CN115467738A

CN115467738A - Engine degassing structure

Info

Publication number: CN115467738A
Application number: CN202211184457.3A
Authority: CN
Inventors: 陈晓克; 樊心龙; 王春玲; 孙朝进; 梁剑锋
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2022-12-13

Abstract

The invention discloses an engine degassing structure which comprises a degassing pipe arranged on a cylinder cover of a longitudinally-arranged engine body, wherein the degassing pipe is communicated with an expansion water tank, the side part of the front end of the cylinder cover is provided with a gas outlet hole communicated with an inner cavity of a cylinder cover water jacket of the cylinder cover, and the gas outlet hole is communicated with the expansion water tank through the degassing pipe. The invention discloses an engine degassing structure, which belongs to the technical field of engine cooling, wherein an air outlet hole is formed in the side part of the tilted front end of a cylinder cover, so that gas in a water jacket can flow out conveniently, the gas outlet hole is connected with an expansion water tank through a degassing pipe, degassing treatment is performed on the inner cavity of the water jacket of the cylinder cover, the gas is discharged conveniently, the expansion water tank can be ensured to fill cooling liquid into the water jacket of the cylinder cover quickly, an engine can be ensured to be cooled effectively, the overhigh temperature of a longitudinally-arranged engine body can be prevented, and the normal use of the engine can be ensured.

Description

Engine degassing structure

Technical Field

The invention relates to an engine cooling technology, in particular to a degassing structure of an engine.

Background

The heat dissipating (cooling) system of automobile is a closed circulating system, and the circulation of cooling liquid helps the engine consume excessive heat. When air exists in the circulating system, the normal circulation of the cooling liquid can be blocked, the cooling effect is reduced, the temperature of the engine body is overhigh, and the normal use of the engine is influenced.

The cooling liquid outlet of some engines is positioned at the rear end of a cylinder cover of the engine, a degassing port is arranged on a cooling liquid outlet connector at the rear end of the cylinder cover, a degassing pipe is arranged on the degassing port, and the degassing pipe is connected with an expansion water tank of the whole vehicle to degas the engine.

When the engine is longitudinally arranged on the whole vehicle, the central line of the crankshaft of the engine forms an included angle of 3-5 degrees with the ground plane, namely the front part of the engine is high and the rear part of the engine is low, due to the arrangement requirements of a power assembly and a transmission system of the whole vehicle. At this time, the degassing port arranged at the rear end of the engine is not the highest position of the water jacket of the engine cylinder head, which influences the degassing effect of the engine and further influences the primary filling rate of the cooling liquid.

Disclosure of Invention

The technical problem to be solved by the present invention is to solve some of the above-mentioned deficiencies of the prior art, and the object of the present invention is to provide an engine degassing structure.

In order to achieve the purpose, the invention provides an engine degassing structure which comprises a degassing pipe arranged on a cylinder cover of a longitudinally-arranged engine body, wherein the degassing pipe is communicated with an expansion water tank, the side part of the front end of the cylinder cover is provided with a gas outlet hole communicated with an inner cavity of a cylinder cover water jacket of the cylinder cover, and the gas outlet hole is communicated with the expansion water tank through the degassing pipe.

Furthermore, an air outlet joint is connected to the air outlet hole, the air outlet pipe is sleeved at the outer end of the air outlet joint, and the inner end of the air outlet joint is connected with the air outlet hole in an inserting mode.

Furthermore, the inner end of the air outlet joint is in threaded connection with the air outlet hole through a threaded pipe.

Furthermore, the periphery of the cylinder cover is located above the air outlet hole and is connected with an air guide pipe connected with the expansion water tank, a three-way structure is arranged on the air guide pipe, and the air removing pipe is connected with the three-way structure.

Furthermore, the air guide pipe is arranged around the cylinder cover, and the position of the end, connected with the expansion water tank, of the air guide pipe is higher than that of the three-way structure.

Advantageous effects

Compared with the prior art, the engine degassing structure has the following beneficial effects: this engine degassing structure structural design is reasonable, sets up the venthole at the front end lateral part of cylinder head perk, and the gaseous outflow in the water jacket of being convenient for is connected with expansion tank through removing the trachea, carries out degassing treatment to the water jacket inner chamber of cylinder head, and the gas outgoing of being convenient for guarantees that expansion tank can be quick fills up the coolant liquid with the water jacket of cylinder head, guarantees that the engine is effectively cooled off, prevents to indulge and puts the engine organism high temperature, guarantees the normal use of engine.

