CN104989506A

CN104989506A - Vibration reduction cooling exhaust pipe

Info

Publication number: CN104989506A
Application number: CN201510405275.8A
Authority: CN
Inventors: 陈卡丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-09
Filing date: 2015-07-09
Publication date: 2015-10-21

Abstract

The invention relates to a vibration reduction cooling exhaust pipe. The vibration reduction cooling exhaust pipe comprises a purifier, a silencer, an air guide pipe and a vibration reduction pipe, wherein the air guide pipe is connected to an air outlet end of an engine; the vibration reduction pipe, the purifier and the silencer are mounted on the air guide pipe in sequence; the vibration reduction pipe and the air guide pipe are connected through two closed bearings, and are coaxial; the vibration reduction pipe can freely rotate along self axis; a spiral guide groove is carved on the inner peripheral wall of the vibration reduction pipe; the vibration reduction pipe is fixedly mounted with a high-pressure one-way exhaust valve and a low-pressure one-way air inlet valve penetrating through the wall of the vibration reduction pipe; the high-pressure one-way exhaust valve and the low-pressure one-way air inlet valve are communicated through a shunt pipe; the external of the vibration reduction pipe is tightly providedwith a cooling pipe fixed on the air guide pipe in a sleeved manner; the cooling pipe is filled with cooling liquid; and the exhaust pipe can efficiently prevent the vibration, and can primarily cool the tail gas.

Description

Vibration damping cooled exhaust pipe

Technical field

The present invention relates to a kind of auto parts machinery, especially, is a kind of outlet pipe.

Background technique

Except small part employing electric energy provides the automobile of the energy, nowadays most automobile still adopts fuel engine to provide kinetic energy; The working principle of fuel engine determines the discharge that the tail gas of discharging from fuel engine be pulse feature, and what namely the air blast of tail gas, weak air-flow continued to replace discharges from outlet pipe; This pulse feature air-flow makes outlet pipe high vibration in exhaust process, and the fatigue of aggravation component and wearing and tearing, make the life-span of outlet pipe obviously shorten; Meanwhile, from the tail gas High Temperature High Pressure that outlet pipe is discharged, easily damage purifier and augment tube is aging.

Summary of the invention

For the problems referred to above, the invention provides a kind of vibration damping cooled exhaust pipe, this outlet pipe can efficiently vibrationproof, tentatively can lower the temperature to tail gas simultaneously.

For solving the problem, the technical solution adopted in the present invention is: this vibration damping cooled exhaust pipe includes purifier, silencing apparatus, air pipe and vibration damping pipe; Described air pipe is connected to the outlet side of motor, and described air pipe is provided with vibration damping pipe, purifier, silencing apparatus successively; Described vibration damping pipe is connected by two airtight bearings with described air pipe, and described vibration damping pipe and the coaxial and described vibration damping pipe of described air pipe freely can rotate along own axes; The inner circle wall of described vibration damping pipe is carved with spiral stream guidance groove; Described vibration damping pipe is also installed with the high pressure one-way exhaust valve running through vibration damping tube wall and low pressure breather cheek valve, and described high pressure one-way exhaust valve and low pressure breather cheek valve are by ram's horns conducting; Also airtightly in the outside of described vibration damping pipe be arranged with the cooling tube be fixed on air pipe, in described cooling tube, be filled with cooling liquid.

