| 摘要 |
An apparatus is provided for pressurizing a fluid system, for example, a hydraulic brake system of an automobile, which is comprised of a tank for holding a supply of fluid and a pump. The pump is connected to the tank through a pressure sensitive check valve. The pump has a piston which, when it is drawn upward, creates a vacuum inside the pump which causes the check valve to open and allows fluid from the tank to flow into the pump. When sufficient fluid is inside the pump, pressure is then applied to the piston which pressurizes the fluid inside the pump and closes the check valve. The fluid inside the pump is now under pressure and in this condition can be introduced into various fluid systems for the purpose of pressurizing the systems. This apparatus is especially useful for bleeding of hydraulic brake systems.
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