A compression release engine brake, compression brake, or decompression brake is an engine braking mechanism installed on some diesel engines. When activated, it opens exhaust valves to the cylinders, right before the compression stroke ends, releasing the compressed gas trapped in the cylinders, and slowing the vehicle.

“Jake Brake” refers to compression release engine brakes. A feature on large diesel-powered vehicles like semi-trailers, it works by releasing the compressed air in the engine via the exhaust valves to quickly reduce speed, resulting in a loud noise.

2024年9月28日 · With a Jake brake, you can slow your vehicle down without pressing the brake pedal by changing how your engine is configured. Not only do Jake brakes help save your service brakes from wear and tear, but they can also be used in conjunction with one another to drastically improve your stopping power.

2009年8月22日 · j发动机制动原理总结： 发动机的活塞压缩空气，使得压力和温度上升。接近上止点时，从动活塞打开排气门。大量的压缩空气（代表潜在的能量）通过排气管逃走。 因为在压缩行程中大量的压缩气体逃逸，所以无强制动力可以产生。

2008年4月12日 · Unlike the wheel brakes you have on your car, the Jacobs Engine Brake (TM) is a “compression release” engine brake used by large diesel trucks, especially on steep downgrades. To understand how it works, remember that a diesel engine has much higher compression than a gasoline engine, typically 15:1.

J-Brake发动机制动技术图文原理讲解类型：投稿来源：卡车之家作者：责任编辑：薛文祥发布时间：009年08月日J发动机制动是一种使用发动机进行制动的方法，J发动机制动提高了发动机的减速能力。

2018年5月21日 · J-Brake 发动机制动技术图文原理讲解 类型：投稿 来源：卡车之家 作者： 责任编辑：薛文祥 发布时间：2009 年 08 月 22 日 J发动机制动是一种使用发动机进行制动的方法，J发动机制动提高了发动 机的减速能力。

2025年3月18日 · A J brake, also known as a Jacobs brake or engine brake, is a type of auxiliary braking system that utilizes the engine’s compression to generate braking force. Unlike conventional hydraulic brakes, which rely on friction between brake pads and rotors, J brakes harness the inherent resistance of the engine during the compression stroke.

2023年9月20日 · 目前，美国Jake柴油发动机缓速器公司推出了一种先进的JakeBrake发动机辅助制动装置（简称：J-发动机制动装置）。

"Jake Brake", or "compression release brake", is a component installed on diesel engines that slows the vehicle without the driver having to apply the service (foot) brakes. The Jake Brake releases compressed air from the cylinder, slowing the vehicle by absorbing the engine's power.