WO2008057539A2 - Hydraulically-assisted turbocharging system - Google Patents

Abstract

The present invention is a hydraulically-assisted turbocharger system (10) having a selectively engagable pump (20), a camshaft (54) having at least one cam (56), with the cam (56) operably associated with the pump (20), a turbocharger unit (12) having a compressor (18) and a turbine (14), and a hydraulically actuated driver (16) for driving the turbocharger (12), the driver being in fluid communication with the pump (20), connected to the turbocharger and the pump (20). When the cam (56) rotates, and the pump (20) is activated, the cam (56) will cause the pump (20) to deliver pressurized fluid through the hydraulically actuated driver (16) for driving the turbocharger (12), thereby causing the compressor (18) to compress air, and when the pump (20) is deactivated, no fluid is pumped for driving the turbocharger (12).

Description

HYDRAULICALLY-ASSISTED TURBOCHARGING SYSTEM

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a PCT International Application which claims the benefit of U.S. Provisional Application No. 60/857,553, filed November 8, 2006. The disclosure of the above application is incorporated herein by reference.

FIELD OF THE INVENTION The present invention relates to hydraulic turbochargers having a hydraulic pump which includes a collapsible link used for selectively delivering fluid under pressure to a hydraulically-assisted turbocharger.

BACKGROUND OF THE INVENTION Turbochargers are generally known and are used to increase the horse power of an internal combustion engine. Turbochargers typically have a turbine powered by exhaust gas pressure which results from exhaust gas flowing from the exhaust manifold of an engine, and a compressor used to compress fresh air from the atmosphere to create "boost pressure" and force air into the intake manifold of an engine, increasing the power of the engine. A common problem with turbochargers is the lack of boost pressure available at low engine speed. The amount of exhaust gas pressure at low engine speed is insufficient to power the turbine, and therefore the compressor, to provide adequate boost pressure. Many attempts have been made to compensate for this low boost pressure availability at low engine speed, one of these solutions has been to provide a hydraulically-assisted turbocharger which uses hydraulic fluid to power the turbocharger instead of exhaust gas flowing through the turbine, when the engine is at low engine speed. These hydraulically-assisted turbochargers usually include the use of some type of hydraulic pump, which is used to provide pressurized fluid to the turbocharger unit which allows the compressor to compress air and provide the necessary amount of boost pressure to the engine. The types of hydraulic pumps which are commonly used to provide hydraulic pressure are usually of the rotary or gerotor type. One drawback to using these types of pumps is that there is no way to selectively engage the pump, or turn the pump on and off when the hydraulic pressure is no longer necessary. These types of pumps continuously provide fluid pressure to the hydraulically-assisted turbocharger, even when the fluid pressure is not needed. Accordingly, there exists a need for a hydraulically-assisted turbocharging unit which has the capability to deactivate the pump used to provide fluid pressure to the turbocharger when the hydraulic fluid pressure is not necessary.

SUMMARY OF THE INVENTION

The present invention is a hydraulically-assisted turbocharger system having a selectively engagable pump, a camshaft having at least one cam, with the cam operably associated with the pump, a turbocharger unit having a compressor and a turbine, and a hydraulically actuated driver for driving the turbocharger, the driver being in fluid communication with the pump, connected to the turbocharger and the pump.

When the cam rotates, and the pump is activated, the cam will cause the pump to deliver pressurized fluid through the hydraulically actuated driver for driving the turbocharger, thereby causing the compressor to compress air, and when the pump is deactivated, no fluid is pumped for driving the turbocharger.

Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein: Figure 1 is schematic of a hydraulically-assisted turbocharging unit having a pump with a collapsible link, according to the present invention;

Figure 2 is a first sectional side view of a pump used in a hydraulically- assisted turbocharging unit, according to the present invention; Figure 3 is a second sectional side view of a pump having a collapsible link used in a hydraulically-assisted turbocharging unit, according to the present invention;

Figure 4 is an enlarged view of the pump viewed in Figure 2;

Figure 5 is a wire diagram of a top view of an alternate embodiment of a hydraulic pump used in a hydraulic turbocharger, according to the present invention;

Figure 6 is a wire diagram of a side view of an alternate embodiment of a hydraulic pump used in a hydraulic turbocharger, according to the present invention; Figure 7 is a sectional front view taken along 7-7 of Figure 1 , according to the present invention

