RU2821689C1 - Hydraulic pump or motor (versions) - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: group of inventions relates to hydraulic pumps or engines. Hydraulic pump (48) or motor with mounting configuration for increasing torque comprises shaft (58) defining longitudinal axis (64), axis Y extending upwards and at right angle from axis (64), and axis X passing at right angle to axis (64) and axis Y, housing (60) having a first longitudinal end, a second longitudinal end and a cavity extending from the first longitudinal end to the second longitudinal end, several mechanical components, including one interacting with hydraulics, which are arranged in cavity, and also cover of manifold attached to the second longitudinal end and forming inlet and outlet holes. Shaft (58) extends from the cavity beyond the first longitudinal end of housing (60). Mounting flange (78) is located at the first end of housing (60). Flange (78) forms a pair of slots for bolts located along axis X on both sides of shaft (58). Each slot of a pair of slots (80) for bolts has center (82) of radius and a guide ridge extending in a longitudinal direction from flange (78) and having diameter (88). Centers (82) are spaced apart by distance X (84). Ratio of dimension X (84) to diameter (88) ranges from 1.1 to 1.5.

EFFECT: group of inventions is aimed at increasing torque.

10 cl, 10 dwg

Description

Field of technology to which the invention relates

The present invention relates to hydraulic pumps or motors that are used in drive units and the like. In particular, the present invention relates to a method for mounting such pumps or motors that enables the pump or motor shaft to withstand increased torque.

State of the art

Drive units often use hydraulic pumps or motors to supply high-pressure hydraulic oil or convert high-pressure or high-flow hydraulic oil into high torque transmitted to a shaft. Hydraulic pumps or motors may be connected to a fan that moves air through the radiator to cool the coolant used to cool the engine. One way to improve cooling system efficiency is to run the fan faster, which requires higher torque and usually a larger hydraulic motor and/or pump.

However, engine room space may be limited and/or a larger hydraulic motor and/or pump may be more expensive, making the use of such a hydraulic motor and/or pump impractical. In addition, existing motors may need to be retrofitted with a more reliable motor without significantly changing the design of the drive unit.

As can be seen, there is currently a trade-off between increasing the cooling efficiency of the engine cooling system and the cost and/or size of the hydraulic motor.

Brief summary of the invention

In accordance with one embodiment of the present invention, a hydraulic pump or motor is provided that is mounted in a manner that provides increased torque. The hydraulic pump or motor may be provided with a shaft defining a longitudinal axis, a Y axis extending upward and at right angles from the longitudinal axis, and an X axis extending at right angles from the longitudinal axis and the Y axis. The housing may define a first longitudinal end, a second longitudinal end an end and a cavity extending from the first longitudinal end to the second longitudinal end. The cavity may house multiple mechanical components, including one hydraulically interacting component, and a manifold cover may be attached to the second longitudinal end to form the inlet and outlet ports. The shaft may extend from the cavity beyond the first longitudinal end of the housing, and a mounting flange may be located on the first longitudinal end of the housing. The mounting flange may have a pair of bolt slots located along the X-axis on either side of the shaft, the pair of bolt slots having a radius center X away from them. The guide may extend longitudinally from the mounting flange to define diameter of the guide, and the ratio of the X dimension to the diameter of the guide can be from 1.1 to 1.5.

In accordance with yet another embodiment of the present invention, a hydraulic pump or motor is provided that is mounted in a manner that provides increased torque. The hydraulic pump or motor may be provided with a shaft defining a longitudinal axis, a Y axis extending upward and at right angles from the longitudinal axis, and an X axis extending at right angles from the longitudinal axis and the Y axis. The housing may define a first longitudinal end, a second longitudinal end an end and a cavity extending from the first longitudinal end to the second longitudinal end. The cavity may house multiple mechanical components, including one hydraulically interacting component, and a manifold cover may be attached to the second longitudinal end to form the inlet and outlet ports. The shaft may extend from the cavity beyond the first longitudinal end of the housing, and a mounting flange may be located on the first longitudinal end of the housing. The mounting flange may define a pair of bolt slots located along an X-axis on either side of the shaft, wherein the pair of bolt slots may define a radius center spaced apart by an X dimension and a Y dimension defining the width of the slot. The ratio of dimensions X to dimensions Y can be from 9.5 to 9.8.

