摘要:
The invention relates to multi-layer laminates consisting of at least two thermosetting binding-agent layers and two layers consisting of textiles, said laminates being suitable for reinforcing planar substrates. The inventive multi-layer system contains a binding-agent layer facing the substrate to be reinforced (11), followed by a fibrous-textile layer (13), covered by a second binding-agent layer (14), which is covered in turn by a second fibrous-textile layer (15). Once cured, the binding-agent layer facing the reinforcing substrate forms an adhesive bond with the substrate to be reinforced and has either an identical or lower elasticity modulus than the second binding-agent layer (14) facing away from the substrate. Multi-layer laminates of this type are suitable for reinforcing thin-walled substrates with no read through effect, in particular automobile construction parts with large surface areas, such as doors, roof parts, engine compartment covers, boot lids or similar.
摘要:
The invention relates to a device for adjusting the angle of rotation of a camshaft relative to the crankshaft of an internal combustion engine. Said device comprises an adjusting element (2) that can be impinged hydraulically, the adjusting displacement of said element directly or indirectly modifying the phase position of the camshaft. The adjusting element (2) is delimited by two pressure chambers (28a to 29d and 30a to 30d), which can be hydraulically impinged or relieved by control lines (L4, L9, LST1, LST2). The device also comprises a control valve (102, 114, 168), which transports the oil flow that is delivered by an oil pump (106, 172) from an oil reservoir (T) to a first pressure chamber (28a to 28d and 30a to 30d) via a first control line, depending on the operating condition of the internal combustion engine, whilst the oil from a second pressure chamber (30a to 30d and 28a to 28d) is returned to the oil reservoir (T) via a second control line and vice versa. At least one controlled bypass (L6, L12, LB) is provided between the two pressure chambers (28a to 28d and 30a to 30d). This enables the adjustment speed of the camshaft adjustment device to be advantageously increased.
摘要:
The invention relates to a compensation reservoir (2) for a cooling circuit of an internal combustion engine, comprising at least one inflow connection (8, 10) and an outflow connection (12), both of which are connected to the cooling circuit, and a chamber system that is embodied inside the reservoir and receives a coolant. The individual chambers (26a to 26l) are at least partly interconnected via openings (29a to 29i or 30a to 30g). A cooling water pipe (8, 10) that is joined to the inflow connection extends into one of the chambers which is provided with an impact element (21, 22) for the inflowing coolant. Said impact element (21, 22) is embodied as an arched directing wall, along which the inflowing coolant is guided in a specific manner, whereby the coolant flowing into the compensation reservoir is prevented from foaming, among other things.
摘要:
The invention relates to a cylinder head for an internal combustion engine, in which at least one inlet and one outlet channel (10 to 13) are disposed and lead to a combustion chamber (8) next to a cylinder compartment (20). The inlet and outlet channel is monitored by valve elements (4, 6) and a piston (24) is movably disposed in the cylinder compartment. An injection valve (18) injects fuel into the combustion chamber, thereby producing a fuel/air mixture. An ignition device (26) for igniting the fuel/air mixture projects into the combustion chamber, and a charge movement device is disposed in the inlet channel. According to the invention, the charge movement device is configured as an adjustable flap element (16) which, when closed, leaves free two partial channel cross-sections (14a, 14b) of the inlet channel (14) via which combustion air reaches the combustion chamber (8). The inventive configuration of the flap element (16) allows, in a simple manner, the swirl and turbulence formation required for direct fuel injection in a stratified charge mode.