SU821825A1 - Torque converter - Google Patents

Description

one

The invention relates to power engineering and can be used in hydrodynamic transmissions of construction and road machines.

Known torque converter containing centrifugal pumping, centripetal turbine and gear wheels with blades having input and output edges l.

However, in such torque converters, the transformation ratio is low on the moving mode and is equal to, 0–4.0, with a reverse transparency factor of not more than 1.2.

The purpose of the invention is to increase the transformation ratio to the moving mode for a torque converter with a large reverse transparency.

This goal is achieved by the fact that the ratios of the output radii of the NiOK blades along the centerline of the current of the turbine and the reactor and the reactor and the nass are respectively 1.1: 1.3 and 0.54: 0.66.

The angles of inclination of the output edges of the blades of the pump, turbine, and reactor along the centerline of the current, respectively, are determined from the relations:

Gche

B 4,174-2,950 - ± 0,070

12

(2 yr-y

 3.250-0.953 - ± 0.035 1.4886-1.946 ± 0.035.,

the angle of inclination of the input edge of the reactor blade - from the ratio:

B, 3.550-2.515 1 0.087,

de In - the angle of the output edges of the pump blades,

g. - the radius of the output edges of the blades of the reactor /

 - radius of the output edge of the pump blades}

V. - the angle of inclination of the output edge of the turbine blades;

fjj is the radius of the output edge of the turbine blades /

V., - the angle of inclination of the output edge of the reactor blades;

 radius of the output edge of the reactor blades.

 input edge inclination angle

reactor blades.

FIG. 1 shows a torque converter, a longitudinal section; on fn1.2 scan blades wheels.

The bifurcated transformer includes centrifugal pumping 1, centripetal turbine 2 and reactor 3 wheels with blades 4.5, respectively, with input 7.8.i9 and output 10, 11 and 12 edges. The drawing also shows all specified dimensions and angles.

The torque converter works as follows.

The mechanical energy in the pumping wheel 1 is converted into the hydraulic energy of the working fluid, which moves in the flow section formed by the pump, turbine and reactor wheels 1, 2 and 3. In the turbine wheel 2, the hydraulic energy is converted into mechanical energy.

The proposed ratio of the radii of the wheels and the angles of inclination of the output crm of the pump, turbine and reactor blades provide a high transformation ratio in the mode of moving with a high inverse transparency factor of 1.4-1.5.

Claims (2)

1. A torque converter containing centrifugal pumping, centripetal turbine and reactor wheels with blades having inlet and outlet edges, characterized in that, in order to increase the transformation ratio on the starting mode for torque converters with large reverse transparency, the ratio of output radii the edges of the blades in the centerline of the current of the turbine and the reactor and the reactor and pump are respectively 1.1: 1.3 and 0.54: 0.66. 2. A torque converter according to claim 1, characterized in that the angles of inclination of the output edges of the blades of the pump, turbine and reactor along the centerline of the current are respectively determined from the relations: Ji2   4,174 - 2,950 ± 0,070 2 GTA + 0.035 3.250 - 0.953 g, 1,486 - 1,946 - g ± 0,035, 32 - (2 the angle of inclination of the input edge of the reactor blade - from the ratio: B 3,550 - 2,515-g + 0.087 е. - angle of inclination of the output edge of the pump blades, - radius of the output edge of the reactor blades; radius of the output edge of the pump; 22 tilt angle of the output edge of the turbine blades the radius of the output edge of the turbine blades; the angle of inclination of the output edge of the reactor blades; the radius of the output edges of the blades of the reactor;   slope of the input edge of the reactor blades. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 459630, cl. F 16 H 41/26, 1973. pump mgpSuHo ptantrtop