| 摘要 |
An oil injector is provided to smoothly inject brake oil or power steering oil by using a dual piston horizontally moved by compressed air. An oil injector includes a circular oil cylinder(10), two pistons(21,22), a first air chamber(30), a second air chamber(40), a third air chamber(50), and an oil seal(60). A partition is fixed to a central portion of the oil cylinder. The pistons are provided on both sides of the partition and are connected to each other by a connecting rod. The first air chamber is formed between the outer side of one piston and an end of the oil cylinder. An air introduction opening is formed on a wall surface of the oil cylinder. The second air chamber is formed on the inner side of the piston and a partition wall. An air introduction opening communicated with outside is formed in the partition wall. The third air chamber is formed between the other piston and the partition wall. An air communication hole communicated with outside is formed in the partition wall. The oil seal is formed between the outer side of the other piston and the other end of the oil cylinder. An oil injection opening and an oil discharge opening are formed in the oil seal. |
