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Novel double-turbine hydraulic torque converter

A hydraulic torque converter, twin-turbo technology, applied in the direction of belt/chain/gear, fluid transmission, mechanical equipment, etc., can solve the problem of high engine fuel consumption, reduce loader reliability, power performance and fuel economy , affecting the performance of the whole machine, etc., to achieve the effects of excellent fuel economy, reasonable torque, and improved reliability

Active Publication Date: 2014-02-19
柳工柳州传动件有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nominal torque of the pump wheel of the twin-turbine hydraulic torque converter is too high, which means that the power transmitted by the torque converter is too large, resulting in too large torque output to the gearbox, and the large stall torque ratio also means that the output of the torque converter to The increased torque of the gearbox makes the strength of the gearbox not meet the requirements, and the low efficiency of the torque converter means that the torque converter cannot convert the power output by the diesel engine well and output it to the gearbox. These three points will cause the engine to High fuel consumption reduces the reliability, power performance and fuel economy of the loader, greatly affecting the performance of the whole machine

Method used

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  • Novel double-turbine hydraulic torque converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The diameter of the circulation circle is 288mm; the inlet angle of the streamline in the middle of the pump impeller blade is β p1 =116°~120°, the outlet angle of the middle streamline is β p2 =70°~75°, the thickness H of the inlet edge of the middle annulus p1 =4.80~5.00mm, thickness H of the outlet edge of the middle annulus p2 =3.20~3.50mm; the inlet angle of the I-stage turbine blade is β 1 =88°~92°, the outlet angle is β 2 =148°~151°, round head radius R at the inlet side 1 =4.60~4.90mm, round head radius R at the exit side 2 =0.90~1.10mm; the inlet angle of the middle streamline of the II-stage turbine blade is β 1 =55°~60°, the outlet angle of the middle streamline is β 2 =130°~136°, the thickness H of the inlet side of the middle annulus II1 =3.00~3.50mm, the thickness H of the outlet edge of the middle annulus II2 =1.50~1.80mm; the inlet angle of the guide wheel blade is β s1 =76°~80°, the outlet angle is β s2 =30°~35°, round head radius ...

Embodiment 2

[0027] The diameter of the circulation circle is 290mm; the inlet angle of the streamline in the middle of the pump impeller blade is β p1 =112°~115°, the outlet angle of the middle streamline is β p2 =76°~77°, the thickness H of the inlet side of the middle annulus p1 =5.00~5.30mm, the thickness of the outlet edge of the middle annulus H p2 =3.10~3.40mm; the inlet angle of the I-stage turbine blade is β 1 =96°~98°, the outlet angle is β 2 =148°~149°, round head radius R at the inlet side 1 =5.20~5.50mm, round head radius R at the exit side 2 =0.80~1.00mm; the inlet angle of the middle streamline of the II-stage turbine blade is β 1 =56°~58°, the outlet angle of the middle streamline is β 2 =135°~140°, the thickness H of the inlet side of the middle annulus II1 = 3.10~3.40mm, thickness H of the outlet edge of the middle annulus II2 = 1.90~2.20mm; the inlet angle of the guide wheel blade is β s1 =75°~77°, the outlet angle is β s2 =32°~34°, round head radiu...

Embodiment 3

[0030] The diameter of the circulation circle is 295mm; the inlet angle of the streamline in the middle of the pump impeller blade is β p1 =105°~110°, the outlet angle of the middle streamline is β p2 =77°~80°, the thickness H of the inlet side of the middle annulus p1 =4.90~5.10mm, thickness H of the outlet edge of the middle annulus p2 =2.80~3.10mm; the inlet angle of the I-stage turbine blade is β 1 =90°~96°, the outlet angle is β 2 =150°~155°, round head radius R at the inlet side 1 =5.30~5.60 mm, round head radius R at the exit side 2 =0.90~1.20 mm; the inlet angle of the streamline in the middle of the stage II turbine blade is β 1 =59°~65°, the outlet angle of the middle streamline is β 2 =135°~138°, the thickness H of the inlet side of the middle annulus II1 =2.90~3.20 mm, thickness H of the outlet edge of the middle annulus II2 =2.00~2.30 mm; the inlet angle of the guide wheel blade is β s1 =72°~76°, the outlet angle is β s2 =34°~38°, round head ...

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Abstract

The invention provides a novel double-turbine hydraulic torque converter which is characterized in that the circulating circle diameter D is equal to 288-295mm. In a blade grid system, an intermediate flow line inlet angle beta p1 of a pump impeller blade is equal to 105 degrees-120 degrees, an intermediate flow line outlet angle beta p2 of the pump impeller blade is equal to 70 degrees-80 degrees, the intermediate ring surface inlet side thickness Hp1 of the pump impeller blade is equal to 4.8-5.8mm, and the intermediate ring surface outlet side thickness Hp2 of the pump impeller blade is equal to 2.5-3.5mm; an inlet angle beta1 of a primary turbine blade is equal to 88 degrees-98 degrees, an outlet angle beta2 of the primary turbine blade is equal to 148 degrees-155 degrees, the inlet side round head radius R1 of the primary turbine blade is equal to 4.6-5.6mm, and the outlet side round head radius R2 of the primary turbine blade is equal to 0.8-1.2mm; an intermediate flow line inlet angle beta1 of a secondary turbine blade is equal to 55 degrees-65 degrees, an intermediate flow line outlet angle beta2 of the secondary turbine blade is equal to 130 degrees-140 degrees, the intermediate ring surface inlet side thickness H1 of the secondary turbine blade is equal to 2.5-4.0mm, and the intermediate ring surface outlet side thickness H2 of the secondary turbine blade is equal to 1.5-2.5mm; and an inlet angle betas1 of a guide wheel blade is equal to 72 degrees-80 degrees, an outlet angle betas2 of the guide wheel blade is equal to 30 degrees-38 degrees, the inlet side round head radius Rs1 of the guide wheel blade is equal to 8.8-9.5mm, and the outlet side round head radius Rs2 of the guide wheel blade is equal to 0.6-1.0mm. The novel double-turbine hydraulic torque converter has the advantage that efficiency of a first peak reaches 0.78-0.81, efficiency of a second peak reaches 0.796-0.829, stall torque ratio is 4.05-4.15, pump impeller nominal torque under stall working conditions is 75-80N-m, and reliability, power performance and fuel economy of a whole machine are improved.

Description

technical field [0001] The invention relates to a twin-turbine hydraulic torque converter applied to engineering machinery, in particular to a twin-turbine hydraulic torque converter applied to loaders. Background technique [0002] In recent years, with electronics and information technology as the forerunner, a large number of researches have been carried out on computer fault diagnosis and monitoring, precise positioning and operation, diesel engine fuel combustion control and ergonomics. Significant progress has been made in the automatic control of the fuel injection system for diesel engines, the automatic control of gear shifting in gearboxes, performance parameters and status monitoring. These breakthroughs in research work have improved the performance, reliability, and productivity of loaders, reduced fuel consumption, and achieved significant economic benefits. [0003] Loaders have become an important earthwork construction machine because of their convenient a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H41/04F16H41/26
CPCF16H41/24F16H41/26
Inventor 王松林詹家堂章勇华周文晓
Owner 柳工柳州传动件有限公司
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