CN201133282Y

CN201133282Y - Double flow path turbo-charger

Info

Publication number: CN201133282Y
Application number: CNU2007201851586U
Authority: CN
Inventors: 康明飞; 赵治恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-25
Filing date: 2007-12-25
Publication date: 2008-10-15
Anticipated expiration: 2017-12-25

Abstract

A double-channel turbocharger comprises a turbine installation, an intermediate body and a gas compressor. The turbine installation comprises a volute casing, a turbine, an axle and vanes. The turbine is mounted at the front end of the axle and is connected with the axle as a whole by welding. The inside of a turbine casing is provided with double flow passages which are No. 1 channel and No. 2 channel, the internal cavities of which are the shape like a pear. The turbine is provided with a plurality of vanes, and the turbine is the mixed flow form. The intermediate body is fixedly connected with the volute casing by a screw. The middle part of the axle is provided with two floating bearings which are arranged at the two ends of the intermediate body and are embedded in the bearing base holes of the intermediate body. An air compressor casing and the intermediate body are fixedly connected by a bolt. The utility model is designed scientifically, is creative, improves the efficiency of the engine and reduces the exhaust of the exhaust gas of the engine, which has strong practicability, simple, compact and rigorous whole structure, few material consumption, low cost, stable and reliable performance and convenient maintenance and is fit for being used with an engine.

Description

The double flow channel turbosupercharger

Technical field

The utility model relates to engine supercharger, concrete is under High Temperature High Pressure and environment mal-condition still can stable operation a kind of dynamical turbosupercharger.

Background technique

Along with science and technology development, greatly promoted the development and the raising of motor industry, the pressure-increasing machine that also making accordingly matches with motor uses also constantly upgrades and is developed faster.Though the air intake pressurized of motor is a mature technique comparatively, the kind of pressurized machine also is varied, however under the condition of concrete environment and use, the work that pressurized machine can not be reliable and stable sometimes, so that can not export maximum power.Be generally and improve the way that air inflow and suction pressure have to take to increase supercharger speed, so that number of moving part reaches more than 60,000 rev/mins, add in the ambient temperature that is operated in several Baidu, this not general pressurized machine can bear.

Do not have air inflow big at present as yet, suction pressure is also big, can adapt to the pressurized machine in high temperature, the work of high-pressure working condition condition.

Summary of the invention

The purpose of this utility model should not be moved under the environment of High Temperature High Pressure for the pressurized machine that solves present use, air inflow is little, the problem that suction pressure is not high yet, and provide revolution to reach more than 70,000 rev/mins, air inflow is big, the efficient height, the double flow channel turbosupercharger of working under severe environmental conditions suits.

The technological scheme that adopts is:

The double flow channel turbosupercharger comprises turbo machine, intermediate, gas compressor.Described turbo machine comprises volute, turbine, wheel shaft, blade, turbine is sleeved on the front end of wheel shaft, be integral by being welded to connect, in the wheel shaft front portion one thermal baffle is set, thermal baffle is between turbine and intermediate, intermediate and volute are bolted to connection, intermediate is installed in the outside of wheel shaft intermediate portion, the wheel shaft intermediate portion is provided with two floating bearings, two floating bearings are positioned at the two ends of intermediate, and are embedded in the bearing saddle bore of intermediate, and a thrust bearing is installed at the wheel shaft rear portion, thrust bearing is replaced mutually with thrust ring, and thrust bearing is arranged in the thrust shaft block hole of compressor casing front end; Compressor casing is connected by bolton with intermediate, and its structure outline is:

Be provided with double flow channel in the described turbine case, i.e. 1# runner, 2# runner, the inner chamber of 1# runner, 2# runner is a pear shape.

Described turbine is provided with a plurality of blades, and the top of a plurality of blades is to a direction bending, and turbine is the mixed-flow structure.

Working principle and characteristics:

There are turbo machine and gas compressor in the front and back of double flow channel turbosupercharger, the suction port of turbo machine links to each other with pressurized machine engine exhaust pipe outward, the gas that has certain pressure that motor is discharged is injected on the blade of turbo machine with the form of air-flow, because of the blade top of turbo machine to a direction bending, turbine becomes mixed-flow.Be stressed big, be subjected to force direction also even.Be injected in gas on the turbine bucket and make turbo machine be quickened to rotate, rotate thereby drive gas compressor, the waste gas that is ejected into behind the blade is discharged from the outlet pipe of equipment outside the pressurized machine is linked in the turbo machine air outlet.The import of gas compressor links to each other with air-strainer pipeline outside the pressurized machine, the very fast rotation of gas compressor just is drawn into fresh air endlessly from air-strainer like this, blower outlet links to each other with engine air inlet tube, fresh air compresses through gas compressor, endlessly pressurized gas is sent in the motor again.When engine speed speeds, the waste gas velocity of discharge increases, secondary speed also speeds synchronously, gas compressor will compress more air and enter cylinder, the pressure of air and density increase the more fuel that can burn, and fuel combustion gets more abundant, has improved combustion efficiency, increase the rotating speed of motor, improved the delivery efficiency of motor.Both save fuel oil, reduced the pollution of tail gas again.

