2012年12月25日星期二

Single cylinder pressure shock absorber

Single cylinder pressure shock absorber

Just as its name implies is to single tube (tube) body design, internal into high pressure nitrogen stored in the body of the bottom of chamber to free piston separation of oil and gas. This type of shock absorber react fast, simple structure, thermal easy and convenient maintenance.

Single tube (tube) type shock absorber in the back stretch long stroke and compression stroke all rely on piston body produce dampingbrake racing, and the gas chamber in the lower body, in order to free piston separation oil and steam body (oil, gas separated), in the elongation stroke, the piston chamber pressure, oil by the body to the compression chamber is on the contrary, seal in gas indoor nitrogen in shortened, become a negative pressure on the piston chamber of high enough value.

In the oil is not full flow to the chamber, the chamber offset the uneven pressure type, therefore the shock will have good Q degree performance, in addition the air chamber and hydraulic oil chamber is completely separated, in under the condition of high pressure, won't have a hole, so the phenomenon in the use of harsh circumstances, still can produce a high level of stability, another oil seal for actuator force on the piston to directly in the chamber pressure, require a high degree of pressure and must pay special attention to the need for its machining high-precision delicate degree, the general shock absorber manufacturers to produce durability and high stability of single tube (tube) type shock absorber.

And single cylinder on the contrary, the compound drum manufacturing cost is low, to production, and the sealed gas belongs to low pressure gas, and high pressure of single cylinder, piston actuator compared when feeling more soft, this makes handling not as single tube (tube) type have sensitive, this type of shock chamber into the nitrogen not as single cylinder is so high, the bottom of the tube open connected to the piston chamber and the gas chamber even path.

Piston internal mechanism basically and single type the same, the difference is that in the shortened, the chamber part of the oil into the chamber, the connected path be resistance, inner guide core upside sets check valve in the elongation trip, from bar and top table between leakage oil back to the gas chamber, in shortened they were not suction gas indoor gas, its disadvantages for shock absorber in the elongation stroke, the piston down chamber from the oil chamber suction pressure value of the shock absorber oil easy generation vortex vacuum, and dissolve in oil have a bubble.

The system is actually based on modified shock absorber, are divided into 2 sets of hydraulic line. 2 sets of systems are the four respectively the shock "tie" up, its working principle is four this is independent of the shock absorber become a whole.

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