Figure 8 is a sectional side view taken along line 8-8 of Figure 1 , according to the present invention;

Figure 9 is a sectional bottom view taken along 9-9 of Figure 2, according to the present invention;

Figure 10 is a perspective view of a hydraulic pump according to another alternate embodiment of the present invention;

Figure 11 is a perspective view of a hydraulic pump with the body removed, according to another alternate embodiment of the present invention; Figure 12 is a perspective view of an alternate embodiment of a hydraulic pump showing apertures in phantom, according to another alternate embodiment of the present invention; and

Figure 13 is a perspective view of a hydraulic pump with the housing removed, according to an alternate embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following description of the preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. Referring to Figure 1 , a schematic of a hydraulically-assisted turbocharger unit having a deactivatable piston pump according to the present invention is generally shown at 10. The system 10 has a hydraulically assisted turbocharger 12 which includes a turbine 14, a rotor 16, and a compressor 18. The turbocharger 12 is connected to a piston pump 20 through the use of any suitable conduit 22 such as a high-pressure hose, solid piping, a manifold passage, or the like. The conduit 22 is operably connected to the rotor 16. Also connected to the turbocharger 12 is a drain hose 26 which feeds fluid into a drain 28 after the fluid is used to power the turbocharger 12. A sectional side view of a pump 20 having a collapsible link used for selectively deactivating the pump 20 is shown in Figures 2 and 3. The pump 20 has a housing 30, which includes a top plate 32, and a body 34 having at least one cylinder 36. In the embodiment shown, one cylinder 36 is used, but it is within the scope of the invention that more cylinders can be used to suit a particular application. The housing 30 also has a bottom portion 38 which includes a block portion 40. The top plate 32, body 34, and bottom portion 38 are connected by a series of bolts 42 which extend through holes 44 in the top plate 32, body 34, and bottom portion 38. The top plate 32 also includes two openings 46, 48 which are located above each of the cylinders 36. The openings 46, 48 are used for receiving check valves 50, 52 which are used to pump fluid into and out of the cylinder 36.

The block portion 40 is used for supporting a camshaft 54 having at least one cam 56. The camshaft 54 also has a pulley 58 located on one end. The pulley 58 can be connected to a belt or chain (not shown), which is then connected to the crankshaft of an engine; the rotation of the crankshaft of the engine provides power to the pump 20. The cylinders 36 in the body 34 receive a series of one or more collapsible links 60. Each collapsible link 60 is comprised of an inner member, which in this embodiment is an inner cylinder 62 having a circular cross-section received by an outer member, which in this embodiment is an outer cylinder 64 having a circular cross-section. Each inner cylinder 62 has an aperture 66 which receives a locking member, in this case the locking member is a pin 68 having a base portion 70 fixedly mounted inside the aperture 66, and a moveable portion 72 that is able to slide in the aperture 66. The moveable portion 72 is attached to the base portion 70 through the use of a spring 74. The inner cylinder 62 also includes a recess 76, the function of which will be described later. The shape of the inner member and outer member does not have to be a cylinder, the inner member and outer member can also be in the shape of a square or any other shape necessary for the particular application the present invention is being used for. Also, the locking member does not necessarily have to be a pin 68, the locking member could also be a disc, tube, or other movable piece which could connect the inner member and outer member.

Each outer cylinder 64 is hollow and receives the inner cylinder 62 and a spring 78. Each outer cylinder 64 has a flat bottom surface 80 which is used to compress the spring 78, and a roller 82 which is connected to the outer cylinder 64 through the use of a roller pin 84. The spring 78 is positioned between the bottom surface 80 and the inner cylinder 60. The roller 82 of each outer cylinder 64 is in contact with the cam 56 on the camshaft 54. Each outer cylinder 64 also has a port 86 selectively in line with the aperture 66 located in the inner cylinder 60. Disposed within the cylinder 36 is a return spring 88 which contacts the bottom surface of the top plate 32 and the outer diameter of the inner cylinder 60. The function of the return spring 88 is to ensure that the roller 82 remains in contact with the cam 56 at all times during operation. Referring specifically to Figures 2 and 3, there is a fluid conduit 90 which is used to actuate the pin 68 in each collapsible link 60. Located in each fluid conduit 90 is a circular orifice 92. There is a spool valve 94 for directing fluid to the collapsible link 60. It is also within the scope of the invention that multiple spool valves could be used similar to the spool valve 94 to be used with multiple collapsible links 60 to provide the proper amount of boost pressure in the turbocharger 12 to suit a particular application.

