Abstract: A low pressure valve for controlling exhaust gas recirculation in an internal combustion engine for a vehicle includes a housing, which contains a channel section for exhaust gas guidance, and a valve element disposed in the housing to control the exhaust gas passage in the channel section. An actuating drive is mounted on the housing and adjusts the valve element. The actuating drive is formed of an electromagnetic rotary actuator with a drive shaft thereof. The drive shaft is routed in an extended manner out of a rotary actuator housing and is in the form of an actuating shaft. The actuating shaft extends continuously to the housing and protrudes into the housing transversely to the flow direction, engages therein at the valve element in a non-rotatable manner and can be rotationally adjusted about the axis to actuate the valve element.

Abstract: The invention relates to an exhaust gas control valve with a first valve part (14) and a second valve part (44), which rest on one another with one side (17, 46), the valve parts (14, 44) in each case having passages (14, 45) and being rotatable relative to one another between an open position permitting the passage of exhaust gases and a closed position, blocking this passage. Webs (21 to 23), which protrude on one axial side of the first valve part (14), surround the openings (15) and, with their free narrow surfaces, form supporting surfaces for the second valve part (44), which is constructed flat on its side (46) facing the first valve part (14) and essentially rests with this surface on the narrow surfaces of the webs (21 to 23) and slides during the relative rotational adjustment, extend along the boundary edges (18 to 20), surrounding the passages (15, 45) of the first valve part (14).

Abstract: A corrugated tube consists of a one-piece metallic basic body with corrugations arranged concentrically about the tube axis and one behind the other, which corrugations each have an annular space in the radial zone between the corrugation trough and the corrugation apex. This annular space is closed at its interior by means of two mutually concentric annular wall parts which are seated on one another and are relatively slideable one within the other in the axial direction. On the axial side remote from the associated corrugation the annular wall parts adjoin a radial annular space which is opened towards the tube interior and dimensioned as narrowly as possible as regards its radial and axial width.