Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Braking execution mechanism used for engine braking oil way and using method of braking execution mechanism

An engine braking and actuator technology, applied in engine control, engine components, machines/engines, etc., can solve problems such as weak stability and poor braking effect, and achieve strong stability, good braking effect, and a wide range of applications. wide effect

Active Publication Date: 2017-07-21
DONGFENG COMML VEHICLE CO LTD
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and problems of poor braking effect and weak stability existing in the prior art, and to provide a braking effect better , a brake actuator with strong stability for engine brake oil circuit and its use method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Braking execution mechanism used for engine braking oil way and using method of braking execution mechanism
  • Braking execution mechanism used for engine braking oil way and using method of braking execution mechanism
  • Braking execution mechanism used for engine braking oil way and using method of braking execution mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] see Figure 1 to Figure 8 , a brake actuator for the engine brake oil circuit, including a brake chamber 9 and a brake oil chamber 13 and a brake piston 14 arranged inside, the side of the brake oil chamber 13 and the rocker arm The brake oil passage 5 and the oil discharge passage 6 in 4 communicate with each other, the bottom of the brake piston 14 is connected with the elephant foot 15 directly below it, and the bottom of the ball socket 152 in the elephant foot 15 is connected with the air valve directly below it. A valve gap 18 is formed between the yokes 17; the brake actuator also includes an adjustment bolt 2, a ball valve 10, a ball valve spring 11, a ball valve spring seat 3 and a brake spring 12, and the bottom end of the adjustment bolt 2 is located at the brake Inside the chamber 9, the top of the adjustment bolt 2 passes through the brake chamber 9 and the rocker arm 4 in turn and is fixedly connected with the outer wall of the rocker arm 4. The side and b...

Embodiment 2

[0058] Basic content is the same as embodiment 1, the difference is:

[0059] The adjusting bolt 2 is a T-shaped structure, including a screw fixing part 24 and a screw oil part 25 perpendicular to each other; the screw oil part 25 is a waist structure, including an oil-through top 251 and an oil-through waist 252 connected in sequence Connect with the oil-through bottom 253, the top surface of the oil-through top 251 is vertically connected with the bottom of the screw fixing part 24, and the bottom surface of the oil-through top 251, the top surface of the oil-through bottom 253 and the oil-through waist 252 form a semi-open ring altogether Type oil groove 254, at least two side oil holes 21 are uniformly opened on the oil waist 252 to communicate with the bottom oil hole 22 provided inside the screw oil portion 25. The top of the bottom oil hole 22 is set higher than the side oil hole 21, the bottom of the bottom oil hole 22 is flush with the bottom surface of the oil botto...

Embodiment 3

[0061] Basic content is the same as embodiment 2, the difference is:

[0062] The oil passage top 251 is provided with an oil passage gap 26 corresponding to the side oil hole 21, the inner bottom edge 261 of the oil passage gap 26 is located directly above the corresponding side oil hole 21, and the side oil hole 21 The bottom is connected to the top surface of the oil-through bottom 253 , and a gap 27 is formed between the junction of the side oil hole 21 , the oil-through bottom 253 and the side wall of the oil-through bottom 253 . The side wall of the screw fixing part 24 near its top is provided with an external thread to be threadedly connected with the adjustment nut 23, and the inside of the top of the screw fixing part 24 is provided with a screw connection hole 241, and the screw connection hole 241 The cross section is polygonal.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A braking execution mechanism used for an engine braking oil way comprises a brake chamber, a brake oil cavity, an adjusting bolt, a ball valve, a ball valve spring, a ball valve spring seat, a brake spring and a brake piston, wherein the brake oil cavity, the adjusting bolt, the ball valve, the ball valve spring, the ball valve spring seat, the brake spring and the brake piston are arranged in the brake chamber; engine oil sequentially passes through a side face oil hole and a bottom face oil hole which are formed in the adjusting bolt and then flows into the brake oil cavity; the bottom face oil hole, the ball valve and the ball valve spring are arranged up and down; the bottom end of the ball valve spring is connected with a spring seat bottom hole in the bottom of the ball valve spring. The brake spring arranged outside the ball valve spring seat in a sleeving mode is sleeved with the brake piston which slides up and down along the inner wall of the brake chamber; and an air valve gap is formed between the bottom of a ball socket in an elephant foot connected to the bottom of the brake piston and an air valve yoke. During application, through closing of an oil discharging way, counterforce of a rocker to the brake oil cavity and closing of the brake oil cavity, the brake oil cavity forms a high-pressure cavity, and braking is started. The design is good in braking effect and high in stability and sensitivity, and noise of the mechanism during operation is lowered advantageously.

Description

technical field [0001] The invention relates to an engine braking control device, which belongs to the technical field of vehicle engine braking, in particular to a brake actuator used for an engine brake oil circuit and its use method, and is particularly suitable for enhancing the control of the brake oil circuit The effect is to improve braking stability. Background technique [0002] The engine braking system is an in-cylinder braking technology of a diesel engine, which is generally of the compression release type. One or two exhaust valves are hydraulically driven to open at the end of the engine compression stroke. Friction and intake and exhaust resistance form a braking technology. The implementation methods of compression release brakes generally include three types: external type, special rocker type, and integrated rocker type. A set of hydraulic components is used to cooperate with oil on-off or oil pressure changes to realize the formation of high-pressure oil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F01L13/06F02D13/04F01L1/20
CPCF01L1/20F01L13/06F02D13/04F01L2810/04F01L2760/003
Inventor 张芳万虎吴囿霖廖显敏
Owner DONGFENG COMML VEHICLE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com