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A compact mobile drive fulcrum

A mobile and compact technology, applied in the direction of engine components, machines/engines, valve devices, etc., can solve the problem of rapid reduction of driving power, etc., and achieve the effects of downsizing, improving fuel economy, reliable maintenance and flexible switching

Active Publication Date: 2021-01-05
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main drive system and electromagnetic, eddy current and other transmission system retarders have problems such as rapid reduction of driving power due to overheating after long-term work, and engine braking technology has attracted much attention

Method used

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  • A compact mobile drive fulcrum
  • A compact mobile drive fulcrum
  • A compact mobile drive fulcrum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] figure 1 and figure 2 They are respectively the schematic diagrams of the first embodiment of the driving fulcrum in the working state and the failure state. It includes a drive pin 1 provided with a pin groove 11, a piston provided with a piston hole 21 and a first air release hole 22, a locking body 3, a piston sleeve provided with a piston sleeve groove 41, an intermediate oil passage 42 and a second air release hole 43 4. Pin spring 5, piston spring 7, fixed body provided with controlled oil channel 8. The piston at least includes a piston body 2a and a blocking block 2b, and the piston body 2a and the blocking block 2b are installed in one body. The driving pin 1 is installed in the piston, the piston is installed in the piston sleeve 4, the pin spring 5 is installed between the driving pin 1 and the piston, the piston spring 7 is installed between the piston and the piston sleeve 4, and the piston sleeve 4 is installed in the fixed body, A controlled oil cavit...

Embodiment 2

[0027] image 3 It is a schematic diagram of the second embodiment of the driving fulcrum in the working state. It includes a drive pin 1 provided with a pin groove 11, a piston provided with a piston hole and a first air release hole 22, a locking body 3, a piston sleeve 4 provided with a piston sleeve groove, an intermediate oil passage 42 and a second air release hole 43, Pin spring 5, piston spring 7, fixed body provided with controlled oil passage 8. The piston at least includes a piston body and a blocking block, and the piston body and the blocking block are installed in one body. The driving pin 1 is installed in the piston, the piston is installed in the piston sleeve 4, the pin spring 5 is installed between the driving pin 1 and the piston, the piston spring 7 is installed between the piston and the piston sleeve 4, and the piston sleeve 4 is installed in the fixed body, A controlled oil cavity 23 is formed between the drive pin 1 and the piston, and the controlled...

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PUM

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Abstract

A compact mobile driving fulcrum belongs to the fields of engine variable valves, cylinder deactivation and braking. It includes a driving pin provided with a pin groove, a piston provided with a piston hole and a first air release hole, a locking body, a piston sleeve provided with a piston sleeve groove, an intermediate oil circuit and a second air release hole, a pin spring, a piston spring, and The controlled oil cavity formed between the drive pin and the piston, and the fixed body provided with the controlled oil passage. By controlling the oil pressure of the controlled oil channel, the reliable maintenance and flexible switching of the driving fulcrum working state and failure state are realized. The size of the driving fulcrum is greatly reduced, especially the radial size, which is suitable for the application of new technologies on engines with small cylinder centers, especially the application of two-stroke braking technology and the application of cylinder deactivation technology on single-camshaft V-type engines.

Description

technical field [0001] The invention relates to a compact movable driving fulcrum, which belongs to the fields of engine variable valves, cylinder deactivation and braking. Background technique [0002] There are many long and steep roads in our country, the weight of trucks is higher than foreign standards, and the problem of overloading and overspeeding of trucks is serious. These have led to frequent road traffic accidents caused by trucks in our country, and extremely large and dangerous traffic accidents are mainly caused by large trucks. The main drive system and electromagnetic, eddy current and other transmission system retarders have problems such as rapid reduction of drive power due to overheating after long-term work, and engine braking technology has attracted much attention. Compared with four-stroke brakes such as exhaust brake and decompression drive, the braking power of two-stroke drive is larger, which is the trend of future development. In addition, engi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L13/06F01L13/00F01L9/10
Inventor 崔靖晨隆武强田华
Owner DALIAN UNIV OF TECH