The invention has the beneficial effects as follows: described high pressure one-way exhaust valve refers to that the gas in vibration damping pipe flows out from high pressure one-way exhaust valve when the air pressure height in vibration damping pipe is open to high pressure one-way exhaust valve during certain numerical value; In like manner, described low pressure breather cheek valve refers to be opened to low pressure breather cheek valve during certain numerical value when the air pressure in vibration damping pipe is low, and gas flows to from low pressure breather cheek valve; Working principle of the present invention is as follows: after tail gas flows into outlet pipe from motor, enter vibration damping pipe at first, the tail gas of high temperature is rotating and flows through and transfer heat to vibration damping pipe under the drainage of spiral stream guidance groove, swiftly flowing tail gas reacts on vibration damping pipe, makes vibration damping pipe along own axis; Vibration damping pipe transfers heat to cooling liquid, simultaneously by self Stirring cooling liquid, makes cooling liquid rapid mixing even, accelerates heat radiation; Due to the discharge that tail gas is pulse feature, namely high pressure exhaust gas, low-pressure tail gas are alternately discharged; When high pressure exhaust gas flows through high pressure one-way exhaust valve, high pressure one-way exhaust valve is opened, and the part in tail gas enters ram's horns buffer memory, when low-pressure tail gas flows through low pressure breather cheek valve, low pressure breather cheek valve is opened, and the tail gas in ram's horns adds in low-pressure tail gas; This structure can effectively in and high pressure exhaust gas and low-pressure tail gas, make the tail gas stable gas pressure of discharging from motor, thus effectively weaken the vibration of outlet pipe.

Structure of the present invention is simple, low cost of manufacture, improves, effectively improves the vibration of outlet pipe, have good radiating effect simultaneously from the source of exhaust pipe vibrations.

As preferably, described ram's horns is made by elastic expansion pipe; When high pressure exhaust gas drains into ram's horns from high pressure one-way exhaust valve, tail gas can temporarily be stored in ram's horns, and elastic expansion material can store a large amount of gas, can not take too much space simultaneously; In addition, when ram's horns generation elastic strain, can cooling liquid be stirred, promote heat radiation.

As preferably, in described cooling liquid, be added with antifreeze; So that expand the Applicable temperature scope of this outlet pipe, be convenient to use in cold area.

As preferably, the periphery wall of described cooling tube is provided with radiating fin; So that the heat radiation of accelerating cooling pipe.

Accompanying drawing explanation

Fig. 1 is the structural representation of this vibration damping cooled exhaust pipe embodiment.

Fig. 2 is the vertical section structure schematic diagram of middle vibration damping pipe embodiment illustrated in fig. 1.

Fig. 3 is the end-face structure schematic diagram of middle vibration damping pipe embodiment illustrated in fig. 1.

Embodiment

In embodiment shown in Fig. 1 to Fig. 3, this vibration damping cooled exhaust pipe includes purifier 1, silencing apparatus 2, air pipe 3 and vibration damping pipe 4; Described air pipe 3 is connected to the outlet side of motor, and described air pipe 3 is provided with vibration damping pipe 4, purifier 1, silencing apparatus 2 successively; Described vibration damping pipe 4 is connected by two airtight bearings 5 with described air pipe 3, and described vibration damping pipe 4 and the coaxial and described vibration damping pipe 4 of described air pipe 3 freely can rotate along own axes; The inner circle wall of described vibration damping pipe 4 is carved with spiral stream guidance groove, as shown in dotted line oblique in Fig. 2; Described vibration damping pipe 4 is also installed with the high pressure one-way exhaust valve 41 running through vibration damping pipe 4 tube wall and low pressure breather cheek valve 42, described high pressure one-way exhaust valve 41 and low pressure breather cheek valve 42 are by ram's horns 43 conducting, and described ram's horns 43 is made by elastic expansion pipe; Also airtightly in the outside of described vibration damping pipe 4 be arranged with the cooling tube 6 be fixed on air pipe 3, the periphery wall of described cooling tube 6 is provided with radiating fin 61; In described cooling tube 6, be filled with cooling liquid, in described cooling liquid, be added with antifreeze.