In operation, the pulley 58 is in constant rotation because of the permanent connection between the pulley 58 and the crankshaft of the engine. This causes the camshaft 54 to be in constant rotation as well. As the camshaft 54 rotates, this causes the cams 56 to rotate, and apply force to the rollers 82 of the outer cylinders 64. When pumping action from the collapsible links 60 is necessary, the spool valve 94 will be in a position to prevent fluid flow through the fluid conduits 90, and the collapsible link 60 will be in a first position or rigid non-telescoped configuration shown in Figures 2 and 4. The position of the collapsible link 60 in Figures 2 and 4 is the default position, where the spring 74 maintains the position of the moveable portion 72 of the pin 68 in the port 86 of the outer cylinder 64. Once in this first position, load will be transferred from the cam 56 to the roller 82, through the roller pin 84 to the outer cylinder 64, the pin 68, and to the inner cylinder 62. In this position, the outer cylinder 64 will compress the return spring 88 in a cyclical manner, and the return spring 88 will maintain contact between the cam 56 and the roller 82. When pumping action is not needed, the spool valve 94 is moved into a position to allow fluid to flow through the fluid conduits 90 to apply pressure to the pin 68 in the inner cylinder 62. The fluid will flow through the fluid conduit 90, through the port 86 in the outer cylinder 64, into the aperture 66 in the inner cylinder 62 and apply pressure to the moveable portion 72 of the pin 68. Once enough pressure is applied, the force of the fluid pressure applied to the moveable portion 72 of the pin 68 will overcome the force applied to the moveable portion 72 from the spring 74, forcing the pin 68 into the position shown in Figure 3, and the moveable portion 72 of the pin 68 is no longer located in the port 86 of the outer cylinder 64, and the collapsible link 60 will no longer be able to pump fluid. The load from the camshaft 54 is no longer transferred to the inner cylinder 62, and the collapsible link 60 is in a second position, or collapsible telescoped configuration. In this second position, the spring 78 between the bottom surface 80 of the outer cylinder 64 and the inner cylinder 62 acts to absorb the load from the outer cylinder 64. The return spring 88 maintains the lower cylinder 62 in a stationary position relative to the check valves 50, 52 such that no fluid is pumped. Also, the position of the collapsible link 60 is in a position such that the pin 68 is aligned with the fluid conduit 90, and can be reactivated by releasing the fluid pressure. The collapsible link 60 is shown in a deactivated state in Figure 3. As the cam 56 rotates, force is transferred from the roller 82 through the roller pin 84 to the outer cylinder 64, but because the pin 68 is not inserted into the port 86, the collapsible link 60 will not pump any fluid. The outer cylinder 64 will compress the return spring 88, but the inner cylinder 62 will not move with the outer cylinder 64, and therefore not pump any fluid.

As previously stated, the top plate 32 has openings 46, 48 which are used for holding the check valves 50, 52. There are two openings 46, 48, and therefore two check valves 50, 52 for each cylinder 36. As pumping action is created by the cam 56 applying force to the rollers 82, the collapsible link 60 moves in the cylinder 36. Fluid is drawn into the cylinder 36 through the check valve 52 in opening 48 under low pressure, and forced out of the other check valve 50 in opening 46 under high pressure into the high pressure hose 22. It should be noted that the openings 46 and 48 could be switched such that the fluid could be drawn into the check valve in the opening 46, and forced out through the check valve in the opening 48. As previously mentioned, the inner cylinder 62 has a recess 76 which can be connected to a piston, or the collapsible link 60 can be used to pump fluid directly. The pumping action generated by the rotation of the camshaft 54 can be used to provide hydraulic fluid under pressure to the turbocharger 12 in any number of ways.

