WO2005057050A1

WO2005057050A1 - Automatic gearbox with hydraulic pump

Info

Publication number: WO2005057050A1
Application number: PCT/PT2004/000027
Authority: WO
Inventors: Valeriy Vasylenko
Original assignee: Valeriy Vasylenko
Priority date: 2003-12-10
Filing date: 2004-11-22
Publication date: 2005-06-23
Also published as: PT9926T

Abstract

The present invention refers to the automatic gearbox with hydraulic pump, understanding a shift of values of the rotations between the first spindle (1 or 18), which is associated with the motor, and the second spindle (10 or 21), which is associated with the final transmission, from the complete demultiplication to maximum multiplication without any intervention to the gearwheels of the aforesaid gearbox. The aforesaid shift the values of the rotations between the aforesaid spindles (1, 10, or 18, 21) is achieved through the position of the synchronized valves (17). The aforesaid valves (17) control the passage of the oil between the cylinders of the hydraulic pump (14), this permits the control of the rotation of the gearwheel (6) or the piece (24) which makes the gearwheel (5 or 22) of the aforesaid second spindle (10 or 21) rotate with the necessary velocity. The present invention is applied in the production of gearboxes for vehicles and any other machines.

Description

Description "Automatic gearbox with hydraulic pump"

The present invention refers to the automatic gearbox with hydraulic pump, understanding a shift of values of the rotations between the first spindle and the second spindle of the aforesaid gearbox, where the aforesaid first spindle is gearing with the aforesaid second spindle by the differential which is connected with the hydraulic pump.

The aforesaid differential of the present invention may have a modernization form.

The present invention will be explained with more details and with assistance of the annexed drawings: the figure 1 presents the principal parts of the aforesaid gearbox where the principal gearwheel of the aforesaid differential is viewed with two partial cuts and the cylinders of the aforesaid hydraulic pump is viewed with a cut. With the broken lines are indicated some parts of the aforesaid gearbox when these parts are in other position. the figure 2 presents the aforesaid modernized differential in the cut by line A-B. - the figure 3 presents the aforesaid modernized differential where the gearwheel (20) is viewed with a cut by line C-D.

As you can see on figure 1, the aforesaid first spindle (1) has two gearwheels: the gearwheel ahead (2) and the gearwheel behind (3) . The aforesaid gearwheel (2) is in gear with the principal gearwheel of the differential (4) .

Inside the aforesaid gearwheel (4) contains the axle (7) with two gearwheels (8) and (9) which are free in rotation. The aforesaid gearwheels (8) and (9) are in gear with the gearwheels (5) and (6) . The aforesaid gearwheel (5) is placed on the aforesaid second spindle (10) .

As you can see on figure 1, the aforesaid gearwheel (6) is placed on the crankshaft (13) of the aforesaid hydraulic pump (14) . The aforesaid hydraulic pump (14) contains four cylinders with oil where the pistons (15) are to slide and are associated with the aforesaid crankshaft (13) by the piston-rods (16) .

As you can see on figure 1, the aforesaid pistons (15) are in these positions: the piston of the first cylinder (is beside of the aforesaid gearwheel (6) ) is in the upper dead-point, the piston of the second cylinder is in the lower dead-point, the pistons of the third and fourth cylinders are in the middle of the both dead-points. If the aforesaid crankshaft (13) turns one fourth of rotation (this position is not indicated on the drawings) the aforesaid pistons of the third and fourth cylinders occupy the upper and lower dead-points.

As you can see on figure 1, between the aforesaid first and second cylinders exist the gutter to permit the flux of oil. Between the aforesaid third and fourth cylinders exist an other gutter for the same reason.

As you can see on figure 1, the aforesaid gutters are closed by the synchronized valves (17), but the aforesaid gutters can be opened by the aforesaid valves (17) as indicate with the broken lines.

As you can see on figure 1, when the aforesaid gutters are opened the flux of oil runs free, that permits the rotary movement of the aforesaid crankshaft (13) freely without strain. In this moment the aforesaid gearbox is in complete desmultiplication state (the aforesaid first spindle (1) is in rotation and the aforesaid second spindle (10) is in still state) . When the aforesaid gutters progressively shut by the aforesaid valves (17) will begin to brake the motion of the aforesaid crankshaft (13), this is to obligate the energy of the rotation to pass through the aforesaid gearwheels (8) and (9) to the aforesaid gearwheel (5) . This process initiates rotation of the aforesaid second spindle (10) . When the aforesaid gutters are completely closed by the aforesaid valves (17) the aforesaid hydraulic pump (14) will be in still state. This makes the aforesaid gearbox reach maximum multiplication (for each rotation of the aforesaid gear-wheel (4) the aforesaid second spindle (10) rotates twice) .