Described high pressure one-way exhaust valve 41 refers to that the gas in vibration damping pipe 4 flows out from high pressure one-way exhaust valve 41 when the air pressure height in vibration damping pipe 4 is open to high pressure one-way exhaust valve 41 during certain numerical value; In like manner, described low pressure breather cheek valve 42 refers to be opened to low pressure breather cheek valve 42 during certain numerical value when the air pressure in vibration damping pipe 4 is low, and gas flows to from low pressure breather cheek valve 42; Working principle of the present invention is as follows: after tail gas flows into outlet pipe from motor, enter vibration damping pipe 4 at first, the tail gas of high temperature is rotating and flows through and transfer heat to vibration damping pipe 4 under the drainage of spiral stream guidance groove, swiftly flowing tail gas reacts on vibration damping pipe 4, makes vibration damping pipe 4 along own axis; Vibration damping pipe 4 transfers heat to cooling liquid, simultaneously by self Stirring cooling liquid, makes cooling liquid rapid mixing even, accelerates heat radiation; Heat is delivered to cooling tube 6 and by radiating fin 61 quick heat radiating vehicle when fast running by the cooling liquid that heat absorption heats up, outlet pipe ambient air flow velocity is fast, therefore radiating fin 61 and surrounding atmosphere realize thermoconvection fast, therefore have good radiating effect.

Due to the discharge that tail gas is pulse feature, namely high pressure exhaust gas, low-pressure tail gas are alternately discharged; When high pressure exhaust gas flows through high pressure one-way exhaust valve 41, high pressure one-way exhaust valve 41 is opened, and the part in tail gas enters ram's horns 43 buffer memory; In the present embodiment, ram's horns 43 adopts elastic expansion pipe to make, after high pressure exhaust gas enters ram's horns 43, ram's horns 43 volumetric expansion, coolant flow in further promotion cooling tube 6, thus play auxiliary cooling, thermolysis, elastic expansion pipe small volume when not using simultaneously, too much volume can not be taken, make outlet pipe entire normalization, attractive in appearance; When low-pressure tail gas flows through low pressure breather cheek valve 42, low pressure breather cheek valve 42 is opened, and the tail gas in ram's horns 43 adds in low-pressure tail gas; Exhaust gas flow direction is as shown in two kinds of arrows in Fig. 2, Fig. 3; This structure can effectively in and high pressure exhaust gas and low-pressure tail gas, make the tail gas stable gas pressure of discharging from motor, thus effectively weaken the vibration of outlet pipe.

In addition, the antifreeze be added in cooling liquid can expand the Applicable temperature scope of this outlet pipe, even if in winter of cold and low temp area, outlet pipe also can normally use; Structure of the present invention is simple, low cost of manufacture, improves, effectively improves the vibration of outlet pipe, have good radiating effect simultaneously from the source of exhaust pipe vibrations.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a vibration damping cooled exhaust pipe, this vibration damping cooled exhaust pipe includes purifier (1), silencing apparatus (2), air pipe (3) and vibration damping pipe (4); Described air pipe (3) is connected to the outlet side of motor, and described air pipe (3) is provided with described vibration damping pipe (4), purifier (1), silencing apparatus (2) successively; It is characterized in that: described vibration damping pipe (4) is connected by two airtight bearings (5) with described air pipe (3), described vibration damping pipe (4) and the coaxial and described vibration damping pipe (4) of described air pipe (3) freely can be rotated along own axes; The inner circle wall of described vibration damping pipe (4) is carved with spiral stream guidance groove; Described vibration damping pipe (4) is also installed with the high pressure one-way exhaust valve (41) running through vibration damping pipe (4) tube wall and low pressure breather cheek valve (42), and described high pressure one-way exhaust valve (41) and low pressure breather cheek valve (42) are by ram's horns (43) conducting; Also airtightly in the outside of described vibration damping pipe (4) be arranged with the cooling tube (6) be fixed on air pipe (4), in described cooling tube (6), be filled with cooling liquid.

2. vibration damping cooled exhaust pipe according to claim 1, is characterized in that: described ram's horns (43) is made by elastic expansion pipe.

3. vibration damping cooled exhaust pipe according to claim 1 and 2, is characterized in that: in described cooling liquid, be added with antifreeze.

4. vibration damping cooled exhaust pipe according to claim 3, is characterized in that: on the periphery wall of described cooling tube (6), be provided with radiating fin (61).