Slide rod type engine brake actuating device
A technology for engine braking and actuators, which is applied to engine components, machines/engines, valve devices, etc., can solve problems such as slow response and complex structure, and achieve the effects of reducing assembly time, simplifying assembly process, and reducing costs
Active Publication Date: 2015-12-16
DONGFENG COMML VEHICLE CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a slider-type engine brake actuator for the defects of the existing hydraulically driven engine brake device, such as relatively complex structure, slow response, hydraulic deformation at the speed limit level, etc.
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[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] see Figure 1 to Figure 2 , a sliding rod engine brake actuator, including a box 3, the box 3 is similar to the structure of a bullet box, the box 3 can be modularized, and it can be disassembled; the box 3 is installed on the rocker 2, directly drives the valve 5 through the cam 1 or indirectly drives the valve 5 through the valve yoke 4. The inner bottom of the box body 3 is provided with an inner hole along the opening direction of the air valve 5, and the top of the inner hole is provided with a control slide bar hole perpendicular to it; the top of the box body 3 is provided with a through hole 6 that communicates with the control slide bar hole, and at the same time There is a groove structure inside the hole of the control slide bar, so that the oil in the hole of the control slide bar will not cause resistance to the m...
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The invention relates to a slide rod type engine brake actuating device. A control slide rod hole perpendicular to an inner hole is formed above the inner hole under the inside of a box body, and a through hole formed in the top end of the box body is communicated with the control slide rod hole; an actuating slide rod clamp ring is arranged at the opening end of the inner hole; the lower portion, in the inner hole, of the actuating slide rod is in clamp connection with the actuating slide rod clamp ring; a middle step of the actuating slide rod abuts against an inner step of the box body through a control slide rod spring; a control slide rod is arranged in a control slide rod hole in the opening end of the control slide rod hole; one end of the control slide rod abuts against the box body through the control slide rod spring, and the other end of the control slide rod is connected with the control slide rod clamp ring; the opening end of the control slide rod hole is communicated with an oil channel of a rocker, and an intermediate annular groove is formed between steps at the two ends of the control slide rod; and the top end of the actuating slide rod is of an arc structure matched with a cylindrical arc of the control slide rod, and the top end of the actuating slide rod abuts against the control slide rod. According to the slide rod type engine brake actuating device, a control valve is avoided, the cost is reduced, and the modularity and the serialization are achieved.
Description
technical field [0001] The invention relates to an actuator, more specifically to a sliding rod type engine braking actuator, which belongs to the technical field of vehicle engine braking. Background technique [0002] Engine braking refers to cutting off the oil, releasing the clutch, the clutch is in a certain gear and turning on the engine brake switch, which uses the compression resistance, internal friction and intake and exhaust resistance generated by the compression stroke of the engine to form a brake on the driving wheel function, so as to realize the vehicle deceleration or smooth downhill technology. [0003] At present, the existing engine braking device is usually a hydraulically driven braking device, which uses the fuel injector of the engine itself to drive the cam as a power source to control the exhaust valve of the engine to achieve engine braking. However, this kind of braking device has a large number of parts and a complicated structure, which is unf...
Claims
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IPC IPC(8): F01L13/06
Inventor 张芳万虎李芳吴红亮冯田吴囿霖
Owner DONGFENG COMML VEHICLE CO LTD