If the pump 20 has multiple links 60, the pump 20 can have all of the links 60 engaged, some of the links 60 engaged, or none of the links 60 engaged at any time. These various operating conditions can be used to create the necessary pumping action from the links 60 only when necessary to aid in generating the proper amount of fluid pressure to operate the turbocharger unit 12. When the collapsible link 60 is actuated, fluid is drawn in through the check valve 52, the fluid is then forced through the check valve 50 and into the high-pressure hose 22, the fluid will contact the rotor 16 and force the rotor 16, along with the turbine 14 and the compressor 18, to rotate in a conventional manner. This will cause the compressor 18 to compress air which is used to increase power in an engine. The pump 20 is used to provide fluid pressure to the turbocharger unit 12 and the activation of the link 60 can occur as quickly as approximately .1 seconds at 1200 rpm engine speed. Also, the shape of the cam 56 can be changed to change the amount of fluid pressure delivery per stroke of the collapsible link 60. Another advantage of the present invention is that the pump can be controlled by a vehicle's electronic control unit (ECU), the ECU can also be used to control a solenoid (not shown) which can be used to deliver fluid through the fluid conduit 90 to the collapsible link 60. Controlling the solenoid and the pump 20 together with the vehicle ECU allows for smoother pump 20 operation. The solenoid can be used to control the spool valve 94 directly, or the solenoid can be used instead of the spool valve 94 and control fluid flow through the fluid conduit 90. The pump 20 can also be used to provide continuous boost assist to the turbocharger 12 if necessary. Additionally, the system 10 can also incorporate an accumulator 96, shown in phantom in Figure 1. The pump 20 can be used to build and store fluid under pressure in an accumulator 96, the fluid can then be used deliver fluid under pressure to the turbocharger 12. Also, the system 10 could also provide power to a separate blower 98, which is also shown in phantom in Figure 1. Other components which are powered by hydraulic pressure generated by a pump are also within the scope of the present invention.

If an accumulator is not used, the system 10 is simplified, and the risks associated with using an accumulator 98 storing fluid under high pressure are eliminated. Alternate embodiments of the pump 20 can also be used to power the turbine 12. One alternate embodiment of the pump 20 is shown in Figures 5- 9, with like numbers referring to like elements. The pump 20 is similar to the first embodiment, with the exception that the pump 20 has a larger housing 30 which includes more cylinders 36 for receiving more collapsible links 60. In this embodiment, there are four collapsible links 60, but it is within the scope of the invention that more or less collapsible links 60 may be used.

Referring specifically to Figure 7, there are four fluid conduits 90 which are used to actuate the pin 68 in each collapsible link 60. Located in each fluid conduit 90 is a circular orifice 92. There is a first spool valve 94 for directing fluid to two of the collapsible links 60, and a second spool valve 100 for directing fluid to the remaining collapsible links 60. It is also within the scope of the invention that the first spool valve 94 and the second spool valve 100 can be configured to direct fluid to the collapsible links 60 in a sequential manner, instead of two collapsible links 60 simultaneously, as shown in Figure 7. For instance, the fluid can be directed to none of the cylinders initially, then one of the cylinders, followed by two, then three, and finally all four. The first spool valve 94 and second spool valve 100 could also replaced with individual spool valves which can control fluid delivery to each cylinder 36 separately.

In operation, the pulley 58 is in constant rotation because of the permanent connection between the pulley 58 and the crankshaft of the engine, similar to the first embodiment. This causes the camshaft 54 to be in constant rotation as well. As the camshaft 54 rotates, this causes the cams 56 to rotate, and apply force to the rollers 82 of the outer cylinders 64. When pumping action from the collapsible links 60 is necessary, either the first spool valve 94 or the second spool valve 100 is moved into a position to prevent fluid from flowing through the fluid conduits 90, thereby preventing any fluid pressure from being applied to the pins 68 in each of the inner cylinders 62. This will cause the movable portion 72 of the pin 68 to be inserted into the port 86 of the outer cylinder 64 by the spring 74, and each collapsible link 60 will be in the first position or rigid non-telescoped configuration. Once in this first position, load will be transferred from the cam 56 to the roller 82, through the roller pin 84 to the outer cylinder 64, the pin 68, and to the inner cylinder 62.