A hydraulic pump/engine fan assembly according to an embodiment of the present invention may include a shaft defining a longitudinal axis, a Y axis extending upward and at right angles to the longitudinal axis, and an X axis extending at right angles to the longitudinal axis and the Y axis. The housing may define a first longitudinal end, a second longitudinal end, and a cavity extending from the first longitudinal end to the second longitudinal end. The cavity may accommodate multiple mechanical components, including at least one hydraulically driven component. A manifold cover may be attached to the second longitudinal end, forming the inlet and outlet openings. The shaft may extend from the cavity beyond the first longitudinal end of the housing, and a mounting flange may be located on the first longitudinal end of the housing. The mounting flange may define a pair of bolt slots located along an X-axis on either side of the shaft, and the pair of bolt slots may define a radius center at a distance X therefrom. The guide may extend longitudinally from the mounting flange, determining the diameter of the guide, and the ratio of the dimension X to the diameter of the guide may be from 1.1 to 1.5.

Brief description of drawings

The explanatory drawings, which are included in and are a part of this specification, illustrate several embodiments of the invention and, together with the description, serve to explain the principles of the invention. On the drawings:

rice. 1 is a perspective view of a hydraulic excavator that may employ an engine with a hydraulic pump or motor mounted in a manner capable of transmitting increased torque, in accordance with various embodiments of the present invention;

rice. 2 - represents a schematic view of the excavator engine in Fig. 1, shown as is, illustrating the operation of a hydraulic motor pump driving a hydraulic fan motor;

rice. 3 is a perspective view of the hydraulic pump with fan in Fig. 2, presented in isolation;

rice. 4 - left view of the hydraulic pump with fan in Fig. 3, which shows the mounting flange, bolt slots and guide ring;

rice. 5 - shows a front cross-sectional view of the hydraulic pump with fan in Fig. 3, which shows an O-ring in a groove extending along the periphery of the guide lip;

rice. 6 is a perspective view of a hydraulic pump with fan in accordance with another embodiment of the present invention mated to the female thread of a mounting member;

rice. 7 - cross-sectional side view of the hydraulic pump with fan and mounting element with internal thread in Fig. 6;

rice. 8 - left view of the hydraulic pump with fan in Fig. 6 is shown without the mounting element with internal thread;

rice. 9 - right view of the mounting element with internal thread shown in Fig. 6, shown without pump;

rice. 10 is a cross-sectional view of the mounting element with internal thread shown in Fig. 9;

Detailed Description of the Invention

The following will discuss in detail the practical embodiments of the present invention, examples of which are shown in the accompanying drawings. Where possible, the same numbers are used throughout the drawings to identify the same or similar parts. In this specification, the reference number is indicated, and in the drawings, the reference number is followed by a letter, such as 100a, 100b, or a simple letter, such as 100', 100'', etc. It should be understood that the use of letters or simple numbers immediately after the reference number indicates that these features have a similar form and similar function, as is often the case when geometry is mirrored with respect to a plane of symmetry. For convenience of presentation in the description of the present invention, letters and simple words are often not included in the text, but may be shown in the drawings to indicate duplication of elements having similar or identical function or geometry discussed in this description.

Discussed herein are various embodiments of a hydraulic pump or motor assembly, a hydraulic motor/fan assembly, and a drive unit constructed in accordance with various embodiments of the present invention that may violate the above trade-off between pump or motor size/cost and output/input torque. to increase the cooling capacity of the engine, which will be briefly discussed. A typical machine in which these options can be applied, such as a hydraulic excavator, will be considered first, with the understanding that these options can be used in any suitable machine, including a diesel engine in an electric locomotive, a bulldozer, or other heavy equipment used in the marine, earthmoving, construction and mining industries.

