Manufacturing method of pressure switch of automobile steering booster pump. : 40625 16 reading: 23 13 source: national maritime administration: x technology > latest patent > patent name bicycle and non-motor vehicle device manufacturing technology: technical field of manufacturing method of pressure switch of automobile steering booster pump: the utility model relates to a pressure switch of automobile steering booster pump, which belongs to the technical field of manufacturing of automobile steering booster mechanism.
Background: With the rapid development of automobile industry, people's requirements for driving comfort and safety are improved, and higher requirements are also put forward for the performance of automobile hydraulic steering system. The existing automobile steering booster pump mainly consists of a pump body, a pump cover, a pump shaft, a stator, a rotor, blades, an oil distribution plate, a flow pressure control valve and the like. Because there is no pressure switch, the output power of the engine is small when idling, which leads to the engine catching fire when steering.
The purpose of the utility model is to provide a pressure switch of automobile steering booster pump with reasonable design and good use effect, which can effectively ensure the stability of automobile steering booster.
The utility model relates to a pressure switch for an automobile steering booster pump, which comprises a pump body with a pump cavity, a pump shaft with a rotor arranged in the pump cavity and a stator with a compression chamber, and is characterized in that an oil guide hole is also arranged in the pump cavity, and a pressure switch is arranged at the end of the oil guide hole.
The pressure switch can be composed of a fixed contact and a moving contact separated by a spring.
The utility model adds an oil guide hole and a pressure switch consisting of a stationary contact and a moving contact in the pump cavity, and the middle is separated by a spring, which is reasonable in design, and can provide a pressure signal for the engine, so that the engine can adjust the engine speed according to the load, ensure the stability of steering power, prolong the service life of the automobile steering booster pump, and improve the comfort and safety of driving.
Fig. 1 is the axial structural sectional view of the automobile steering booster pump of the utility model; Fig. 2 is an enlarged sectional view of the structure of the utility model.
The utility model mainly consists of a pump body 1 with a pump chamber 2, an oil guide hole 8 with a pressure switch 9 at the end of the pump chamber 2, a pump shaft 3 with a rotor 5 and blades 6, a stator 4 with a compression chamber 7, etc. The pressure switch 9 consists of a fixed contact 10 and a moving contact 12, and is separated by a spring 1 1.
When working, the engine transmits torque to the pump shaft 3, and the rotor 5 placed in the compression chamber 7 is driven by the pump shaft 3 to make the oil in the steering oil pot be sucked into the compression chamber 7 through the oil inlet hole and the oil suction window on the oil distribution plate, then pumped into the pump chamber 2 through the oil pressure window on the oil distribution plate, and output to the steering gear through the oil outlet. When the direction is struck, the oil in the pump chamber 2 enters the pressure switch 9 through the oil inlet hole 8, which pushes the moving contact 10 to contact the fixed contact 12, and sends a pressure signal to the engine, so that the engine can adjust its speed.
claim of right
1. A pressure switch for an automobile steering booster pump includes a pump chamber.
(2) Pump body
(1), placed in the pump room.
(2) Inner belt rotor
(5) Pump shaft
(3), with compression chamber
(7) Stator
(4) characterized in that the pump cavity
(2) There is also an oil guide hole.
(8), oil guide hole
The end of the (8) is provided with a pressure switch.
(9)。
2. The pressure switch of automobile steering booster pump according to claim 1, wherein
(9) by the fixed contact
(10) and moving contact
(12) There is a spring in the middle.
( 1 1).
(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)