As previously stated, the top plate 32 has openings 46, 48 which are used for holding the check valves 50, 52, the check valves 50, 52 can be similar to the check valves 50, 52 of the previous embodiment. There are two openings 46, 48, and therefore two check valves for each cylinder 36. As pumping action is created by the cam 56 applying force to the rollers 82, the collapsible link 60 moves in the cylinder 36. Fluid is drawn into the cylinder 36 through one check valve 52 under low pressure, and forced out of the other check valve 50 under high pressure, similar to the previous embodiment. Additionally, the inner cylinder 62 has a recess 76 which can be connected to a piston pump directly to pump fluid, instead of using the collapsible links 60 to pump fluid. The pumping action generated by the rotation of the camshaft 54 can have any number of applications. When the fluid pressure is applied by opening either the first spool valve 94 or the second spool valve 100, the fluid will flow through the fluid conduit 90, through the port 86 in the outer cylinder 64, into the aperture 66 in the inner cylinder 62 and apply pressure to the pin 68. Once enough pressure is applied, the pins 68 will be in a position similar to what is shown in Figure 3 of the first embodiment, the moveable portion 72 of the pin 68 in the inner cylinder 62 slides into the aperture 66 such that the moveable portion 72 is no longer in the port 86 in the outer cylinder 64. The load from the camshaft 54 is no longer transferred to the inner cylinder 62, and the collapsible link 60 is in the second position, or collapsible telescoped configuration. In this second position, the spring 78 between the bottom surface 80 of the outer cylinder 64 and the inner cylinder 62 acts to absorb the load from the outer cylinder 64, and the return spring 80 acts to hold the inner cylinder 62 in a position similar to that shown in the first embodiment. This maintains the inner cylinder 62 and outer cylinder 64 in a position such that the pin 68 can be reactivated by releasing the fluid pressure.

The pump 20 can have all of the links 60 engaged, some of the links 60 engaged, or none of the links 60 engaged at any time. These various operating conditions can be used to create the necessary pumping action from the links 60 only when necessary. Another alternate embodiment is shown in Figures 8-11. Referring to

Figure 8, a hydraulic pump according to an alternate embodiment the present invention is generally shown at 102. The pump 102 has a body 104, which has four rectangular-shaped sides 106, 108, 110, and 112 (as best seen in Figure 11), respectively, and two large square-shaped sides 114 and 116. The body 86 also has a series of cylinders 118, which can be positioned anywhere in the body 104 to achieve the required design objectives.

As can be seen in Figure 8, in this particular embodiment two cylinders 118 are placed along a first axis 120, with two more cylinders 118 placed along a second axis 122 with the first axis 120 being perpendicular to the second axis 122. The cylinders 118 are located on each rectangular-shaped side 106, 108, 110, and 112 and all terminate into an opening 124. The opening 124 is located in the body 104, at the center of the square-shaped sides 114 and 116. Located in each cylinder 118 is a collapsible link 126, similar to what is shown in the previous embodiments, having a first end 128 and a second end 130. For demonstrative purposes and clarity, only one collapsible link 126 is shown in the Figures. Also connected to each cylinder 118 is a fluid conduit 132 (best seen in Figure 10) which is used to deliver oil to actuate the collapsible links 126 in the cylinders 118.

Surrounding the body 104 is a housing 134, the housing 134 has four sections 136 which are connected to the body 104 through a series of fasteners (not shown) inserted through a corresponding series of holes 138 which pass through the housing 134. The fasteners could be a series of screws, rivets, or the like. Each section 136 of the housing 134 also includes openings 140, 142, which receive check valves (not shown) in a similar manner to the first embodiment. Also, shown in Figure 10 are the sections 136 which have a series of oil feed pipes 144. The oil feed pipes 144 correspond to each of the fluid conduits 132 for delivering oil to the collapsible links 126 in a similar manner disclosed in the first embodiment.

The opening 124 of the body 104 is suited for receiving a cam (not shown) having a lobe similar to the first embodiment. However, in this embodiment, the cam is positioned in the opening 124 and rotates about an axis perpendicular to the first axis 120 and the second axis 122. In operation, as the cam rotates, the first end 128 of each collapsible link 126 is depressed and released by the cam lobe in sequential manner and is pressed away from the opening 124. As the first end 128 is pressed and released, this causes each link to create a pumping action which can be used to power devices in the vehicle requiring pumping actuation.

