Hydraulic power boosting system

Abstract

The hydraulic power increaser system includes: a power source (in this case, an electric motor), a hydraulic pump, a relief valve for safety, hydraulic conductors, a liquid fluid reservoir, 4-way directional valves operated by servo motors, and a digital/analog control system in conjunction with inductive proximity sensors located at the ends of the cylinders or boosters. Two boosters or cylinders are configured in series in the same line, each with an internal plunger that moves and displaces the fluid contained in the cylinders or boosters linearly. Hydraulic actuators or motors perform the work by transforming the energy of the system. All these aforementioned elements constitute the main block, which acts as a power source for the next secondary block, which contains the same elements as the main block except for the power source (in this case, an electric motor).

Claims

1. A hydraulic power increaser system comprising: a main drive system; and a directional change system; wherein said main drive system comprises a main motor generating angular power, a pump connected to said main motor and to a fluid reservoir, which sucks said fluid and displaces the fluid fluidly; a pump to provide fluid at a first pressure comprising; a first booster or cylinder having inside: a plunger that moves linearly from an initial position to a final position and a stroke limit sensor at each end of said booster or cylinder; a 4-way directional valve connected to both ends of the booster or cylinder, which restricts or allows the passage of fluid into or out of the booster or cylinder; feeding a first hydraulic motor, at a second pressure, which functions to convert the hydraulic energy from the first booster or cylinder into angular mechanical energy to perform work, from the outlet of the first hydraulic motor, a pressure remnant is obtained, considered as a third pressure, and a same volume, which are conducted by working lines until connecting with a second 4-way directional valve, which in turn restricts the inputs and outputs of a second booster or cylinder; said second booster or cylinder comprises inside: a plunger that moves linearly from an initial position to a final position and a stroke limit sensor at each end of said booster or cylinder; the second 4-way directional valve connected to both ends of the second booster or cylinder, which restricts or allows the passage of fluid into or out of the second booster or cylinder, wherein said second piston increases the third pressure of the fluid to obtain a fourth pressure; a second hydraulic motor, fluidly connected to said second 4-way directional valve, which receives the fluid at the fourth pressure to convert the fluid into angular mechanical energy to perform work; a fluid cooling device, which cools the fluid from the second hydraulic motors to send the fluid to the fluid reservoir and start a new cycle indefinitely.

2. The hydraulic power increaser system according to claim 1, wherein the main motor is an electric motor.

3. The hydraulic power increaser system according to claim 1, wherein the plungers move independently of each other, eliminating the directional subordination between the plungers.

4. The hydraulic power increaser system according to claim 1, wherein a position of the cylinders does not interfere with their operation.

5. The hydraulic power increaser system according to claim 1, wherein each plunger has a cavity on front faces to store nitrogen, which communicates through four lateral holes for purging and filling said cavity.

6. The hydraulic power increaser system according to claim 5, wherein to cover said cavity and prevent nitrogen leakage, a pressure-resistant membrane is installed, attached to the plunger through a cover.

7. The hydraulic power increaser system according to claim 1, wherein covers located at the ends of both ends of each booster or cylinder have a pyramidal shape including a simple polygon and triangles with a single side related to one side of the base polygon.

8. The hydraulic power increaser system according to claim 7, wherein the pyramidal shapes of the covers located at the ends of both ends of each booster or cylinder have an inclination angle between 1 to 45.

9. The hydraulic power increaser system according to claim 7, wherein an anti-cavitation system is located inside the covers, wherein the anti-cavitation system includes plates.

10. The hydraulic power increaser system according to claim 1, wherein the system has applications on different scales by changing the diameters and lengths of the cylinders or boosters.

11. The hydraulic power increaser system according to claim 1, wherein the system uses a unidirectional drive coupling in a final power take-off.

12. The hydraulic power increaser system according to claim 11, further including helical concave cavities so that the drive pins transmit torque or force in only one direction, either clockwise or counterclockwise.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) FIG. 1: This figure represents the general diagram of the hydraulic system of this invention, with the positions of the plunger and valves arranged randomly.

(2) FIG. 2: This figure represents the geometric shape of the caps (37), (38), (39), and (40) of this invention and the anti-cavitation plates (41).

(3) FIG. 3: This figure represents the plunger (11) and (20), their cavities (42), (43), (44), and (45), their membranes (30), (31), (32), and (33), their caps (46), (47), (48), and (49), their nitrogen supply bores (50), (51), (52), and (53), and their purge bores (540), (550), (560), and (570).

(4) FIG. 4: This figure represents the position of the internal spool (61) of the 4-way directional valve (7), randomly as in FIG. 1.

(5) FIG. 5: This figure represents the position of the internal spool (62) of the 4-way directional valve (17), randomly as in FIG. 1.

(6) FIG. 6: This figure represents the system after a directional change in the plunger (11), taking into account the random initial position of the system represented in FIG. 1. This occurs after the blocked ports of the valves (7) are unblocked, and the unblocked ports of the valve (7) are blocked.

(7) FIG. 7: This figure represents the unidirectional mechanical drive coupling (54), which will be used to protect the system in case of a sudden emergency stop. Its parts are shown: male (56), female (57), drive bolts (58), springs (59), and the safety plate (60).