Starting from Fig. 1, a work machine 20 is shown, which may include an engine 22 configured to supply power to the machine, such as a diesel engine, a gasoline internal combustion engine, a natural gas engine, an electric motor, and other known power sources, or combinations thereof, among others. Additionally, in one embodiment of the present invention, machine 20 includes a frame 24 that provides support for engine 22, operator compartment 26, and other similar components of work machine 20. Additionally, operator compartment 26 is completely enclosed or, in some cases, enclosed. a semi-enclosed area in which the operator of machine 20 can sit and/or stand while operating machine 20.

In addition, the operator compartment 26 is typically configured to accommodate a set of controls 28, such as a joystick, a foot pedal, a lever, a steering wheel, and other similar controls, among others. Operation controls 28 are used by the operator to operate and maneuver work machine 20. In some embodiments, operator compartment 26 further includes one or more visual display devices 30 that display or otherwise communicate information to the operator of machine 20.

In addition, the work machine 20 includes a set of grouser members 32 for gripping the soil 15 operatively coupled to the frame 24. In one non-limiting example, the machine 20 includes lug members 32 configured as a set of tracks. However, instead of tracks, wheels or other similar elements providing movement are possible. The lug members 32 are driven by the motor 22 to drive the working machine 20 in the desired direction. In addition, the lug members 32 may be operatively coupled to one or more controls 28 such that the lug members 32 can be actively controlled to propel and maneuver the work machine 20 across the work platform 33.

In addition, the work machine 20 may include at least one work tool 34, such as a bucket, drill, saw, forklift, hammer, auger, grab, or other similar tool, operatively attached to the frame 24 or other part of the work machine 20, among others. others. In one non-limiting example, the work tool 34 is coupled to the frame 24 by a rod 36 and an actuator arm 38. The rod 36 and an actuator arm 38 include one or more power cylinders 40 that are configured to lift, lower, dig, drop or performing other similar actions of the working tool 34.

Let us now turn to Fig. 2 for a closer look at the engine parts. Engine 22 includes a main hydraulic pump 48 that supplies pressurized hydraulic fluid/oil (through hydraulic lines 47) to a hydraulic motor/fan assembly 46 that drives a fan 49 to force air through the radiator assembly 50 where the coolant cooled and supplied to the engine cooling system (via cooling lines 52). Also provided is an ECU (electronic control unit) 54 that interfaces with various systems of the engine 22, including the hydraulic and cooling systems. In particular, one or more valves 55 may be provided in the hydraulic motor/fan assembly to control its operation.

Next, in Fig. 3 and 4, details of the hydraulic pump/fan assembly 48, including shaft 58, housing 60, and manifold cover 62, can be seen.

The shaft 58 may include a body of rotation (e.g., cylindrical, conical, etc.) forming a longitudinal axis 64 (see Fig. 3), a Y axis extending upward and at right angles to the longitudinal axis 64 (see Fig. 4 ), and an X axis extending at right angles to the longitudinal axis and the Y axis.

As shown in Fig. 3, housing 60 may have a first longitudinal end 66, a second longitudinal end 68, and a cavity 70 (shown in hidden lines) that extends from the first longitudinal end 66 to a second longitudinal end 68. That is, the cavity 70 may have a portion extending entirely through the housing 60 Cavity 70 of housing 60 may accommodate multiple mechanical components (see lines 71), including at least one hydraulically driven component. Examples of such components may include at least one of the following: a vane, a piston, a rotary plate, etc.

The manifold cover 62 may be attached (eg, by fasteners) to the second longitudinal end 68 and may define an inlet 72 and an outlet 74 (see Figure 3). The shaft 58 may extend from a cavity 70 of the housing 60 and extend past the first longitudinal end 66 of the housing 60.

When the engine is running, hydraulic fluid/oil enters and drives the internal components of the engine and then flows out. The internal components of the motor are mechanically connected to the shaft, which then begins to rotate. The end of the shaft interacts with the fan hub or other component mechanically coupled to the hub to drive the fan. The opposite picture is observed when the pump is running. The pump shaft can be driven by a motor, which in turn rotates the internal components of the pump, creating hydraulic pressure and flow. One example of part of such an interface between the motor and the pump is shown in Fig. 3 in the form of the open free end of the shaft 58 on which the teeth 76 are located. In other embodiments of the present invention, other types of interfaces are possible, including splines, press fits, fastenings, etc.