Drawings

FIG. 1 is a structural perspective view of an engine air removal structure on a cylinder head of the present invention;

FIG. 2 is a structural side view of an engine air removal structure on a cylinder head of the present invention;

fig. 3 is a perspective view of the structure of the vertical engine body and the cylinder head according to the present invention.

In the figure: 1. longitudinally arranging an engine body; 2. a cylinder head; 3. removing an air pipe; 4. an air outlet; 5. an expansion tank; 6. an air outlet joint; 7. an air duct; 8. a three-way structure; 9. and (3) a bracket.

Detailed Description

The invention is further described below with reference to examples, but not to be construed as in any way limiting the invention, which is intended to be covered by the claims of the invention, with only a limited number of modifications being possible by anyone within the scope of the claims.

Specific embodiments of the present invention are such that: referring to fig. 1-3, an engine degassing structure comprises a degassing pipe 3 arranged on a cylinder head 2 of a longitudinal engine body 1, the degassing pipe 3 is communicated with an expansion water tank 5, an air outlet 4 communicated with an inner cavity of a cylinder head water jacket of the cylinder head 2 is arranged at the front end side of the cylinder head 2, the air outlet 4 is arranged at a position where the water level of the water jacket of the cylinder head 2 is higher, and the air outlet 4 is communicated with the expansion water tank 5 through the degassing pipe 3.

Among this engine degassing structure, front end side portion at the perk of cylinder head 2 sets up venthole 4, and the gaseous outflow in the water jacket of being convenient for is connected with expansion tank 5 through removing trachea 3, carries out the degasification to cylinder head 2's water jacket inner chamber, and the gaseous emission of being convenient for guarantees that expansion tank 5 can be quick fills up the coolant liquid with cylinder head 2's water jacket, guarantees that the engine obtains effective cooling, prevents to indulge and puts 1 high temperature of engine organism, guarantees the normal use of engine.

In this embodiment, 4 departments of venthole are connected with the joint 6 of giving vent to anger, except that trachea 3 cup joints in the outer end that gives vent to anger to connect 6, give vent to anger to connect 6 the inner end and the venthole 4 of 6 and peg graft through the screw thread, except that

trachea

3 and 6 high-speed joint of giving vent to anger, simple to operate, easy operation.

In the embodiment, the inner end of the air outlet joint 6 is in threaded connection with the air outlet hole 4 through a threaded pipe.

In this embodiment, the periphery of the cylinder head 2 is located above the air outlet 4 and is connected with an air duct 7 connected with the expansion tank 5, the air duct 7 is provided with a three-way structure 8, the degassing pipe 3 is connected with the three-way structure 8, and high-temperature gas in the water jacket rises into the air duct 7 through the three-way structure 8 and then flows into the expansion tank 5 to be collected.

In this embodiment, the air duct 7 is disposed around the cylinder head 2, and the position of the end of the air duct 7 connected to the expansion tank 5 is higher than the position of the three-way structure 8. The cylinder cover 2 is provided with a support 9 for supporting the air duct 7, the bottom of the support 9 is bent upwards to form a hook groove portion matched with the outer wall of the air duct 7, the support 9 supports the air duct 7, the air duct 7 is positioned through the hook groove portion, and a screw can be arranged on the groove wall of the hook groove portion to tightly push the air duct 7.

The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.

Claims

1. The engine degassing structure comprises a degassing pipe (3) arranged on a cylinder cover (2) of a longitudinally-arranged engine body (1), wherein the degassing pipe (3) is communicated with an expansion water tank (5), and is characterized in that the front end side part of the cylinder cover (2) is provided with a gas outlet hole (4) communicated with a cylinder cover water jacket inner cavity of the cylinder cover (2), and the gas outlet hole (4) is communicated with the expansion water tank (5) through the degassing pipe (3).

2. The engine degassing structure according to claim 1, wherein a gas outlet joint (6) is connected to the gas outlet hole (4), the degassing pipe (3) is sleeved at the outer end of the gas outlet joint (6), and the inner end of the gas outlet joint (6) is inserted into the gas outlet hole (4).

3. An engine degassing structure according to claim 2, characterized in that the inner end of the gas outlet joint (6) is screwed with the gas outlet hole (4) through a threaded pipe.

4. The engine degassing structure according to claim 1, 2 or 3, characterized in that the periphery of the cylinder head (2) is located above the air outlet (4) and is connected with an air duct (7) connected with the expansion tank (5), a three-way structure (8) is arranged on the air duct (7), and the degassing pipe (3) is connected with the three-way structure (8).

5. An engine de-aeration structure according to claim 4, characterized in that the air duct (7) is arranged around the cylinder head (2), and the position of the end of the air duct (7) connected with the expansion tank (5) is higher than the position of the three-way structure (8).