KR200305177Y1 - Apparatus for increasing torque and fuel efficiency using torque converter - Google Patents

Abstract

The present invention relates to a torque converter and a fuel economy increasing apparatus using a torque converter that improves acceleration performance by using a one-way clutch and planetary gears and parallel output torque converters installed in parallel. The present invention is a torque and fuel economy increasing apparatus connected to a plurality of torque converter, a first impeller driven by a rotational input shaft of the engine, a first turbine connected to the output shaft facing the first impeller and input to the automatic transmission, and the first A first torque converter having a first stator for increasing rotation of the first impeller; And a second torque converter having a second impeller connected to the first impeller, a second turbine connected to the output shaft, and a second stator for increasing rotation of the second impeller. The present invention increases the acceleration performance by installing a plurality of torque converters in parallel, and can adjust the driving force according to the driving resistance, thereby reducing the extra driving force and receiving a stronger torque through parallel connection between the input shaft and the turbine. There is an advantage.

Description

Apparatus for increasing torque and fuel efficiency using torque converter}

The present invention relates to a torque converter, more specifically, the torque converter and the torque converter to improve the acceleration performance by using a one-way clutch and planetary gear output in parallel with the torque converter installed in parallel, and to minimize the driving force of the torque converter It relates to an increasing device.

In general, the torque converter is a kind of fluid clutch that serves to transmit or block the power of the engine to the transmission in the automatic transmission vehicle.

The torque converter transmits power due to the slip of the fluid, but since the working fluid causes the engine to receive the load gradually, the power converter has a smooth power transmission. As shown in FIG. 1, the structure of the impeller 10 and the turbine ( 20) and the vane wheels of the stator 30 are contained in the housing 40, and filled with oil, which is a working fluid therein. In addition, the impeller 10 is connected to the crankshaft 50 of the engine (not shown), the turbine 20 is coupled to the input shaft 60 of the transmission (not shown) by a spline, the stator 30 is The stator shaft 70 fixed to the transmission case is provided via a one-way clutch 80.

However, such a torque converter has a problem that it is not possible to increase the gear ratio in consideration of the acceleration performance, and when the desired speed is reached after acceleration, the engine provides a constant driving force in order to maintain a constant speed, and thus in a vehicle having a constant running resistance There is a problem in that a loss of energy is generated by a certain margin driving force.

Therefore, in order to solve the above problems, the present invention installs a plurality of torque converters in parallel to increase the acceleration performance, to minimize the extra driving force generated during constant speed driving output using a torque converter that can increase the efficiency of energy It is an object to provide an increasing device.

1 is a cross-sectional view showing a conventional torque converter structure.

2 is a cross-sectional view showing the configuration of an output increasing apparatus using a torque converter according to the present invention.

(Explanation of symbols for the main parts of the drawing)

100: first torque converter 110: first impeller

120: first turbine 130: first stator

140: first turbine coupling member 150: one-way clutch

160: stator shaft 200: second torque converter

210: second impeller 220: second turbine

230: second stator 240: second turbine coupling member

250: one-way clutch 260: stator shaft

300 housing 310 input shaft

400: first output shaft 410: second output shaft

420: third output shaft 500: output shaft one-way clutch

600: Speed Planetary Gear

In order to achieve the above object, the present invention is a torque and fuel economy increasing apparatus is connected to a plurality of torque converter, the input shaft to which the rotation of the engine is input; A first torque converter having a first impeller driven by the input shaft, a first turbine connected to the output shaft facing the first impeller and input to an automatic transmission, and a first stator for increasing rotation of the first impeller. ; And a second torque converter having a second impeller connected to and driven by the first impeller, a second turbine connected to the output shaft, and a second stator for increasing rotation of the second impeller. It is done.

The output shaft may include a one-way clutch having an outer race connected to the first turbine and an inner race formed at an outer circumference of the output shaft; And a planetary gear having a ring gear connected to the second turban, a sun gear formed at an outer periphery of the output shaft, and a planetary carrier connected to the first stator shaft.