(8) FIG. 8: This figure represents the system after a directional change in the plunger (20), considering the random initial position of the system represented in FIG. 1. This occurs after the blocked ports of the valves (17) are unblocked, and the unblocked ports of the valve (17) are blocked.

DETAILED DESCRIPTION OF THE INVENTION

(9) Below, the operation of the hydraulic power increaser system is detailed.

(10) It is important to mention first that the hydraulic system, due to its characteristics, needs to be completely saturated with liquid fluid and purged before starting.

(11) In this system, an external energy source is available that powers the electric motor. When the starter is energized, the electric motor (1) converts electrical energy into angular mechanical energy, thus driving the hydraulic pump (2), which is mechanically connected to the electric motor (1) of the first block of the system. By activating the hydraulic pump (2), it begins to draw fluid from the reservoir (3) through its suction port.

(12) At this point, the displacement of the volume that feeds the system begins. This volume displacement is one of the two fundamental conditions for forming a hydraulic system. From the outlet port of the hydraulic pump (2), the manifold (4) is connected, from which the supply lines (5) and (6) derive. These lines conduct the fluid to the first 4-way valve (7). The supply line (5) is connected to port C of the 4-way valve (7), and supply line (6) is connected to port B of the same valve. The position of the spool (61) of the 4-way valve (7) is shown in FIG. 4. From port C of the valve (7), supply line (5) connects to one side of the right cap (37) of the booster or cylinder (8). From the outlet of the right cap (37) of the booster or cylinder (8), the working line (10) is connected, which connects to port D of the 4-way valve (7). In this position of the spool (61) of the 4-way valve (7), ports A and C are unblocked, while ports B and D are blocked. From the rear port B of the 4-way valve (7), supply line (6) continues connecting to the left cap (38) of the booster or cylinder (8). From the outlet of the left cap (38) of the booster or cylinder (8), the working line (9) is connected to rear port A of the 4-way valve (7). From port G of the 4-way valve (17), supply line (15) is connected, and from port F of the same valve, supply line (16) is connected. The position of the spool (62) of the 4-way valve (17) is shown in FIG. 5.

(13) After port F of the 4-way valve (17), supply line (16) continues connecting to the left side cap (39) of the booster or cylinder (18). From the outlet of the right cap (40) of the booster or cylinder (18), the working line (19) is connected, which connects to port H of the 4-way valve (17). From rear port G of the 4-way valve (17), supply line (15) continues connecting to the right side cap (40) of the booster or cylinder (18), and from the outlet port of the left cap (39) of the booster or cylinder (18), the working line (19) connects to port H of the 4-way valve (17). Through supply line (16), the fluid displaced by the plunger (11) is directed to the port of the left cap (39) of the booster or cylinder (18) to begin moving the plunger (20) to the right side (40) of the booster or cylinder (18) and, at the same time, displace the fluid located on the rear side of the plunger (20). The fluid displaced by the plunger (20) is directed to the outlet port of the right cap (40) of the booster or cylinder (18), which connects to the working line (19) and passes through the 4-way valve (17) through port H. The fluid goes to the manifold (22), which is connected directly to the inlet port of the hydraulic motor or angular actuator (23). Passing through the hydraulic motor (23), it converts hydraulic energy into angular mechanical energy.

(14) The fluid flows through the outlet port of the hydraulic motor (23), discharging into the manifold (24), which is directly connected to a cooling system (25) to return the fluid to the reservoir (3), maintaining an appropriate temperature for reuse in subsequent cycles.

(15) This description of a random state of the system can be seen in FIG. 1, where the direction of the plunger does not depend on each other.

(16) Note in FIG. 1 that the plunger (11) of the cylinder or booster (8) will reach its stroke limit marked by the inductive proximity sensor (26) before the plunger (20) of the booster or cylinder (18), without affecting the system's operation in any way.

(17) Once the plunger (11) of the booster or cylinder (8) has activated the output of the inductive proximity sensor (26), it will send a signal to the control system for the servo motor (34) to rotate and turn the spool (61), producing a directional change. This change involves blocking ports A and C of the directional valve (7) and unblocking ports B and D of the directional valve (7).

(18) After the aforementioned directional change, the plunger (11) now moves from left to right as shown in FIG. 6. At this moment, the plunger (20) has not yet reached its stroke limit, so in FIG. 6, it still has the same direction as in FIG. 1. Both plunger moving in the same direction.

(19) Once the plunger (20) of the booster or cylinder (18) has activated the output of the inductive proximity sensor (29), it will send a signal to the control system for the servo motor (28) to rotate and turn the spool (62), producing a directional change. This change involves blocking ports F and H of the 4-way directional valve (17) and unblocking ports E and G of the 4-way directional valve (17), as shown in FIG. 8.

(20) It is necessary to mention that the plungers (11) and (20) move independently of each other, eliminating directional dependence between them, meaning the direction of one plunger does not affect the direction of the other.

(21) This is the description of the working cycle of a block. Depending on the applications, other blocks can be interconnected in series, starting with another hydraulically driven pump, through a transmission, by the two hydraulic motors (13) and (23). The new pump will act as a load or work for the first block. Similarly, motors (13) and (23) can be connected by a transmission (36) to use that energy in the work being done, either to generate electrical energy with a generator or to use mechanical energy for physical work.