CN211648398U

CN211648398U - External intercooler air compressor for automobile

Info

Publication number: CN211648398U
Application number: CN202020136681.5U
Authority: CN
Inventors: 朱彬; 李传武; 汪惠林; 蒋伟荣; 钟周乐; 周胜博
Original assignee: Ruili Group Ruian Auto Parts Co Ltd
Current assignee: Zhejiang Ruili air compressor equipment Co.,Ltd.
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-09
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses an external intercooler air compressor for car, a serial communication port, the direction stroke district of piston (57) adopts little bore to distinguish the separation with compression stroke, the valve plate on the terminal surface of piston (57), box jar hole and box upper portion constitutes one-level compression cylinder inner space (65), the below of piston (57), box jar hole and box jar hole terminal surface constitute second grade compression cylinder inner space (68), and gas is discharged from one-level discharge valve (56) after one-level compression cylinder inner space (65) compression, gets into external intercooler (71), and the one-level compressed gas after intercooler (71) cooling pushes away second grade admission valve (62) and gets into second grade compression cylinder inner space (68). The utility model provides an oil-free automobile external intercooler air compressor of long-life exhaust to have that exhaust pressure is high, low noise, low vibration, little volume lightweight are convenient for advantages such as installation, and interstage cooling can further improve compression efficiency.

Description

External intercooler air compressor for automobile

Technical Field

The utility model relates to an external intercooler air compressor for the car particularly relates to a piston type external intercooler air compressor for car.

Background

The automobile air compressor is mainly used for providing necessary air sources for an automobile braking technology, a suspension system, a door opening and closing device and an auxiliary pneumatic device. At present, the air compressor for the vehicle mainly comprises a sliding vane type air compressor, a screw type air compressor, a vortex type air compressor, a piston type air compressor and the like, but the piston type air compressor which is basically used in the market is lubricated by oil, has high oil content along with gas, is easy to have faults of oil leakage, oil leakage and the like, seriously influences the service life of parts such as a vehicle dryer, a steam valve and the like, additionally increases a lot of cost, and can cause secondary pollution.

Although there has been no oil piston air compressor machine in the market can solve along with vapour "oil mixing" problem, because congenital structure restriction, bear and all can only adopt non-maintaining fat lubricated bearing with the bearing, later stage is because lubricated not enough, leads to the bearing wearing and tearing to become invalid easily, and life is shorter, and adopts non-maintaining bearing, and the bent axle is difficult to dispose balanced vibration and is big than traditional oil lubrication air compressor machine.

Moreover, with the development of automobile electromotion, after no engine exists, the electric air compressor is a main noise source on a pure electric vehicle at present, and compared with other types of air compressors, the noise of the piston type air compressor has a congenital short plate, so that the requirement on the comfort of the whole automobile is difficult to meet.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a long-life exhaust oilless automobile is with external intercooler air compressor to have that exhaust pressure is high, low noise, low vibration, little volume lightweight are convenient for advantages such as installation.

Particularly, the utility model provides an external intercooler air compressor for car, a serial communication port, piston 57's direction stroke district adopts little bore to distinguish the separation with the compression stroke, piston 57's terminal surface, box jar hole and the valve plate on box upper portion constitute one-level compression cylinder inner space 65, piston 57's below, box jar hole and box jar hole terminal surface constitute second grade compression cylinder inner space 68, and gas is discharged from one-level discharge valve 56 after one-level compression cylinder inner space 65 compresses, gets into external intercooler 71, and the one-level compressed gas after intercooler 71 cools off pushes away second grade admission valve 62 and gets into second grade compression cylinder inner space 68, little bore means compares little bore with the compression stroke district.

In one embodiment, the external intercooler air compressor for an automobile described herein is characterized in that a self-lubricating piston ring is disposed at a compression stroke area of the piston 57.

In one embodiment, the external intercooler air compressor for an automobile according to the present application is characterized in that the piston rings are a first piston ring 58, a second piston ring 60, and a third piston ring 61.

In one embodiment, the external intercooler air compressor for an automobile described herein is characterized in that an auxiliary support ring 59 is further disposed at a compression stroke region of the piston 57.

