Air spring closed-loop air circuit system with multistage self-pressurization mechanism

Abstract

The invention discloses an air spring closed-loop air circuit system with a multistage self-pressurization mechanism. The air spring closed-loop air circuit system mainly comprises a pressurization device, a one-way valve a, a filling solenoid, an air spring, a release solenoid, a high-pressure tank, a low-pressure tank and a one-way valve b. The air spring receives gas from the high-pressure tank to realize filling as needed and releases air to the low-pressure tank through the release solenoid when the air needs to be released, an air pressure tact switch device is acted by pressure in the low-pressure tank, a piston rod and a lower lifting lug are disconnected or connected by the device according to air pressure, and the gas enters the high-pressure tank after multistage pressurization to form a circulating air circuit in the vertical vibration stroke of the self-pressurization mechanism extrinsically motivated by a suspension. The invention provides an energy storage suspension capable of recovering vehicle vibration energy, high-pressure gas exhausted by the air spring can be effectively recovered, pressurized by the pressurization device and then recycled, and energy of an air suspension system is saved.

Description

technical field [0001] The invention relates to a multi-stage self-pressurizing device, in particular to a closed-loop air spring system capable of effectively recovering the air pressure discharged from the air spring and recycling it through the pressurization. Background technique [0002] With the improvement of living standards, people not only have higher and higher requirements for the performance of automobiles, but also put forward higher requirements for the energy saving of automobiles due to the increasing scarcity of natural resources. The air suspension system can effectively improve the ride comfort and handling stability of the vehicle. One of the important advantages of the air suspension is that it can raise and lower the body height by charging and deflating the air spring. However, in the traditional air suspension, in the process of body adjustment, especially when the body height is lowered, the compressed air in the air spring is directly discharged in...

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Problems solved by technology

Another example is the US Patent No. 6685174B2 "CLOSED LEVEL CONTROL SYSTEM FOR A VEHICLE", which proposes to set up an air storage tank to collect the gas discharged from the air spring. A certain amount of energy, but this solution needs to frequently start the air pump to inflate

The above solutions all rely on the air pump, and the air pump needs to consume energy, which essentially consumes the power of the engine, which adds a burden to the engine, and none of them proposes a solution for recovering the vibration energy of the suspension

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