VACUUM RETENTION VALVE FOR BRAKE BOOSTER, BRAKE BOOSTER DEVICE AND AUTOMOTIVE VEHICLE

摘要

The present invention refers to a vacuum retention valve in brake booster devices of automotive vehicles, comprising a first outlet (1) associa¬ ted to the engine and a second outlet (2) associated to the brake booster device, a membrane (6) located in a chamber (7), and a flow path (13) from where the air of the brake booster is withdrawn to generate vacuum, and in the valve, the membrane (6) is isolated from the flow path (13), thus guaran- teeing a better vacuum recovery time due to the low internal loss of load ge¬ nerated. It also describes a brake booster device for an automotive vehi¬ cle comprising a vacuum retention valve such as defined in the prior para¬ graph, and the device has a reduced recovery time between braking. It further describes an automotive vehicle, characterized by com¬ prising the vacuum retention valve described above.