SU1499022A1 - Torque converter - Google Patents

Abstract

The invention can be used in the creation and operation of hydrodynamic transmissions. The purpose of the invention is to increase the volumetric efficiency and increase the durability of the torque converter by preventing overflow of the casing 1. The pump and turbine wheels 2, 3 and the reactor 4 form a circulation circle. Labyrinth seal 5 is formed between reactor 4 and wheel 3. Channel 6 for supplying power is made in reactor 4. Channel 6 is connected to seal 5. Opposite to exit of channel 6, wheel 3 is provided with an annular groove 9. Power is supplied to meet the leakage of fluid from the circulating circle of To create a water seal, an annular groove 9 was introduced in order to distribute the supply pressure over the entire seal parameter 5. 2 Il.

Description

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The invention relates to power engineering and can be used in the creation and operation of hydrodynamic transmissions.

The purpose of the invention is to increase the volumetric efficiency and increase durability by preventing the torque converter body from overflowing.

FIG. 1 is a schematic diagram of a torque converter; in fig. 2, node I in FIG. one.

The torque converter includes a housing 1, a pumping wheel 2, a turbine wheel 3, a reactor 4, a labyrinth seal 5 formed together with a turbine wheel 3 and a reactor 4, a supply channel 6 made in the reactor 4, and a channel 7 for power removal. In this case, the output 8 of the channel 6 for supplying power is connected to the labyrinth seal 5, and an annular groove 9 is made opposite to the output 8 of the channel 6 in the turbine wheel 3.

The torque converter works as follows.

The pump wheel 2 rotates from a motor (not shown) at a steady speed. H /, driving a pump (not shown), which supplies fluid through channel 6 connected to the labyrinth seal 5 and ring groove 9, into the circulation circle ( not shown). Pumping wheel 2 as it rotates captures the fluid and gives it energy. After the pump wheel 2, the liquid enters the turbine wheel 3, together with the energy and causes it to rotate at a speed of 032. After the turbine wheel 3, the liquid enters the reactor 4, the purpose of which is to change the moment of the amount of fluid movement that enters the pump wheel 2. Thus, when the torque converter is operating, the fluid moves constantly in the circulation circle. From the circulation circle, the liquid is removed to the power supply system (not shown) through the channel made in reactor 4. The liquid is supplied and discharged through channels 6 and 7 continuously to cool it. When the torque converter is operating, the fluid also constantly flows from the circulating circle into the housing 1 through the labyrinth seal 5, and then from the housing 1 through the drain hole (not shown) enters the tank (not shown). Removing fluid through seal 5 reduces the volumetric efficiency of the torque converter, which is determined by the formula

 - ong

where Q is the fluid flow in the working plane; (/ ig - leakage from the working cavity.

The greater the leakage, the lower the volumetric efficiency. To reduce leakage, the gap in the labyrinth seal 5 must be very small (0.08-0.1 mm), which cannot be done due to the beating of the surfaces that form the gap in the labyrinths. With actually performed gaps (0.2-0.3 mm), the volumetric efficiency decreases by 2-3% and more leakage leads to overfilling of housing 1 (the liquid does not have time to flow by gravity from the housing to the tank), which leads to leakage

fluid through the seal of its shafts, leakage, which is unacceptable under technical conditions.

To eliminate these drawbacks in the proposed transmitter, channel 6, for

The power supply is connected to the labyrinth seal 5, i.e., the torque converter is powered to meet the leakage of fluid from the circulation circle through the seal 5.

In addition, an annular groove is introduced.

in order to distribute the supply pressure around the entire perimeter of the seal 5, since without it, it is impossible to create a hydraulic seal.

Claims (1)

Invention Formula A torque converter comprising a housing, a pumping wheel and a turbine wheel and a reactor forming a circulating circle labyrinth seal between the reactor and the turbine wheel, a power supply channel made in the reactor and a power supply channel, characterized in the durability of the torque converter; the output of the power supply channel is in communication with the labyrinth seal, with an annular groove made in front of the channel outlet in the turbine wheel. Shig.g