Two-stage supercharging vehicle-mounted air compressor

An air compressor and two-stage supercharging technology, which is applied in mechanical equipment, machines/engines, liquid variable capacity machinery, etc., can solve the problems of reducing the service life of air compressors, inconsistent installation dimensions, and damage to piston rings, etc., to achieve Improved exhaust efficiency, reduced power consumption, and high exhaust pressure
CN103758732AInactive Publication Date: 2014-04-30GUANGXI YUCHAI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGXI YUCHAI MASCH CO LTD
Publication Date
2014-04-30
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a two-stage supercharging vehicle-mounted air compressor and aims at providing an automotive two-stage supercharging air compressor which is low in power consumption, high in reliability and low in exhaust temperature. The two-stage supercharging vehicle-mounted air compressor comprises a cylinder cover, wherein the cylinder cover is connected with a cylinder body through a valve plate assembly, a crankshaft is arranged under the cylinder body, a primary air cylinder and a secondary air cylinder are arranged in the cylinder body in parallel, and an unloading mechanism is arranged on the valve plate assembly and comprises an unloading hole, a plunger piston, a pin, a rack, a spring and gear. The plunger piston is fixedly connected with the rack through the pin, one end of the plunger piston faces the unloading hole, the other end of the plunger piston is connected with the spring, the rack is meshed with the gear, a cooling system is arranged in the cylinder cover, air discharged by the primary air cylinder is cooled by the cooling system and then flows into the secondary air cylinder. The two-stage supercharging vehicle-mounted air compressor is suitable for modification of brake systems of large automobiles and existing automobiles.
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Description

technical field

[0001] The invention relates to the field of air compressors, in particular to a two-stage supercharging vehicle-mounted air compressor. Background technique

[0002] The braking system of large cars mostly uses air brakes as an auxiliary to increase the braking force. The air compressor is the first energy supply device in the braking system, directly providing the air required by the braking system and generating the air pressure required for braking. .

[0003] Most of the existing vehicle air compressors use ordinary single-stage air compressors. Due to their own structural limitations, ordinary single-stage air compressors have the following problems:

[0004] 1. With the increase of exhaust pressure, the exhaust efficiency of single-stage air compressor gradually decreases. When the exhaust pressure rises to 12Bar, the exhaust efficiency is about 50%, resulting in high engine power consumption;

[0005] 2. The exhaust temperature of the single-stage a...

Claims

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