Abstract: Connection arrangement for an air conditioning system, comprising a connector, which is connected to a first pipe and has a passage channel and at least one cylindrical portion, which can be inserted into a further pipe or into another component of the air conditioning system, and a radial flange, to which a sealing element is assigned, characterized in that a support body is assigned to the radial flange, the support body enclosing the passage channel and being provided with a radially protruding projection, the projection being equipped to be able to receive at least one fastening means and mobile air conditioning system, comprising the connection arrangement.

Abstract: This disclosure is directed to a portable handheld power-driven tool such as a cutoff machine. The cutoff machine includes an engine having a drive shaft. A drive wheel for the work tool is provided at one end of the drive shaft and a fan wheel for moving cooling air to the engine is mounted at the other end of the drive shaft. A pull rope starter is mounted at the power takeoff end of the drive shaft so that it lies outside of the flow of cooling air. In this way, abrasive dust is prevented from accumulating on the pull rope starter and its operational service life is significantly increased.

Abstract: The invention is directed to a motor-driven chain saw wherein a sprocket for a saw chain and a drive wheel for an oil pump are rotatably journalled on the crankshaft. The oil pump pumps oil for lubricating the saw chain and guide bar. The sprocket and the drive wheel are driven via a clutch drum. In this arrangement, a detachable resilient connecting member is provided to connect the drive wheel of the oil pump to the clutch drum at the peripheral wall of the latter. The resilient connecting member protects the drive wheel and the oil pump from excessive wear.