The collapsible links 126 have two operating modes and are similar to the collapsible links 60 disclosed in the previous embodiments. One operating mode is one in which the collapsible link 126 is in the first position, and another mode is one in which the collapsible link 126 is in the second position. Each collapsible link 126 has a pin (not shown) which is actuatable through the use of the fluid conduits 132. The pin in this embodiment operates in the same manner as discussed in the previous embodiments. In operation, oil is fed through the fluid conduits 132 to actuate the pin. When the pin is actuated, the respective collapsible link 126 is in the first position and acts as a solid rigid non-telescoping member, facilitating the pumping action described above. The check valves in the openings 140, 142 will allow fluid to be drawn into the cylinder 118 under low pressure, and be forced out of the cylinder 118 under high pressure. When the oil supply in the fluid conduits 132 is used to release the collapsible link 126 for telescopic collapse, the collapsible link 126 is in the second position, and acts as a collapsed two- piece member in a similar manner to the previous embodiments, and does not generate any pumping action. It should be noted that the present invention is not limited to the embodiments described above. The pump 102 described thus far has included four cylinders 36 arranged linearly along the camshaft 54, as well as four cylinders 118 arranged circumferentially around a single cam in sequential manner. However, combinations of these arrangements are also within the scope of the present invention. It is also within the scope of the invention that the pump 102 can be driven directly or indirectly by the actual crankshaft of the engine, or the actual camshaft of the engine having an extra cam lobe.

Also, any number of the collapsible links 60 can be engaged or disengaged to vary the overall displacement of the pump 20. Along with varying the number of collapsible links 60 which can be engaged, the cylinders 36 can also vary in size, and can be of any size, further allowing the pump 20 to be configured for any specific application. The cross-section of the inner members 62, the outer members 64, and cylinders 36 were shown having a round, cylindrical cross-section. It is within the scope of the present invention to modify the shape of the cross-section of the inner members 62, the outer members 64, and the cylinders 36 to have various shapes including, but not limited to, an ellipse, an oval, a square, a rectangle, a triangle, a polygon an I-beam, a D-shape, or any other shape which is necessary to suit a particular application. Furthermore, any number of spool valves can be used any number of ways to activate any of the pumping chambers either individually or in any combinations to create any effective displacement. The displacement of the pump 20 can also be changed as the pump 20 operates. The collapsible links 60 can be actuated from the first position to the second position or from the second position to the first position quite rapidly, as frequently as once per revolution of the cam 56. This allows for the duty-cycle of each cylinder 36 to be varied, and therefore its displacement per unit of time can also be varied. This feature of the present invention can eliminate the need for the pump 20 to have a conventional pressure regulator.

The description of the invention is merely exemplary in nature and, thus, variations that do not depart from the gist of the invention are intended to be within the scope of the invention. Such variations are not to be regarded as a departure from the spirit and scope of the invention.

Claims

CLAIMSWhat is claimed is:

1. A hydraulically assisted turbocharger system, comprising: a selectively engagable pump; a camshaft having at least one cam, said cam operably associated with said pump; a turbocharger unit having a compressor and a turbine; a hydraulically actuated driver for driving said turbocharger, said driver being in fluid communication with said pump, connected to said turbocharger and said pump; and wherein when said cam rotates, and said pump is activated, said cam will cause said pump to pump pressurized fluid through said hydraulically actuated driver for driving said turbocharger, thereby causing said compressor to compress air, and when said pump is deactivated, a no fluid is pumped for driving said turbocharger.

2. The hydraulically assisted turbocharger system of claim 1 , wherein said pump further comprises: a body having at least one cylinder; at least one collapsible link, selectively actuatable into a first position and a second position, located in said at least one cylinder; said cam operably associated with said body, and with said at least one collapsible link; and wherein said at least one collapsible link is in said first position, said cam will cause said at least one collapsible link to slidably move within said at least one cylinder to pump pressurized fluid through said hydraulically actuated driver for driving said turbocharger, causing said compressor to compress air, and when said at least one collapsible link is in said second position, a portion of said at least one collapsible link is collapsed by engagement with said cam, and no fluid is pumped for driving said turbocharger.

3. The hydraulically assisted turbocharger system of claim 2, said wherein at least one collapsible link further comprises: an outer member having a roller mounted on a roller pin, and a port operably associated with a fluid conduit, said roller operably associated with said cam; and an inner member having an aperture for receiving a locking member, said inner member slidably disposed within said outer member.

4. The hydraulically assisted turbocharger system of claim 3, wherein said at least one collapsible link is arranged linearly along said camshaft, circumferentially around said cam of said camshaft in a sequential manner, or a combination thereof.

