CN211777698U

CN211777698U - Different-shaft speed-increasing turbocharger

Info

Publication number: CN211777698U
Application number: CN202020195737.4U
Authority: CN
Inventors: 郏政广
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-23
Filing date: 2020-02-23
Publication date: 2020-10-27
Anticipated expiration: 2030-02-23

Abstract

The utility model provides a different-shaft speed-increasing turbocharger, which comprises a pump air impeller, an air compressing impeller, a driving shaft, a driven shaft and a final shaft; the air pumping impeller drives a driving shaft at the right end to rotate; the two ends of the driving shaft are fixed with a floating bearing and a thrust bearing, and the right end of the driving shaft is fixed with a driving gear; the right end of the same horizontal plane of the driving shaft is provided with a final shaft; a floating bearing and a thrust bearing are fixed at two ends of the final shaft, and a final shaft gear is fixed at the left end of the final shaft; the right end of the final shaft is connected with a compressed air impeller; a driven shaft is fixed above the right end of the driving shaft and the left end of the final shaft; the two ends of the driven shaft are fixedly provided with floating bearings, and the inner sides of the two ends are respectively provided with a first driven gear and a second driven gear; the first driven gear is in meshed connection with the driving gear; the second driven gear is in meshed connection with the final shaft gear. The utility model discloses a gear transmission mode adjusts the rotational speed according to the engine and use turbocharger's characteristic, realizes the best function of engine.

Description

Different-shaft speed-increasing turbocharger

Technical Field

The utility model relates to a booster, concretely relates to different axle acceleration rate turbo charger.

Background

The existing turbocharger has slow response to sudden throttle change, when an engine is at low speed or idling, the turbocharger blade is limited by exhaust impact frequency, the rotating speed is insufficient, and sufficient intake pressure cannot be provided, on the contrary, an air compression end turbine blade becomes an intake block during rapid acceleration, so that sudden driving feeling is brought by turbine lag. And the driver is difficult to master and has difficult driving and even potential safety hazard for ordinary driving. The vane type turbocharger is extruded by the high rotating speed of the air compressing vanes to determine the air compressing amount, and the higher the rotating speed is, the higher the pressure is. When the engine is at low speed or idling, the exhaust gas of the engine is limited by the exhaust impact frequency,

the rotating speed of the turbocharger blade cannot reach higher, and the pumping gas and the gas compression turbine in the prior art are coaxially connected, so that the rotating speed of a gas compression end is limited.

Disclosure of Invention

To the weak point among the prior art, the utility model provides a different axle acceleration rate turbo charger. The utility model has the characteristics of turbine speed is fast, can provide higher intensive air and supply the combustion chamber to use.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

a different-shaft speed-increasing turbocharger comprises a pump air impeller, an air compressing impeller, a driving shaft, a driven shaft and a final shaft; the right end of the air pumping impeller is fixedly connected with a driving shaft; floating bearings are respectively fixed on the inner sides of the two ends of the driving shaft; a thrust bearing is fixed on the outer side of one end of the driving shaft, which is connected with the air pumping impeller; a driving gear is fixed at the right side end of the driving shaft;

the right end of the same horizontal plane of the driving shaft is provided with a final shaft; the inner sides of the two side ends of the final shaft are fixed with floating bearings which are the same as the inner sides of the driving shafts; a thrust bearing is fixed on the outer side of the right end of the final shaft; a final shaft gear is fixed at the left end of the final shaft; the right end of the final shaft is connected with an air compressing impeller;

a driven shaft is fixed above the right end of the driving shaft and the left end of the final shaft; floating bearings are fixed on the outer sides of two ends of the driven shaft; a first driven gear and a second driven gear are respectively arranged on the inner sides of the two ends of the driven shaft; the first driven gear is in meshed connection with the driving gear; the second driven gear is in meshed connection with the final shaft gear.

Furthermore, the number of the first driven shaft gears is less than that of the driving gears, so that the first secondary speed change is convenient to realize.

Furthermore, the number of the second driven shaft gears is less than that of the first driven shaft gears, so that the second secondary speed change is convenient to realize.

Furthermore, two sides of the upper end of the driven shaft are communicated with a lubricating oil channel; the lubricating oil channel extends towards two ends and is communicated with the left end of the driving shaft and the right end of the final shaft respectively; and oil outlet channels are communicated with two sides of the lower end of the driven shaft and are communicated with the lubricating oil channel.

Further, a horizontal air inlet is formed in the right end of the air compressing impeller; a pressure relief valve is arranged at the position of the upward extending channel of the air inlet; an air inlet pipe connected with the engine is arranged above the air compressing impeller, and high pressure is generated, so that air with higher density can be supplied to the combustion chamber for use.

Furthermore, a waste gas exhaust port is formed above the pump gas impeller, so that waste gas can enter conveniently; the left end of the pump impeller is provided with an exhaust pipe, so that waste gas is conveniently discharged.

Has the advantages that: the utility model provides a different-shaft speed-increasing turbocharger, which enlarges the air pumping turbine and the air compression end to the air compression turbine by more than one time at the rotating speed; by adopting a gear transmission mode, the gear ratio can be adjusted according to the characteristics of the engine and the used turbocharger, so that the rotating speed ratio is adjusted, and the optimal working condition of the engine is achieved; when the engine starts to work, the air inlet pressure is enough, and the turbo lag is reduced; higher torque is obtained at lower rotational speeds to improve driving feel, thereby reducing insufficient combustion of the engine caused by instantaneous insufficient intake during rapid acceleration, improving fuel economy and reducing emissions.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of a variation structure of the present invention.

