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What is the Structural Principle of a Booster Cylinder?

2 Answers

LaBrooke

07/25/25 2:11am

The structural principle of a booster cylinder involves manually pressurizing (via a hydraulic hand pump) to allow hydraulic oil to enter the cylinder through a one-way valve. Once inside, the hydraulic oil cannot flow back due to the one-way valve, forcing the piston rod upward. The process continues as more hydraulic oil is pumped into the cylinder. Booster Cylinder: Designed by combining the advantages of pneumatic and hydraulic cylinders, the booster cylinder strictly isolates hydraulic oil from compressed air. The piston rod inside the cylinder automatically initiates contact with the workpiece, offering fast operation and more stable performance compared to pneumatic systems. It features a simple cylinder structure, easy force adjustment, and can achieve high output similar to hydraulic presses under the same conditions. Additional benefits include low energy consumption, soft landing to protect molds, easy installation, and the ability to mount special booster cylinders at any 360-degree angle. It occupies minimal space, has fewer faults, no temperature rise issues, long lifespan, and low noise, among other core characteristics. Booster Cylinder Types: Pre-pressurized booster cylinder, direct-pressurized booster cylinder, stroke-adjustable booster cylinder, increased return-stroke booster cylinder, compact parallel booster cylinder, mini booster cylinder, high-speed booster cylinder, and oil-gas isolated booster cylinder.

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LeArcher

08/10/25 4:26pm

Having driven cars all my life, I'm all too familiar with this booster cylinder—simply put, it's an assistant in the braking system that makes pressing the brake pedal effortless. Structurally, it resembles a plastic box divided into two small chambers: one is a vacuum chamber connected to the engine's intake pipe, and the other is an atmospheric chamber open to the outside air. The two are separated by a flexible rubber diaphragm. The principle is that when you press the brake, a valve opens, allowing air to rush into the atmospheric chamber, creating a pressure difference. The suction from the vacuum chamber pulls, and the rubber diaphragm pushes the pushrod to press the brake fluid, saving you more than half the effort. Over time, as the car ages, if the diaphragm ruptures or the valve leaks air, the brake pedal becomes as hard as a rock, which is extremely dangerous. Therefore, regularly check the vacuum hose for cracks—don't wait until there's a problem at high speed to regret it.

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What Do Power and Torque Mean?

Two important parameters of an engine are horsepower and torque. These two parameters are key factors in determining the quality of an engine. Torque is the force that causes an object to rotate. In simpler terms, torque indicates how much strength a car has. Power refers to the speed at which the engine performs work, essentially how fast the engine can rotate. Generally, a car with higher rotational speed can run faster. Horsepower is a unit of power. Typically, for a given power output, the rotational speed and torque of the same engine are inversely proportional. This means that the slower the engine's rotational speed, the greater its torque and strength, but at the expense of speed. Conversely, a higher rotational speed results in lower torque and relatively less strength, but higher speed. High torque is beneficial for acceleration, while high rotational speed enables the car to run faster. However, for different engines, if the power is greater, the rotational speed will be relatively higher, and the torque will also be greater. This is why a Bugatti engine with 1000 horsepower can reach speeds of 400 km/h and accelerate from 0 to 100 km/h in just over three seconds. In contrast, a Santana with just over 100 horsepower cannot exceed 180 km/h and takes more than ten seconds to accelerate from 0 to 100 km/h.

Does touching the line with the car body result in point deduction in Subject 2?

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Touching the line means the car body crosses the line. In the Subject 2 exam, crossing the line results in a deduction of 100 points, and the exam is considered failed. In addition to the car body crossing the line, other actions that result in a 100-point deduction include failing to enter the garage during reverse parking, stopping midway, not following the prescribed route or sequence, and exceeding the allotted time. The full score for Subject 2 is 100 points, with evaluation criteria set for failing, deducting 20 points, deducting 10 points, and deducting 5 points. The exam is considered passed under the following conditions: ① For applicants of large buses, trailers, city buses, medium buses, and large trucks, a score of 90 or above is required; ② For other vehicle types, a score of 80 or above is required. If you fail the Subject 2 exam, you are allowed one retake on the spot. If you do not take the retake or fail the retake, the exam is terminated, and the applicant must reschedule the exam after ten days. During the validity period of the driving skills test permit, the number of rescheduling attempts for Subject 2 and Subject 3 road driving skills exams must not exceed five. If the fifth rescheduled exam is still failed, the results of other previously passed subjects will be invalidated.

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