Now let's look at Fig. 4: At the first longitudinal end 66 of the housing, a mounting flange 78 may be located defining a pair of bolt mounting slots 80 located along the X-axis on either side of the shaft 58. The pair of bolt mounting slots 80 may have a center of radius 82 spaced therefrom by an X dimension 84 (that is, the dimension is measured along the X axis), and a guide 86 extending longitudinally from the mounting flange 78 for mounting a guide cavity 87 of the fan assembly 50 (see Fig. 5).

As shown in Fig. 4, the guide 86 may determine the diameter of the guide 88, and the ratio of the dimension X 84 to the diameter of the guide 88 in some embodiments of the present invention may be from 1.1 to 1.5 (eg, 1.3). In this case, each of the pair of bolt slots 80 defines a dimension Y 90, and the ratio of dimension X 84 to dimension Y 90 in some embodiments of the present invention may be from 9.5 to 9.8 (eg, 9.67).

The capacity of hydraulic motor with fan can be 25-50 cm3/rev, while size X 84 is from 148.0 to 152.0 mm (eg 150.0 mm), size Y 90 is from 15.0 to 16.0 mm (eg 15.5 mm), and the diameter of the guide 88 is from 112.0 to 115.0 mm (eg 113.45 mm). In other embodiments of the present invention, other containers and sizes are possible.

With this size and power, the shaft 58 can transmit torque in excess of 500 Nm (Newton meters). As can be seen in Fig. 5, an O-ring 92 may also be provided configured to fit into the guide lug 86. This O-ring 92 may have an internal diameter 94 ranging from 104.0 mm to 108.0 mm (eg, 107.62 mm). In addition, the diameter of the cross section 95 of the seal ring 92 may be less than the width 97a of the seal mounting groove 97 that extends along the periphery of the guide lip 86.

As shown in Fig. 5, the guide 86 may be monolithic, which requires the O-ring 92 to expand and slide along the free end of the guide until it is seated in the groove 97. However, in other embodiments of the present invention, the guide 86 may be divided into the groove 97 (along radially, dividing the lug into two parts) to facilitate installation of the O-ring 92. In this embodiment, the end portion of the guide lug is attached to the rest of the guide lug after installing the O-ring 92 in the groove 97.

In order to withstand the increased torque, a pair of M14 96 bolts are used (see Fig. 4), which can pass longitudinally through each of the pair of slots 80 to secure the pump to the fan assembly. Additionally, a bias control valve or bias limiting mechanism 98 (see Figure 3) may be attached to a housing 60 that is in fluid communication with the cavity 70 and/or the inlet or outlet of the manifold cover 62 in some embodiments of the present invention, but not in others.

Likewise, a solenoid valve assembly 100 may be attached to the housing 60 in fluid communication with the cavity 70 and/or manifold cover 62 to control engine operation.

The manifold body and cover may be cast or molded from any suitable material, including, but not limited to, steel, aluminum, cast iron, and thermoplastics.

Any sizes, configurations, materials, etc. discussed herein may be changed as necessary or desired, and differ from any values or characteristics specifically mentioned herein or shown in the drawings for any of the embodiments of the present invention.

Next, we will consider a hydraulic pump or motor, the mounting method of which ensures mating with the internal thread of the mounting element to create an assembly that guarantees increased torque, as discussed earlier in this description. It should be understood that a given node may have features, properties, dimensions and relationships of previous nodes mentioned herein, even if they are not explicitly shown in the graphics.

As can be seen from Fig. 6-8, assembly 200 may include a shaft 202 defining a longitudinal axis 204, a Y axis 206 extending upward and at right angles from the longitudinal axis 204, and an X axis 208 extending at right angles from the longitudinal axis 204 and the Y axis 206.