As you can see on figure 1, the free gearwheel (12) can slide on the axle (11) till the gearing with the aforesaid gearwheels (3) and (5), as indicate with broken lines. This obligates the aforesaid second spindle (10) to turn in inverse direction, activating the reverse gear.

As you can see on figures 2 and 3, the first spindle (18) contains the gearwheel (19) which is gearing with the exterior side of the aforesaid gearwheel (20) . The hydraulic pump is associated by spindle (23) with piece (24) which contains two axles (25) and (26) with the free gearwheels (27) and (28) . The aforesaid gearwheels (27) and (28) are gearing with the interior side of the aforesaid gearwheel (20) and with the gearwheel (22) which is placed on the second spindle (21) .

Claims

1- The automatic gearbox with hydraulic pump, understanding a shift of values of the rotations between the first spindle (1) and the second spindle (10), from complete desmultiplication (the aforesaid first spindle (1) is in rotation and the aforesaid second spindle (10) in still state) to maximum multiplication (for each rotation of the principal gearwheel of the differential (4) the aforesaid second spindle (10) rotates twice) progressive and without any intervention to the gearwheels of the aforesaid gearbox, characterized by the aforesaid first spindle (1) is in gear with the aforesaid gearwheel (4) through the gearwheel (2), the aforesaid gearwheel (4) contains an axle (7) with two gearwheels (8) and (9) which are free in rotary movement and are gearing with gearwheels (5) and (6), the aforesaid gearwheel (5) is placed in the aforesaid second spindle (10), the aforesaid gearwheel (6) is placed in the crankshaft (13) of the hydraulic pump (14) which contains four cylinders with oil where the pistons (15) are to slide, the pistons (15) are connected with the aforesaid crankshaft (13) by the piston- rods (16), the position of the piston of the first cylinder is in upper dead-point, the piston of the second cylinder is in lower dead-point, the pistons of third and fourth cylinders are in the middle between both dead-points, if the aforesaid crankshaft (13) turns one fourth part of the rotation (this position is not indicate on the drawings) the aforesaid pistons of the third and fourth cylinders are to occupy upper and lower dead-points, between the aforesaid first and second cylinders exist the gutter to permit the flux of the oil, between the aforesaid third and fourth cylinders exist an other gutter for the same reason, these aforesaid gutters can be opened or progressively closed through the two synchronized valves (17) (which responds by acceleration of the motor) , this is to permit the aforesaid gearwheel (6) to turn with necessary velocity, the gearwheel (12) is free in the rectilinear and rotary movements on the axle (11), this permits the dislocation of the aforesaid gearwheel (12) till gearing with the gearwheel (3) and the aforesaid gearwheel (5), this obligates the aforesaid second spindle (10) to turn in inverse direction.

2- The automatic gearbox with hydraulic pump according to the claim 1, characterized by the aforesaid valves (17) are indicated on the drawing to make easy understanding of the function, but in the production of the aforesaid gearbox these aforesaid valves (17) can be substitute by any others, which can work inside the aforesaid gutters, for example the spherical valve, (the spherical valve contains a hole which can be opened or closed for the flux of oil, dependently of the position of the aforesaid valve) .

3- The automatic gearbox with hydraulic pump according to the claim 1, characterized by the aforesaid hydraulic pump (14) which uses the crank-piston system which can be substituted by any other hydraulic pump which uses any other system, for example the gearing hydraulic pump (two gearwheels are gearing so that oil is sucked into the entry of the pump and at the same time blowing to the exit of the pump) , the flux of the oil between the entry and the exit of the aforesaid pump must be controlled by the valve, this is to permit the aforesaid gearwheel (6) to rotate with necessary velocity.

4- The automatic gearbox with hydraulic pump according to the claim 1, characterized by the set of the gearwheels (4), (5), (6), (8) and (9) which are denominate by the differential which can be substituted by the set of the gearwheels (20), (22), (27) and (28) which are denominated by the modernized differential, this will permit maximum multiplication to increase dependent on the deference of the quantity of the teeth between the aforesaid gearwheel (22) and the inside of the aforesaid gearwheel (20) .