In addition, the output shaft cuts a predetermined portion of the shaft to form a first output shaft, a second output shaft and a third output shaft, the first output shaft and one side of the outer race is connected, the outer periphery of the outer race and the first turbine A one-way clutch to which the second output shaft and the inner race are connected; And one side of the second output shaft and the sun gear is connected, the other side of the third output shaft and the sun gear is connected, an outer circumference of the ring gear is connected with the second turbine, and a planetary carrier is connected to the first stator shaft. It is characterized in that the planetary gear is connected to.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the present invention.

2 is a cross-sectional view showing the configuration of a torque increasing apparatus using a torque converter according to the present invention. In FIG. 2, the first torque converter 100 and the second torque converter 200 are connected to the rotation input shaft 310 of an engine (not shown) by welding through the housing 300, and the first torque converter 100. Turbine 120 is connected to the one-way clutch 500 installed between the first output shaft 400 and the second output shaft 410, the turbine 220 of the second torque converter 200 is the second output shaft It is connected to the speed planetary gear 600 installed between the 410 and the third output shaft (420).

The first torque converter 100 is connected to an input shaft 310 through which a first impeller 110 is inputted by the rotation of the engine through the housing 300, and faces the first impeller 110, wherein the first impeller 110 is opposed to the first impeller 110. The first turbine 120 driven according to the rotation of the impeller 110 is connected to the output shaft one-way clutch 500 installed between the first output shaft 400 and the second output shaft 410 which will be described later through the coupling member 140. The first stator 130 that increases the rotation of the first impeller 110 is installed through the one-way clutch 150 on the stator shaft 160 fixed to the carrier of the planetary gear 600.

The second torque converter 200 is connected to the input shaft 310 to which the second impeller 210 is inputted by the rotation of the engine through the housing 300, and is opposed to the second impeller 210. The second turbine 220 driven by the rotation of the impeller 210 is connected to the speed planetary gear 600 installed between the second output shaft 410 and the third output shaft 420 to be described later through the coupling member 240. The second stator 230 increasing the rotation of the second impeller 210 is installed through the one-way clutch 250 on the stator shaft 260 fixed to the transmission case (not shown).

The housing 300 has one side connected by welding with an input shaft 310 to which the rotation of the engine (not shown) is output (for example, a crank shaft), and the other side of the housing 300 includes a first impeller of the first torque converter 100. The 110 is connected to the second impeller 210 of the second torque converter 200 by welding. That is, the first torque converter 100 and the second torque converter 200 are connected in parallel with the input shaft 310.

The first output shaft 400 cuts a predetermined portion of the output shaft to form a second output shaft 410, and the second output shaft 410 is disposed between the first output shaft 400 and the second output shaft 410. The output shaft one-way clutch 500 is installed to rotate in one direction, and cuts a predetermined portion of the second output shaft 410 to form a third output shaft 420, and the second output shaft 410 and the third The speed planetary gear 600 is installed to increase the rotation of the third output shaft 420 between the output shaft 420.

The output shaft one-way clutch 500 is composed of an outer race (not shown) and inner race (not shown), the outer race is connected to the first output shaft 400 by welding, the outer periphery of the outer race The first turbine 120 and the coupling member 140 is welded, the inner race is connected to the second output shaft 410 by welding. The one-way clutch 500 may use a sprag clutch or a roller clutch type, and is preferably a sprag clutch type.

The speed planetary gear 600 includes a planetary carrier (not shown) and a ring gear for supporting a sun gear (not shown) and small pinion gears. The outer circumference of the ring gear is coupled to the second turbine 220 and the coupling member. Welded through 240, the sun gear is connected to the second output shaft 410 and the third output shaft 420 by welding as an output shaft.

In addition, another embodiment for installing the one-way clutch 500 and the planetary gear 600 on the output shaft will be described.

The inner race of the one-way clutch 500 is formed on the outer circumference of the output shaft formed as one, and the sun gear of the planetary gear 600 is formed on the outer circumference of the output shaft to install the one-way clutch and the planetary gear on the output shaft without cutting the output shaft. do.

Next will be described the operation of the torque increasing device using a torque converter according to the present invention.

When the torque increasing device performs the acceleration rotation, when the input shaft 310 is rotated by the engine, the housing 300 connected to the input shaft 310 is rotated, and the first torque converter 100 connected to the housing 300 is rotated. The first impeller 110 and the second impeller 210 of the second torque converter 200 also rotate together.

