| 摘要 |
<p>PURPOSE:To prevent the pressure of a dry air that tank inside from falling below the set pressure by providing an air supply passage for a tire with a brake circuit priority valve, which gets in communication position when the pressure inside the dry air tank is higher than the set pressure, and gets in the break position when it is below the set pressure. CONSTITUTION:A brake circuit priority circuit 24 is in communication position N by the air pressure inside a dry tank 21 when the air pressure inside the dry tank 21 is higher than the set pressure. But, when the air pressure inside the dry tank 21 falls below the set pressure, this brake circuit priority circuit 24 gets in break position M with spring force, and it does not supply air to an air passage 10. Therefore, the air pressure inside the dry tank 21 never further drops by the adjustment of the pneumatic pressure of a tire, and always enough air pressure for braking can be secured, and enough braking force can be gotten.</p> |