Housing 210 may have a first longitudinal end 212 and a second longitudinal end 214. Although not shown in Fig. 6 and 8, it should be understood that the cavity extending from the first longitudinal end 212 to the second longitudinal end 214 may contain several mechanical components, including one hydraulic component, as shown and described previously with respect to fig. 3.

As shown in Fig. 7, the shaft 202 extends from the cavity beyond the first longitudinal end 212 of the housing 210, and a mounting flange 216 may be located at the first longitudinal end 212.

As can be seen in Fig. 8, the mounting flange 216 may define a pair of bolt mounting slots 218 located along an X-axis on either side of the shaft 202. The pair of bolt mounting slots 218 have a center radius of 220 and are spaced apart by a distance X 222, and a guide lug 224 may extend longitudinally from the mounting flange 216, defining the diameter of the guide lip 226. The ratio of the dimension X 222 to the diameter of the guide lip 226 is from 1.1 to 1.5.

Housing 210 may be attached to an internally threaded mounting member 300, which has a guide mounting cavity 302 mated to guide lug 224 (see Figure 7). As can be seen from Fig. 9, the first threaded hole 304 is aligned with the center of the assembly radius 220, while the second threaded hole 304a is aligned with the center of the assembly radius 220, for installing mounting elements as described previously herein.

In some embodiments, the ratio of dimension X to the size of the guide lug mounting cavity is also between 1.1 and 1.5. In this case, the capacity of the hydraulic pump or hydraulic motor can be 25-50 cm ³ /rev, the X dimension can be from 148.0 to 152.0 mm, and the guide diameter can be from 112.0 to 115.0 mm. This can provide the shaft with the ability to receive or transmit torque in excess of 500 Nm. In other embodiments of the present invention, other ranges of ratios and sizes may be used to provide different amounts of torque, etc.

As shown in Fig. 5, in any embodiment of the present invention, the guide 86 may have a free end 228 and an O-ring groove (for example, see 97) spaced longitudinally from the free end 228. An O-ring may extend from the free end 228 toward the O-ring groove chamfer 230. This chamfer 230 may be at a minimum longitudinal distance 231 from the O-ring groove, which is from 1.0 to 1.4 mm (for example, 1.2 mm). The O-ring groove (eg see 97) can have a diameter (eg see 94) from 108.0 to 111.0 mm (eg 109.5 mm) and an axial width (eg see 97a) from 3 .4 to 3.7 mm (e.g. 3.58 mm). After assembly, the O-ring can be placed in the O-ring groove to prevent leakage. The guide protrusion may have an overall longitudinal length 232 that is between 10.0 and 11.0 mm (eg, 10.5 mm).

In addition, any of the embodiments discussed herein may employ a different set of materials, characteristics, ratio ranges, or sizes than those discussed herein.

Industrial Applications

In practice, a drive unit, hydraulic motor/fan assembly, internal threaded mounting part, and/or hydraulic pump assembly constructed in accordance with any embodiment described herein may be sold, purchased, manufactured, or otherwise obtained on an OEM basis. equipment manufacturer) or after-sales service. In some cases, these various components are a motor assembly, a hydraulic motor/fan assembly, a hydraulic pump assembly, etc. can be supplied as a kit for repairing or retrofitting the machine under operating conditions.

Moreover, embodiments of the hydraulic pump or hydraulic motor presented in the present invention can be installed in existing engines and/or machines, unexpectedly breaking the trade-off between size/cost and torque (and cooling efficiency) discussed earlier herein, and now will be discussed in detail with reference to Fig. 3 and 4.

It should be understood that engine components can also be used as a pump, providing reverse flow of hydraulic fluid and pressurizing the fluid by applying torque to the shaft rather than receiving torque from the shaft.

Such a hydraulic pump or hydraulic motor in accordance with one embodiment of the present invention (eg, hydraulic motor/fan assembly 48) may include a shaft 58, a housing 60, and a manifold cover 62, as previously described herein.

Several mechanical components, including one hydraulic component (eg, see lines 71) are housed in the housing (eg, piston, vane, rotary plate, etc.).

