| 摘要 |
FIELD: service of car. SUBSTANCE: peristaltic pump for automatic inflation of a tire is built in a tire. The pump is made up as a flexible pipe or space built in a tire or inner tube along the maximum length of the tire periphery. The inlet of the space of the pump is connected with atmosphere through a pressure regulator. The space end is inside the space of a tire to be inflated and provided with a valve made up as a rubber pipe. The pressure regulator is a pipe of a given rigidity that passes through the space of a tire. As soon as a given pressure is reached in a tire the pipe of the pressure regulator collapses thus shutting off the space of the pump from the atmosphere. The pump operates by moving the site of the collapsing of the pump space at a point at which a tire is in a contact with a road when wheel moves forward and rotates. EFFECT: enhanced efficiency. cl, dwg |
