A pressure regulating device, a compressed air supply system...

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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F16K 17/10 (2006.01) G05D 16/10 (2006.01)

Patent

CA 2760567

A pressure regulating device, a compressed air supply system and a motor vehicle are provided. The pressure regulating device comprises a first valve seat (301), a first valve plug (302), a second elastic body (314) and a first gas pipeline (307). A sliding sealing fit is provided between the first valve plug (302) and the first valve seat (301), and the first valve plug (302) divides the first valve seat (301) into a first chamber (305) and a second chamber (306). The second elastic body (314) is arranged in the second chamber (306) and supports the first valve plug (302). The first chamber (305) is connected with the first gas pipeline (307). The first valve plug (302) has at least two branch airways (323), each of which having a gas outlet (325). The first valve plug (302) has at least two third positions in which at least one gas outlet (325) is closed by the inner wall (321) and at least one of other gas outlets (325) leaves the inner wall (321). Gas flux and gas pressure are regulated through operation of a controller (400), making the first valve plug (302) move upward and downward, thus facilitating an easy regulating of gas flux and gas pressure in the fourth gas pipeline (310).

L'invention concerne un dispositif de régulation de pression, un système d'alimentation en air comprimé et un véhicule à moteur. Le dispositif de régulation de pression comprend un premier siège de soupape (301), un premier robinet à tournant (302), un second corps élastique (314) et un premier gazoduc (307). Un joint d'étanchéité coulissant est disposé entre le premier robinet à tournant (302) et le premier siège de soupape (301), et le premier robinet à tournant (302) divise le premier siège de soupape (301) en une première chambre (305) et une seconde chambre (306). Le second corps élastique (314) est disposé dans la seconde chambre (306) et soutient le premier robinet à tournant (302). La première chambre (305) est reliée au premier gazoduc (307). Le premier robinet à tournant (302) comporte au moins deux conduits d'air ramifiés (323) comportant chacun un orifice d'évacuation de gaz (325). Le premier robinet à tournant (302) possède au moins deux troisièmes positions dans lesquelles au moins un orifice d'évacuation de gaz (325) est fermé par la paroi interne (321) et au moins l'un des autres orifices d'évacuation de gaz (325) quitte la paroi interne (321). Le flux gazeux et la pression gazeuse sont régulés par le biais d'une opération d'un organe de commande (400), ce qui amène le premier robinet à tournant (302) à se déplacer vers le haut et vers le bas, facilitant ainsi la régulation aisée du flux gazeux et de la pression gazeuse dans le quatrième gazoduc (310).

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