In one embodiment, the external intercooler air compressor for an automobile described herein is characterized in that an oil scraper ring 67 and a steam ring 66 are disposed on a pilot stroke region of the piston 57.

In one embodiment, the external intercooler air compressor for an automobile described herein is characterized in that a first-stage exhaust valve 56 and a first-stage intake valve 64 are disposed on a valve plate of the upper portion of the case.

In one embodiment, the external intercooler air compressor for an automobile described herein is characterized in that a secondary intake valve 62 and a secondary exhaust valve 70 are disposed on a case cylinder bore.

In one embodiment, the external intercooler air compressor for an automobile described herein is characterized in that the gas is compressed twice along the gas path 63 as the piston reciprocates once during one revolution of the crankshaft.

In one embodiment, the external intercooler air compressor for an automobile is characterized in that an oil pump is integrated at the tail of a crankshaft to provide oil pressure lubrication and complete machine oil cooling for a bearing bush arranged at a journal oil hole of the crankshaft.

In one embodiment, the external intercooler air compressor for the automobile is characterized in that a connecting rod is arranged on the outer side of the bearing bush, and the bearing bush is arranged in a small end of the connecting rod and is lubricated by splashing.

Compared with the prior art, the technical scheme of the utility model have following advantage:

the utility model provides a there is lubricated oil-free compression's piston air compressor machine for car. In the traditional piston type air compressor for vehicles, in the compression stroke process, because the residual lubricating oil on the cylinder wall is fully contacted with air and discharged along with the air, and during the air inlet stroke, the oil gas in the tank is blown upwards to enter a compression cavity, so the gas contains oil.

The structure of the utility model separates the small cylinder diameter lubrication guide stroke area from the compression stroke area, so that the air in the compression stroke area is not contacted with the lubricating oil, and the oil-containing gas is inhibited from flowing back to the compression cylinder by controlling the pressure building and releasing direction, thereby avoiding the oil content along with the gas; oil pressure lubrication and splash lubrication are adopted, so that the bearing can be fully lubricated and cooled, and a two-stage compression technology is adopted, so that the load borne by the bearing is greatly reduced, and the long service life of the bearing is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an external intercooler air compressor for an automobile according to the present application.

The reference numbers in the figures denote:

56: primary exhaust valve, 57: piston, 58: first piston ring, 59: auxiliary support ring, 60: second piston ring, 61: third piston ring, 62: secondary intake valve, 63: gas path, 64: primary intake valve, 66, steam ring, 67: scraper ring, 69: second-stage exhaust valve plate, 70: secondary exhaust valve, 71: and an intercooler.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. The embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.

The application discloses external intercooler air compressor for car adopts external intercooler to carry out interstage cooling. FIG. 1 is a schematic structural view of an external intercooler air compressor for an automobile according to the present application. As shown in fig. 1, in order to further improve the compression efficiency, an interstage cooling method is adopted, and the high-temperature gas compressed in one stage is cooled by an external intercooler 71.

As shown in fig. 1, the guide stroke region of the piston 57 adopts a small cylinder diameter, thereby being separated from the compression stroke region. The end face of the piston 57, the tank body cylinder hole and the valve plate at the upper part of the tank body form a primary compression cylinder inner space 65, a secondary compression cylinder inner space 68 is formed below the piston 57, the tank body cylinder hole and the tank body cylinder hole end face, gas is compressed in the primary compression cylinder inner space 65, then is discharged from the primary exhaust valve 56, enters an external intercooler 71, and the primary compressed gas cooled by the intercooler pushes the secondary intake valve 62 open and enters the secondary compression cylinder inner space 68.

The compression stroke area of the piston 57 is provided with a first piston ring 58, a second piston ring 60, a third piston ring 61 and an auxiliary support ring 59 which are self-lubricated, and the guide stroke area of the piston is provided with a scraper ring 67 and a steam ring 66. The valve plate at the upper part of the box body is provided with a first-stage exhaust valve 56 and a first-stage intake valve 64. The end face of the cylinder hole of the box body is provided with a secondary air inlet valve 62 and a secondary air exhaust valve plate 69. A secondary exhaust valve 70 is disposed below the secondary exhaust valve plate 69. A secondary intake valve 62 and a secondary exhaust valve 70 are disposed in the housing bore.