The first and second impellers 120 and 210 rotate at the same speed, and the first and second turbines 120 and 220 which face the first and second impellers 110 and 210 also rotate together. The output shafts 400, 410, and 420 are driven.

The first turbine 120 drives the first output shaft 400 and the second output shaft 410 by using the output shaft one-way clutch 500, the one-way clutch 500 is the rotation of the first turbine 120 When the speed is greater than or equal to the rotational speed of the second output shaft 410 When the power is transmitted to the second output shaft 410, the rotational speed of the first turbine 120 is less than or equal to the rotational speed of the second output shaft 410 The power transmitted to the second output shaft 410 is cut off.

In addition, the second turbine 220 rotates the speed planetary gear 600 to drive the second output shaft 410 and the third output shaft 420, and the third output shaft 420 is the speed planetary gear. Power is supplied from the second turbine 220 until it reaches a speed of rotation increased by 600.

On the other hand, when the torque increasing device reduces the number of revolutions of the engine after the acceleration rotation to make constant speed rotation, the third output shaft 420 is rotated faster than the rotation speed of the turbine due to the speed planetary gear 600, The second output shaft 410 also rotates at high speed. When the rotational speed of the second output shaft 420 is higher than the rotational speed of the first turbine 120, the first turbine 120 is idling by the output shaft one-way clutch 500.

In addition, the second turbine 220 rotates the planetary gear 600 so that the third output shaft 420 can rotate at an increased speed, and reduces the rotation at a rotation speed capable of constant speed driving.

In the above-described embodiment of the present invention, a configuration in which two torque converters are connected in parallel has been described. However, when two or more torque converters, for example, three or more torque converters are connected in parallel, an output shaft connected to a turbine of each torque converter may be used. It is composed as follows. The first turbine is connected to the one-way clutch installed between the first output shaft and the second output shaft, the second turbine is connected to the speed increasing planetary gear combined with the one-way clutch installed between the second output shaft and the third output shaft, and the third turbine is It is connected to the speed planetary gear installed between the third output shaft and the fourth output shaft. That is, by installing a one-way clutch with the planetary gear to cut off the low rotation output shaft, it is possible to expand the installation of the torque converter.

As described above, the present invention increases the acceleration performance by installing a plurality of torque converters in parallel, and by reducing the difference in the driving resistance by using the torque increase due to the speed difference between the impeller and the turbine can reduce the occurrence of the extra driving force. There is an advantage that can receive a stronger torque by parallel connection between the input shaft and the turbine.

In addition, there is an advantage that can increase the output torque to simplify, increase the transmission, there is an advantage that can be used as a continuously variable transmission through the multi-stage of the shift. In addition, although the planetary gear is used as the speed increasing means in the present invention, it is also possible to install other means for increasing speed (for example, a speed increaser using a spur gear, a helical gear, etc.).

In the above, the present invention has been shown and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It will be possible to carry out the change.

Claims (3)

A torque and fuel economy increasing device connected with a plurality of torque converters, An input shaft to which rotation of the engine is input; A first torque converter having a first impeller driven by the input shaft, a first turbine connected to the output shaft facing the first impeller and input to an automatic transmission, and a first stator for increasing rotation of the first impeller. ; And A second torque converter having a second impeller connected to the first impeller, a second turbine connected to the output shaft, and a second stator for increasing rotation of the second impeller are connected in parallel; Torque and fuel economy increasing device using a torque converter. According to claim 1, wherein the output shaft is an outer race is connected to the first turbine, the inner race is a one-way clutch formed on the outer periphery of the output shaft; And Increasing torque and fuel economy using a torque converter, characterized in that a ring gear is connected to the second turban, a sun gear is formed on the outer periphery of the output shaft, and a planetary gear is connected to the planetary carrier and the first stator shaft. Device. The output shaft of claim 1, wherein the output shaft cuts a predetermined portion of the shaft to form a first output shaft, a second output shaft, and a third output shaft, wherein the first output shaft and one side of the outer race are connected to each other, A one-way clutch to which the first turbine is connected and to which an inner race is connected to the second output shaft; And One side of the second output shaft and the sun gear is connected, the other side of the third output shaft and the sun gear is connected, the outer periphery of the ring gear is connected to the second turbine, the planet carrier is connected to the first stator shaft Torque and fuel economy increasing apparatus using a torque converter, characterized in that the planetary gear is connected.