Abstract: To provide an assembly, comprising an exhaust gas turbocharger and an intercooler for an internal combustion engine and a hot-side charge-air line connecting the exhaust gas turbocharger to a charge-air inlet of the intercooler, which assembly allows the movements to be equalised between the exhaust gas turbocharger and the intercooler and is simple to produce and assemble, it is proposed that the hot-side charge-air line comprises a one-piece plastics material tube which is formed from a material containing polytetrafluoroethylene and/or modified polytetrafluoroethylene and has at least one flexible zone.

Abstract: An internal combustion engine with a 2-stage charge loading includes a connection conduit with a supercharger intercooler provided between the compressors of the low pressure stage and high pressure stage. The supercharger intercooler is configured via a cooling unit in the charge air guiding connection conduit between the compressor of the ATL-low pressure stage and the compressor of the ATL-high pressure stage having a cooling medium flowing therethrough as well as by a specially configured section of the connection conduit. The connection conduit in this section forms with its wall the outer wall of the supercharger intercooler and delimits an air through-put volume sufficient to effect, via a cooling medium flowing through the cooling unit, an acceptable cooling of charge air flowing through the cooling unit that is built into the connection conduit.

Abstract: A pneumatically operated brake booster comprises a hydraulic cylinder disposed within a hydraulic braking circuit connecting a master cylinder to wheel brake cylinders to increase the braking pressure trapped within the wheel brake cylinders and a servomotor for pneumatically activating the hydraulic cylinder in response to hydraulic pressure from the master cylinder. The servomotor has a spring loaded diaphgragm piston forming a negative pressure chamber and a variable pressure chamber, the former being in connection to a source of negative pressure and the latter being connected to the atmospheric pressure in response to master cylinder pressure applied to the hydraulic cylinder. The brake booster includes a control valve which is provided to selectively connect the variable pressure chamber of the servomotor to such a positive pressure source as exhaust pressure to obtain additional pressure in an emergent braking operation of the vehicle.

Abstract: Disclosed is a hydraulic brake system for vehicles having a separated-type hydraulic fluid pressure amplifier, such as a hydraulic air servo or a hydraulic vacuum servo. This hydraulic brake system includes a brake master cylinder and said fluid pressure amplifier comprises a hydraulic piston and a control piston, which are moved by the pressure of working fluid from said master cylinder, and a power piston which is moved by the air pressure introduced by the action of the control piston. This hydraulic brake system further includes means for resiliently expanding a fluid passage provided in a part of the hydraulic passage between the brake master cylinder and the portion of the hydraulic fluid pressure amplifier in which the working fluid from the master cylinder is applied to said hydraulic piston and said control piston.