The piston 57 reciprocates in the tank cylinder bore, and when moving from bottom dead center to top dead center, the volume of the primary compression cylinder space 65 decreases, the gas is compressed, and the pressure increases to push the primary exhaust valve 56 to exhaust and enter the external intercooler 71. At the same time, the volume of the space 68 in the secondary compression cylinder gradually increases, and the primary compressed gas after being cooled by the intercooler 71 pushes the secondary intake valve 62 open into the secondary chamber.

When the piston moves from the top dead center to the bottom dead center, the volume of the primary compression cylinder space 65 increases to generate negative pressure, and air is sucked through the primary intake valve 64. At the same time, the volume of the space 68 in the secondary compression cylinder gradually decreases, the gas is compressed, and the gas pressure increases to push the secondary exhaust valve 70 to exhaust.

The crankshaft rotates once, the piston in the cylinder reciprocates once, the gas is compressed twice along the direction shown by the gas path 63, and the process is repeated, so that the gas is continuously compressed and discharged.

The application discloses automobile can arrange thin wall bearing promptly axle bush in the journal oilhole department of external intercooler air compressor's bent axle. The outer side of the bearing bush at the crank of the crankshaft is provided with a connecting rod, and the bearing bush is arranged in the small end of the connecting rod and is lubricated by splashing.

The external intercooler air compressor for the automobile can adopt the design of integrating the oil pump at the tail part of the crankshaft, and provides oil pressure lubrication and complete machine oil cooling for the bearing bush. In addition, the air compressor for the automobile can also adopt an oil lubrication and water cooling system of the engine on the whole automobile.

Furthermore, the utility model discloses can be used to the new forms of energy vehicle electricity drive air compressor machine, also can be used to traditional vehicle and drive by the engine to can integrate the water-cooling that adopts the engine, oil pump lubrication and oil cooling etc. system.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The external intercooler air compressor for the automobile is characterized in that a guide stroke area of a piston (57) adopts a small cylinder diameter so as to be separated from a compression stroke area, a first-stage compression cylinder inner space (65) is formed by an end face of the piston (57), a box cylinder hole and a valve plate on the upper portion of a box body, a second-stage compression cylinder inner space (68) is formed by the box cylinder hole and the end face of the box cylinder hole below the piston (57), gas is discharged from a first-stage exhaust valve (56) after being compressed in the first-stage compression cylinder inner space (65) and enters an external intercooler (71), and the first-stage compressed gas cooled by the intercooler (71) pushes a second-stage intake valve (62) open to enter the second-stage compression cylinder inner space (68), wherein the small cylinder diameter is smaller than the.

2. The automotive external intercooler air compressor as defined in claim 1, wherein a compression stroke area of the piston (57) is arranged with self-lubricating piston rings.

3. The external intercooler air compressor for an automobile of claim 2, wherein the piston rings are a first piston ring (58), a second piston ring (60), and a third piston ring (61).

4. The automotive external intercooler air compressor as defined in claim 1, further characterized in that an auxiliary support ring (59) is arranged at a compression stroke area of the piston (57).

5. The automotive external intercooler air compressor as defined in claim 1, wherein an oil scraper ring (67) and a steam ring (66) are disposed on a pilot stroke region of the piston (57).

6. The external intercooler air compressor for automobile as claimed in claim 1, wherein a first stage exhaust valve (56) and a first stage intake valve (64) are disposed on the valve plate at the upper portion of the case.

7. The external intercooler air compressor for an automobile as claimed in claim 1, wherein a secondary intake valve (62), a secondary exhaust valve (70) are disposed on the tank cylinder bore.

8. The external intercooler air compressor for an automobile as recited in claim 1, wherein the gas is compressed twice in a direction indicated by a gas path (63) by reciprocating the piston in the cylinder once per rotation of the crankshaft.

9. The external intercooler air compressor for an automobile as claimed in claim 1, wherein an oil pump is integrated at the tail of the crankshaft to provide oil pressure lubrication and overall oil cooling for the bearing pads disposed at the journal oil holes of the crankshaft.

10. The external intercooler air compressor for an automobile as claimed in claim 9, wherein a connecting rod is disposed outside the bearing bush, and a small end of the connecting rod is disposed inside the bearing bush and lubricated by splashing.