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Improved engine brake driving device

A technology of engine braking and driving devices, which is applied in the direction of engine components, machines/engines, valve devices, etc., can solve the problems of slow response, large inertia of the braking system, increased engine height and manufacturing costs, etc., to achieve reduction requirements, Effects of cost reduction, volume and weight reduction

Inactive Publication Date: 2013-05-01
SHANGHAI UNIVERSOON AUTOPARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an improved driving device for engine braking, and the improved driving device for engine braking will solve the problem that the engine braking system in the prior art has increased the height of the engine and the The technical problem of manufacturing cost, at the same time, it is necessary to solve the technical problem of large inertia and slow response of the braking system existing in the hydraulically driven engine brake

Method used

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  • Improved engine brake driving device
  • Improved engine brake driving device
  • Improved engine brake driving device

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown, an improved engine brake driving device 100 of the present invention is composed of an exhaust valve control mechanism, wherein the exhaust valve control mechanism is composed of a brake box 125, a brake plunger 160 and a brake The movable connector 210 is composed of a plunger hole 166 in the brake box 125, and the brake plunger 160 is provided in the plunger hole 166 in a sliding manner. A liquid seal is provided with the plunger hole 166, the brake plunger 160 has a working surface 140, and the working surface 140 forms an included angle 141 with the center axis of the brake plunger 160, A fluid channel 214 is provided in the brake box 125 to communicate with the plunger hole 166.

[0031] Further, a brake plunger stroke control mechanism is provided between the brake plunger 160 and the brake box 125, and the brake plunger stroke control mechanism consists of a spring 177 and a positioning pin 142 The sp...

Embodiment 2

[0042] Such as Figure 5 with Image 6 As shown, the structure of this embodiment is approximately the same as that of the first embodiment, except that the brake connecting member 210 is arranged under the brake piston 160.

Embodiment 3

[0044] Such as Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that the brake plunger 160 is horizontally arranged in the plunger hole 166 of the exhaust valve bridge 125.

[0045] Further, a screw 175 is provided between the end of the brake plunger 160 where the spring 177 is provided and the exhaust valve bridge 125, and the screw 175 is fixed to the exhaust valve through a nut 173. The gas valve is on the valve bridge 125. The stroke 136 of the plunger 160 is controlled by adjusting the distance between the end surface of the screw 175 and the spring seat 176 fixed on the plunger 160. After the distance is adjusted, the screw 175 is fixed on the valve bridge 215 by the nut 173. The screw 175 is not only used to control the stroke 136 of the brake plunger 160, but also serves as a spring seat for the brake spring 177. The other end of the spring 177 is fixed on the spring seat 176, and the spring seat 176 is fixed on the brake plunger 160. Ends...

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Abstract

The invention relates to an improved engine brake driving device, comprising a vent valve control mechanism. The vent valve control mechanism comprises a brake cabinet, a brake plunger and a brake connector, wherein a plunger hole is formed in the brake cabinet, the brake plunger is arranged in the plunger hole in a sliding mode and provided with a working surface, an included angle is formed between the working surface and a central axis of the brake plunger, and the brake cabinet is internally provided with a fluid channel communicated with the plunger hole. The improved engine brake driving device is internally provided with the brake plunger and a spring, engine oil and the spring of an engine brake fluid network control the brake plunger to move so as to switch and maintain the two engine states, i.e. brake and normal work. The improved engine brake driving device can be integrated with an engine so as to reduce the size and the weight of an engine brake without adopting a hydraulic brake control valve, thereby decreasing the cost, shortening the brake reaction time, avoiding high oil pressure or leakage, deformation and load fluctuation caused by the high oil pressure, preventing the brake valve from being influenced by oil temperature, oil pressure and air contents and acquiring smaller brake valve lift.

Description

Technical field: [0001] The invention relates to the mechanical field, in particular to an engine braking device, in particular to an improved engine braking driving device. Background technique: [0002] In the prior art, the method of using an internal combustion engine as a braking means is well known, and it only needs to be temporarily converted to a compressor. This conversion cuts off the fuel and opens the exhaust valve at or near the end of the engine piston compression stroke, allowing the compressed gas (air during braking) to be released. The energy absorbed by the compressed gas during the engine compression stroke cannot be The subsequent expansion stroke returns to the engine piston, but is dissipated through the engine's exhaust and heat dissipation system. The end result is effective engine braking, which slows down the vehicle. [0003] A precedent for engine brakes is the disclosure of US Patent No. 3220392 provided by Cummins, according to which the engine bra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L13/06
Inventor 杨洲柯恩九
Owner SHANGHAI UNIVERSOON AUTOPARTS CO LTD
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