The mounting flange 78 may define a pair of bolt slots located along an X-axis on either side of the shaft, the pair of bolt slots 80 and each of them defining a center of a radius 82 spaced therefrom by an amount X 84. The guide 86 may extend longitudinally from the mounting flange 78 to form the diameter of the guide 88, and the ratio of the dimension X 84 to the diameter of the guide 88 in some embodiments of the present invention may be from 1.1 to 1.5 (eg, 1.3).

In addition, the ratio of the X 84 dimension to the Y 90 dimension in some embodiments of the present invention may be from 9.6 to 9.8 (eg, 9.67). The capacity of the hydraulic pump or motor is 25-50 cm ³ /rev, size X 84 can be from 148.0 to 152.0 mm (for example, 150.0 mm), size Y 90 can be from 15.0 to 16, 0 mm (eg 15.5 mm), and the diameter of the guide 88 may be from 112.0 to 115.0 mm (eg 113.45 mm).

As a result of this configuration, the shaft 58 can receive or transmit a torque of more than 500 N·m.

Such a hydraulic pump or hydraulic motor in accordance with yet another embodiment of the present invention (eg, hydraulic motor/fan assembly 48) may include a shaft 58, a housing 60, and a manifold cover 62, as described previously herein.

In this embodiment, the ratio of dimension X 84 to dimension Y 90 may be from 9.5 to 9.8 (for example, 9.67), and the ratio of the diameter of the guide 88 to dimension Y 90 may be from 7.3 to 7. 5 (for example, 7.4).

In such an embodiment of the present invention, the hydraulic pump or motor may have a capacity of 25-50 ^cc /rev, the X dimension may be from 148.0 to 152.0 mm, the Y dimension 90 may be from 15.0 to 16.0 mm , and the diameter of the guide protrusion can be from 112.0 to 115.0 mm, as already described herein.

In this embodiment of the present invention, the shaft 58 can also receive or transmit a torque greater than 500 N·m.

In addition, a mounting element with internal thread can be supplied as a spare part. It should be understood that internally threaded mounting member features may be replaced by corresponding housing features, and vice versa, in various other embodiments of the present invention.

The same mounting element with internal threads can be described as shown in Fig. 9 and 10. The internally threaded mounting member may include a body that defines a cavity for receiving projections 302 with a cavity diameter of D302, and a first threaded hole 304 with a first threaded hole diameter of D304. The ratio of the diameter of the cavity D302 to the diameter of the first threaded hole D304 can be from 8.0 to 8.15.

In this case, the diameter of the cavity D302 can be from 112.0 to 115.0 mm (for example, 114.0 mm), and the diameter of the first threaded hole D304 can be from 13.0 to 15.0 mm (for example, 14.0 mm ).

As shown in Fig. 10, cavity 302 may extend entirely through the housing, but is not required to do so.

In specific embodiments of the present invention, the first threaded hole 304 is a 30.0 mm deep M14 threaded hole. In other embodiments of the present invention, this may look different. The second threaded hole 304a (which may have the same or identical configuration as the first threaded hole) may be offset from the center by a minimum distance 306. The ratio of the minimum center distance to the diameter of the cavity D302 in some embodiments of the present invention may be between 1.30 up to 1.35. In this case, the minimum distance between centers 306 may be from 140.0 to 160.0 mm (for example, from 148.0 to 152.0 mm for a nominal value of 150.0 mm).

Any of the above elements may have a different configuration or other ranges of ratios and sizes other than those described. The internally threaded mounting member may be made of any suitable material as described earlier herein with respect to the housing, etc.

It will be apparent to those skilled in the art that various modifications and variations may be made to the inventive embodiments of the apparatus and assembly methods discussed herein without departing from the scope or spirit of the invention(s). Other embodiments of the present invention will be apparent to those skilled in the art from consideration of the specification and practice of the various embodiments of the present invention disclosed herein. For example, some equipment may be designed and operated differently than described herein, and some method steps may be omitted, performed in a different order than specifically stated, or in some cases performed concurrently or as auxiliary steps. Moreover, variations or modifications to certain aspects or features of various embodiments of the present invention may be made to create further embodiments, and features and aspects of various embodiments of the present invention may be added to or replaced by other features or aspects of other embodiments of the present invention to provide even more options.