In the figure, 1-pump impeller, 2-driving shaft, 3-floating bearing, 4-thrust bearing, 5-driven shaft, 6-driving gear, 7-first driven gear, 8-second driven gear, 9-final shaft, 10-final shaft gear, 11-pressure relief valve and 12-compressor impeller.

Detailed Description

The present invention is described below with reference to specific examples. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention in any way.

A different-shaft speed-increasing turbocharger is shown in figures 1 and 2 and comprises a pumping impeller (1), a compressing impeller (12), a driving shaft (2), a driven shaft (5) and a final shaft (9); the right end of the air pumping impeller (1) is fixedly connected with a driving shaft (2); floating bearings (3) are respectively fixed on the inner sides of the two ends of the driving shaft (2); a thrust bearing (4) is fixed on the outer side of one end of the driving shaft (2) connected with the pump impeller (1); a driving gear (6) is fixed at the right end of the driving shaft (2);

the right end of the same horizontal plane of the driving shaft (2) is provided with a final shaft (9); the inner sides of the two side ends of the final shaft (9) are fixed with floating bearings (3) which are the same as the inner sides of the driving shafts (2); a thrust bearing (4) is fixed on the outer side of the right end of the final shaft (9); a final shaft gear (10) is fixed at the left end of the final shaft (9); the right end of the final shaft (9) is connected with a compressed air impeller (12);

a driven shaft (5) is fixed above the right end of the driving shaft (2) and the left end of the final shaft (9); the outer sides of two ends of the driven shaft (5) are fixed with floating bearings (3); a first driven gear (7) and a second driven gear (8) are respectively arranged on the inner sides of the two ends of the driven shaft (5); the first driven gear (7) is in meshed connection with the driving gear (6); the second driven gear (8) is in meshed connection with the final shaft gear (10).

The number of the first driven gears (7) is less than that of the driving gears (6), so that the first secondary speed change is convenient to realize.

The number of the second driven gears (8) is less than that of the first driven shaft gears (7), so that the second secondary speed change is convenient to realize.

Two sides of the upper end of the driven shaft (5) are communicated with a lubricating oil channel; the lubricating oil channel extends towards two ends and is communicated with the left end of the driving shaft (2) and the right end of the final shaft (9) respectively; two sides of the lower end of the driven shaft (5) are communicated with oil outlet channels which are communicated with the lubricating oil channels.

The right end of the air compressing impeller (12) is provided with a horizontal air inlet; a pressure relief valve (11) is arranged at the position of the upward extending channel of the air inlet; an air inlet pipe connected with an engine is arranged above the air compressing impeller (12), and high pressure is generated, so that air with higher density can be supplied to a combustion chamber for use.

A waste gas exhaust port is arranged above the pump impeller (1) so as to facilitate the entry of waste gas; the left end of the pump impeller is provided with an exhaust pipe, so that waste gas is conveniently discharged.

The utility model discloses a theory of operation:

high-pressure waste gas generated by an engine pushes a pump gas impeller (1) to rotate, a driving shaft (2) is in hard connection with the pump gas impeller (1) to drive the driving shaft (2) to rotate, both ends of the driving shaft (2) are provided with floating bearings (3) and thrust bearings (4), the driving shaft (2) is provided with a driving gear (6), the driving shaft gear (6) is in meshing connection with a driven shaft gear, the driven shaft gear drives a first driven gear (7) with the floating bearings at both ends to start rotating, the number of teeth of the first driven gear (7) is less than that of the driving gear (6), first secondary speed change is realized, the other end of the driven shaft (5) is provided with a second driven gear (8) with more teeth than the first driven gear (7) and is in meshing connection with a final shaft gear (10) with less teeth than the driven shaft (5), second secondary speed change is realized, and a final shaft (9) is, the final rotational speed of the shaft (9) is higher than the rotational speed of the drive shaft (2). And the other end of the final shaft (9) is provided with a compressed air turbine impeller, and the rotating compressed air impeller extrudes fresh air coming from the air filter element to an air inlet pipe of the engine to generate high pressure so as to provide air with higher density for a combustion chamber.

Claims

1. The utility model provides a different axle acceleration rate turbo charger which characterized in that: comprises a pump air impeller, an air compressing impeller, a driving shaft, a driven shaft and a final shaft; the right end of the air pumping impeller is fixedly connected with a driving shaft; floating bearings are respectively fixed on the inner sides of the two ends of the driving shaft; a thrust bearing is fixed on the outer side of one end of the driving shaft, which is connected with the air pumping impeller; a driving gear is fixed at the right side end of the driving shaft;

2. The iso-turbo supercharger according to claim 1, wherein the number of gears of the first driven shaft is smaller than the number of gears of the driving shaft.

3. The iso-turbo supercharger according to claim 1, wherein the number of gears of the second driven shaft is smaller than the number of gears of the first driven shaft.

4. The different-shaft speed-increasing turbocharger according to claim 1, wherein lubricating oil channels are communicated with two sides of the upper end of the driven shaft; the lubricating oil channel extends towards two ends and is communicated with the left end of the driving shaft and the right end of the final shaft respectively; and oil outlet channels are communicated with two sides of the lower end of the driven shaft and are communicated with the lubricating oil channel.

5. The iso-axial turbo charger according to claim 1, wherein a horizontal air inlet is provided at a right end of the compressor impeller; a pressure relief valve is arranged at the position of the upward extending channel of the air inlet; an air inlet pipe connected with the engine is arranged above the air compressing impeller.

6. The iso-axial turbo charger according to claim 1, wherein an exhaust gas discharge port is provided above the pump impeller; the left end of the pumping impeller is provided with an exhaust pipe.