CJ150 double flow channel turbosupercharger is installed on the 12V190-2 gas engine, and motor utilizes the gas in colliery to generate electricity as the energy.The volute of double flow channel turbosupercharger is the pyriform double flow channel, make being ejected on the turbine of the extremely small smoothness of waste gas resistance that motor discharges, again because of the mixed flow structure of turbine blade, waste gas can be ejected on the turbine from tangent line and axial direction, thereby reach maximum running torque, the mixed flow structure of blade not only can be accepted the gas of tangent direction, and turbine still can normal rotation to the turbine in the gas blowing of horizontal or vertical direction.The double flow channel turbosupercharger has adopted floating bearing, owing to have fluid to do cooling between bearing and body inwall, i.e. and " wholly floating bearing ".Its working speed can reach more than 80,000 rev/mins, can be to move in the above environment of six, 700 degree in ambient temperature, improved the design of pressurized machine volute flow passage, adopted the form of double flow channel volute and mixed flow turbine, reduced the resistance of waste gas in volute flow passage of motor so widely, increased the discharge value of gas, the power that is injected on the turbine bucket has been increased greatly, thereby improved efficiency of turbocharger widely.Owing to implemented the best design of mixed flow turbine and double flow channel volute simultaneously, thereby increased the suction pressure and the air inflow of motor, also improved the whole efficiency of motor.

The characteristics of this turbosupercharger are:

1 has selected enough resistant to elevated temperatures high-quality material (turbine has been selected the K418 material for use) processing and fabricatings for use, has guaranteed that pressurized machine long-time continuous under high temperature and high pressure environment runs up.

2 have adopted advanced process equipment and accurate detection means to guarantee the machining high-precision of component.

3 turbosupercharger seal points have adopted seal ring to add cushion rubber and have sealed, and sealability is superior, and leakage phenomenon had not taken place in long-time use.

4 working process advanced persons adopt computer control, and the dynamic balance accuracy of rotor assembly is reached in the 0.001mm.

5 is last by stand test, whole technical performances of complete machine check pressurized machine.

The utility model design science, reasonable, original, the suction pressure and the air inflow that have increased motor, thus make fuel combustion more abundant, improve the efficient of motor, reduced the discharging of engine exhaust, practicability is stronger, has replaced the inlet plenum device.Overall structure is simple, compact, tight, and consumptive material is few, and is with low cost, stable performance, reliable, easy to maintenance, and the utility model suits and the supporting use of motor.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a turbocharger housing structure schematic representation of the present utility model.

Fig. 3 is that the A-A of Fig. 2 is to cross-sectional schematic.

Fig. 4 is that the B-B of Fig. 2 is to cross-sectional schematic.

Fig. 5 is that the C-C of Fig. 2 is to cross-sectional schematic.

Fig. 6 is a wheel axle structure schematic representation of the present utility model.

Fig. 7 is that the D-D of Fig. 6 is to cross-sectional schematic.

Embodiment

The double flow channel turbosupercharger comprises turbo machine, intermediate 4, gas compressor.Described turbo machine comprises volute 1, turbine 2, wheel shaft 11, blade 12, turbine 2 is sleeved on the front end of wheel shaft 11, is integral by being welded to connect, and is provided with

double flow channel

13 and 14 in the volute 1, be 1

# runner

13,2# runner 14, the inner chamber of 1

# runner

13,2# runner 14 is a pear shape.Turbine 2 is provided with the top of 12,12 blades 12 of 12 blades to a direction bending, and turbine is the mixed-flow structure.

In wheel shaft 11 front portions one thermal baffle 3 is set, thermal baffle 3 is between turbine 2 and intermediate 4, intermediate 4 is bolted to connection with volute 1, intermediate 4 is installed in the outside of the intermediate portion of wheel shaft 11, the intermediate portion of wheel shaft 11 is provided with two floating bearings 6, two floating bearings 6 are positioned at the two ends of intermediate 4, and be embedded in the bearing saddle bore 5 of intermediate 4, a thrust bearing 10 is installed at the rear portion of wheel shaft 11, thrust bearing 10 is replaced mutually with thrust ring 7, and thrust bearing 10 is arranged in the thrust shaft block hole 9 of compressor casing 8 front ends; Compressor casing 8 and intermediate 4 are connected by bolton.

Claims

1, the double flow channel turbosupercharger comprises turbo machine, intermediate (4), gas compressor; Described turbo machine comprises volute (1), turbine (2), wheel shaft (11), blade (12); Turbine (2) is sleeved on the front end of wheel shaft (11), be integral by being welded to connect, in wheel shaft (11) front portion one thermal baffle (3) is set, thermal baffle (3) is positioned between turbine (2) and the intermediate (4), intermediate (4) is bolted to connection with volute (1), intermediate (4) is installed in the outside of the intermediate portion of wheel shaft (11), the intermediate portion of wheel shaft (11) is provided with two floating bearings (6), two floating bearings (6) are positioned at the two ends of intermediate (4), and be embedded in the bearing saddle bore (5) of intermediate (4), a thrust bearing (10) is installed at the rear portion of wheel shaft (11), thrust bearing (10) is replaced mutually with thrust ring (7), and thrust bearing (10) is arranged in the thrust shaft block hole (9) of compressor casing (8) front end; Compressor casing (8) is connected by bolton with intermediate (4), it is characterized in that:

Be provided with double flow channel (13) and (14) in the described volute (1), i.e. 1# runner (13) and 2# runner (14), the inner chamber of 1# runner (13) and 2# runner (14) is a pear shape;

Described turbine (2) is provided with a plurality of blades (12), and the top of a plurality of blades (12) is to a direction bending, and turbine (2) is the mixed-flow structure.