control the flow of the exhaust gas…

In an air intake control device for an engine in which a throttle body (1) having an air intake path (7) is provided with a bypass (30) communicating with the air intake path (7) while bypassing a throttle valve (8), and the bypass (30) is provided with valve means (31) for opening and closing the…

The exhaust gas recirculation system (14) has an exhaust gas recirculation valve (24) arranged in an exhaust gas recirculation line (16) between an exhaust gas line (18) and a fresh gas line (20). The exhaust gas recirculation valve is provided as an exhaust gas recirculation module (22) having a…

An air supply unit (1) for an internal combustion engine; the air supply unit (1) is provided a number of butterfly valves (3) and a distributor device (6), the latter being provided, for each butterfly valve (3), with a distribution duct (10) capable of placing an internal duct (4) of said…

An exhaust gas recirculation control device (1) has a valve housing (10) formed with a gas passage (10a) inside, a butterfly valve (20) capable of opening and closing the gas passage (10a) and a driving motor (60) for driving a valve shaft (21) of the butterfly valve (20) to rotate. A valve member…

In a bypass intake control system in which a bypass (30) extending around a throttle valve (21) is connected to an intake passage (17a) in a throttle body (17), and an actuator (39) for operating a bypass valve (35) for opening and closing the bypass (30) is connected to the bypass valve (35), an…

In a bypass intake control system, a bypass valve (5) is formed from a valve housing (6) having a valve hole (10), an inlet port (11) connecting to the upstream side of a bypass (4) and an outlet port (12) connecting to the downstream side of the bypass (4), and a valve piston (13) fitted in the…