In the technical field of wastegate valves comprising a functional assembly of a body member (20) and an actuable member (30), measures are proposed to limit axial wear of the body member (20) and the actuable member (30) on each other as a result of engine vibration and pulsation. One of the measures involves a design of the wastegate valve in which at least one of surfaces (24, 33) of the body member (20) and the actuable member (30) facing each other in an axial direction (A) of the wastegate valve is provided with at least one elevated portion (26, 35) delimited by at least one recessed portion (27, 36) in at least a tangential direction (T) about the axial direction (A). In this way, one or more spaces for receiving tiny wear particles from the interface between the body member (20) and the actuable member (30) are obtained.

A heat recovery device extends between an inlet and an outlet for exhaust gas, and includes a valve delimiting a direct passage for gas between the inlet and the outlet. The valve comprises a valve body housing a gate movable between a closing off position and a released position. A heat exchanger has an exchanger inlet upstream of the gate and an exchanger outlet downstream of the gate. The valve comprises a tube partially extending inside the valve body up to a mouth edge at a distal end, with the mouth edge extending in a plane. The gate has a plane contact surface configured to come in a direct contact with the mouth edge when the gate is in the closing off position.

The present disclosure discloses a magnetic floor drain, comprising a floor drain body and a sealing cover. A straight-through water outlet is provided at a lower part of the floor drain body. A locating surface is provided at one side of the water outlet. At least one fixed magnetic block is provided on the locating surface and all the fixed magnetic blocks are provided in an interval arrangement. One side of the sealing cover is connected flexibly to the locating surface through a hinge structure. At the same time, a movable magnetic block is provided at the hinged side of the sealing cover. Centers of the fixed magnetic block and the movable magnetic block are both located on the axis of the hinge structure. The present disclosure provides an adjustable draining which is simple and useful, convenient to assemble and few accessories needed.

A valve for control of fluid flow in a fire protection system, having a body forming a fluid path between an inlet and an outlet connected via a seat, and a clapper with a bottom sealing surface and a top with a latch abutment portion. The valve further comprises an arm coupled to the valve body about a hinge point and having a closure end with an optional roller or ball. The arm is movable to engage the clapper and maintain the clapper closed, or to disengage and allow the clapper to open. The arm is disposed such that the opening force on the clapper is transferred primarily directly to the body, providing large closing force against the clapper, requires relatively small force to dislodge the arm, and in many embodiments substantially isolates the closing force from the force required to dislodge the arm.

A flapper exhaust diverter valve (110) is provided. The flapper exhaust diverter valve (110) includes a valve body (210) comprising an exhaust inlet (212), an evaporator outlet (214), and a bypass outlet (216). The flapper exhaust diverter valve (110) also includes a flapper assembly (310) that is rotatably coupled to the valve body (210) at a first distal end (310a) of the flapper assembly (310).

A supporting member supporting a valve body includes a supporting member body having a semispherical bottom portion that makes contact with the top face of the valve body and a securing recess that is provided in the center and at a predetermined axial location to adjoin a through hole provided in the valve body, and a securing member including an engaging portion that has a form of a shaft having a predetermined diameter made of an elastic material and protrudes from a proximal end and a securing projection that swells out from a predetermined axial location of the shaft portion to fit into a securing recess provided in a through hole in the supporting member body.

In the technical field of wastegate valves comprising a functional assembly of a body member (20) and an actuable member (30), measures are proposed to limit axial wear of the body member (20) and the actuable member (30) on each other as a result of engine vibration and pulsation. One of the measures involves a design of the wastegate valve in which at least one of surfaces (24, 33) of the body member (20) and the actuable member (30) facing each other in an axial direction (A) of the wastegate valve is provided with at least one elevated portion (26, 35) delimited by at least one recessed portion (27, 36) in at least a tangential direction (T) about the axial direction (A). In this way, one or more spaces for receiving tiny wear particles from the interface between the body member (20) and the actuable member (30) are obtained.

A turbine comprising a wastegate chamber (28): a turbine housing (12) defining a turbine inlet (14), the turbine housing (12) comprising: a wastegate inlet passageway (30) defining a flow path between the turbine inlet (14) and the wastegate chamber (28), wherein the wastegate inlet passageway (30) comprises a turbine port (38) proximal the turbine inlet (14) and a non-circular valve port (36) proximal the wastegate chamber (28), and a raised rim (52) surrounding the non-circular valve port (36) and conformal to the shape of the non-circular valve port (36), wherein the raised rim comprises a first sealing surface (52); and a valve member (42) comprising a second sealing surface (50), wherein the valve member (42) is moveable between a closed position in which the second sealing surface (50) forms a seal with the first sealing surface (54) to prevent fluid flow along the flow path and an open position in which the second scaling surface (50) is spaced apart from the first sealing surface (54) to permit fluid flow along the flow path.