5. The hydraulically assisted turbocharger system of claim 3, wherein fluid pressure is not applied to said locking member, and a portion of said locking member is inserted into said port in said outer member, rigidly connecting said outer member and said inner member, placing said at least one collapsible link in said first position, and wherein fluid pressure is applied to said locking member, causing said locking member to slide into said aperture in said inner member such that no portion of said locking member is in said port of said outer member, and said outer member and said inner member are not rigidly connected, placing said at least one collapsible link in said second position.

6. The hydraulically assisted turbocharger system of claim 5, further comprising: one or more fluid conduits operably associated with said body; and wherein fluid is fed through said one or more fluid conduits, applying pressure to said locking member in said at least one collapsible link, causing said at least one collapsible link to be placed in said second position.

7. The hydraulically assisted turbocharger system of claim 5, wherein the cross-section of said inner member, said outer member, and said cylinder is selected from the group of a circle, a square, a rectangle, an ellipse, an oval, a triangle, an I-beam, a D-shape, or a polygon.

8. The hydraulically assisted turbocharger system of claim 5, said inner member further comprising a recess for connecting said collapsible link to said device requiring pumping action.

9. The hydraulically assisted turbocharger system of claim 5, said locking member being selected from the group consisting of a round pin, a disc, a square-shaped pin, and a tube.

10. The hydraulically assisted turbocharger system of claim 5, said fluid conduit further comprising a solenoid for controlling fluid flow to pass through said fluid conduit to actuate said collapsible link between said first position or said second position.

11. The hydraulically assisted turbocharger system of claim 2, wherein said cam is operably associated with and receives power from, an engine.

12. The hydraulically assisted turbocharger system of claim 1 , wherein said pump is automatically activated when boost pressure is required from said turbocharger.

13. The hydraulically assisted turbocharger system of claim 1 , further comprising an electronic control unit for controlling the activation of said pump.

14. The hydraulically assisted turbocharger system of claim 1 , further comprising a separate blower, wherein said blower is powered by said pump.

15. The hydraulically assisted turbocharger system unit of claim 1 , further comprising a high-pressure hose, wherein said pump is used for pumping fluid through said high-pressure hose to said turbocharger.

16. The hydraulically assisted turbocharger system of claim 1 , further comprising a high-pressure hose, wherein said pump is used to move a piston to pump fluid through said high-pressure hose to said turbocharger.

17. The hydraulically assisted turbocharger system of claim 1 , further comprising an accumulator, wherein said pump is used to build fluid pressure in an accumulator, and said accumulator is used to deliver pressurized fluid to said turbocharger.

18. A hydraulically assisted turbocharger unit assisted by a hydraulic pump, comprising: a turbocharger having a turbine and a compressor; a selectively activatable pump in fluid connection with said turbocharger; a camshaft having one or more cams operably associated with said pump; and a hydraulically actuated driver for driving said turbocharger, said driver being in fluid communication with said pump, and receives fluid under pressure from said pump, and said pump is activated, said pump will pump fluid under pressure through said driver to said turbocharger, providing power to said turbocharger and allowing said compressor to compress air into an intake manifold of an engine, and when said pump is deactivated, no fluid is pumped for driving said turbocharger.

19. The hydraulically assisted turbocharger unit assisted by a hydraulic pump of claim 18, further comprising: said pump having a body including one or more cylinders; one or more collapsible links located in said one or more cylinders, each of said collapsible links selectably engagable between a rigid non- telescoping configuration and a collapsible telescoped configuration; said cams operably associated with each of said plurality of collapsible links; and when said one or more collapsible links are in said rigid non- telescoping configuration, said one or more collapsible links will pump fluid under pressure through said driver to said turbocharger, providing power to said turbocharger allowing said compressor to compress air into an intake manifold of an engine, and when said one or more collapsible links are in said collapsible telescoped configuration, no fluid is pumped for driving said turbocharger.

20. The hydraulically assisted turbocharger unit assisted by a hydraulic pump of claim 19, wherein said plurality of collapsible links are automatically placed in said rigid telescoping configuration when compressed air is required from said compressor of said turbocharger.

21. The hydraulically assisted turbocharger unit assisted by a hydraulic pump of claim 19, wherein said plurality of collapsible links are arranged linearly along the length of said camshaft, circumferentially around said cam of said camshaft in sequential manner, or a combination thereof.

22. The hydraulically assisted turbocharger unit assisted by a hydraulic pump of claim 19 further comprising a high-pressure hose, wherein said plurality of collapsible links are operably associated with a piston used for pumping fluid through said high-pressure hose to said turbocharger.

23. The hydraulically assisted turbocharger unit assisted by a hydraulic pump of claim 22, wherein said plurality of collapsible links are used to pump fluid from said pump through said high-pressure hose to said turbocharger.

24. The hydraulically assisted turbocharger unit assisted by a hydraulic pump of claim 19, wherein the cross-section of said one or more collapsible links and said one or more cylinders is selected from the group consisting of a circle, an ellipse, an oval, a square, a rectangle, a triangle, an I-beam, a D-shape, or a polygon.

25. The hydraulically assisted turbocharger unit assisted by a hydraulic pump of claim 18, wherein said pump is used to build fluid pressure in an accumulator, and said accumulator is used to deliver pressurized fluid to said turbocharger.

26. The hydraulically assisted turbocharger unit assisted by a hydraulic pump of claim 18, wherein said camshaft is driven by the crankshaft of an engine

27. A method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power, comprising the steps of: providing a selectively activatable pump; providing a camshaft having at least one cam, said at least one cam operably associated with said pump; providing a turbocharger unit having a turbine and a compressor, said turbocharger in fluid connection with said pump; providing a hydraulically actuated driver connected to said turbocharger and said pump; delivering pressurized fluid from said pump to said turbocharger when said pump is activated; and causing no fluid to be delivered to said turbocharger when said pump is deactivated.

28. The method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power of claim 27, further comprising the steps of: providing said pump with a body having at least one cylinder, and one or more fluid conduits; providing at least one collapsible link located in said at least one cylinder having a first position and a second position; applying and releasing force to said at least one collapsible link by rotating said camshaft; selectively placing said at least one collapsible link in said first position or said second position through the use of fluid pressure applied from said one or more fluid conduits; causing said at least one collapsible link to create a pumping action when pressure is applied by said at least one cam when said at least one collapsible link is in said first position; delivering pressurized fluid from said pump to said turbocharger when said collapsible link is in said first position; and causing said at least one collapsible link to create no pumping action when pressure is applied by said at least one cam when said at least one collapsible link is in said second position.

29. The method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power of claim 28, further comprising the steps of: providing said at least one collapsible link to further include an outer member having a roller mounted on a roller pin, and a port operably associated with said one or more fluid conduits, said roller operably associated with said cam; providing said at least one collapsible link to further include an inner member having an aperture for receiving a locking member, operably associated with a device requiring pumping action, said inner member slidably disposed within said outer member; releasing fluid pressure from said locking member, causing a portion of said locking member to become inserted into said port of said outer member, rigidly connecting said outer member and said inner member and forming said first position of said at least one collapsible link; and applying fluid pressure to said locking member, causing said locking member to move into said aperture in said inner member such that no portion of said locking member is in said port of said outer member, said outer member and said inner member are not rigidly connected, forming said second position of said at least one collapsible link.

30. The method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power of claim 29, further comprising the steps of: selecting the cross section of said inner member, said outer member, and said cylinder from the group consisting of a circle, a square, a rectangle, an ellipse, an oval, a triangle, an I-beam, a D-shape, and a polygon; and slidably disposing said inner member within said outer member.

31. The method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power of claim 29, said inner member further comprising the steps of providing a recess for connecting said collapsible link to said device requiring pumping action.

32. The method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power of claim 29, further comprising the steps of selecting said locking member from the group consisting of a round pin, a disc, a square-shaped pin, and a tube.

33. The method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power of claim 29, further comprising the step of actuating said at least one collapsible link into,said first position by preventing the flow of hydraulic fluid through said one or more fluid conduits to apply pressure to said locking member.

34. The method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power of claim 29, further comprising the steps of arranging said at least one collapsible link linearly along said camshaft, circumferentially around said cam of said camshaft in sequential manner, or a combination thereof.

35. The method for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power claim 27, further comprising the steps of using said pump for pumping fluid to said turbocharger, allowing said compressor of said turbocharger to compress air.

36. The method of for providing auxiliary hydraulic pumping power to activate a turbocharger having a turbine and a compressor when the turbine cannot provide sufficient power claim 27, further comprising the steps of: providing an accumulator; using said pump to build fluid pressure in said accumulator; and using said accumulator to store fluid under pressure and deliver fluid to said turbocharger, allowing said compressor of said turbocharger to compress air.