Accordingly, it is intended that the specification and examples be considered indicative only and that the true scope and spirit of the invention(s) are determined by the following claims and their equivalents.

Claims (20)

1. A hydraulic pump (48) or motor (46) in a torque increasing mounting configuration comprising: a shaft (58) defining a longitudinal axis (64), a Y axis extending upward and at right angles to the longitudinal axis (64), and an X axis extending at right angles to the longitudinal axis (64) and the Y axis; a body (60) having a first longitudinal end (66), a second longitudinal end (68) and a cavity (70) extending from the first longitudinal end (66) to the second longitudinal end (68); several mechanical components (71), including one hydraulically interacting component, which are located in the cavity (70); and a manifold cover attached to the second longitudinal end (68) and defining inlet (72) and outlet (74) openings, wherein the shaft (58) extends from the cavity (70) beyond the first longitudinal end (66) of the housing (60), and a mounting flange (78) is located at the first end of the housing (60), wherein the mounting flange (78) forms a pair of slots for bolts located along the X-axis on both sides of the shaft (58), each slot of a pair of bolt slots (80) having a center (82) of radius, wherein the radius centers (82) of the bolt slots are spaced apart by a distance X (84), and a guide (86) extending longitudinally from the mounting flange (78) and having a guide diameter (88), wherein the ratio of the X dimension (84) to the guide diameter (88) is from 1.1 to 1.5. 2. The hydraulic pump (48) or motor (46) of claim 1, wherein each of the pair of bolt slots (80) has a Y dimension (90) and the ratio of the X dimension (84) to the Y dimension (90) is between 9.6 to 9.8. 3. Hydraulic pump (48) or motor (46) according to claim 2, which has a capacity of 25-50 cm ³ /rev., while size X (84) ranges from 148.0 to 152.0 mm, size Y ( 90) is from 15.0 to 16.0 mm, and the diameter (88) of the guide is from 112.0 to 115.0 mm. 4. Hydraulic pump (48) or motor (46) according to claim 3, in which the shaft (58) is capable of receiving or transmitting a torque of more than 500 N⋅m. 5. The hydraulic pump (48) or motor (46) of claim 1, wherein the plurality of mechanical components (71), including one hydraulically interacting component, housed in a housing (60) include at least one of the following: : blade, piston and turning plate. 6. A hydraulic pump (48) or motor (46) with a mounting configuration for increased torque, comprising: a shaft (58) defining a longitudinal axis (64), a Y axis extending upward and at right angles to the longitudinal axis (64), and an X axis extending at right angles to the longitudinal axis (64) and the Y axis; a body (60) having a first longitudinal end (66), a second longitudinal end (68) and a cavity (70) extending from the first longitudinal end (66) to the second longitudinal end (68); several mechanical components (71), including one hydraulically interacting component (71), which are located in the cavity (70); and a manifold cover attached to the second longitudinal end (68) and defining inlet (72) and outlet (74) openings, wherein the shaft (58) extends from the cavity (70) beyond the first end of the housing (60), and a mounting flange (78) is located at the first end of the housing (60), wherein the mounting flange (78) forms a pair of slots (80) for bolts located along the X axis on both sides of the shaft (58), each slot of a pair of bolt slots (80) having a radius center (82), the bolt slot radius centers (82) being spaced apart by a dimension X ( 84), each slot of a pair of bolt slots (80) having a dimension Y (90) defining the width of the slot (80), the ratio of dimension X (84) to dimension Y (90) being from 9.5 to 9, 8. 7. The hydraulic pump (48) or motor (46) according to claim 6, wherein the mounting flange (78) further has a guide lip (86) having a guide lip diameter (88), wherein the ratio of the guide lip diameter (88) to size Y (90) is from 7.3 to 7.5. 8. Hydraulic pump (48) or motor (46) according to claim 7, which has a capacity of 25-50 cm ³ /rev., while dimension X (84) ranges from 148.0 to 152.0 mm, dimension Y ( 90) is from 15.0 to 16.0 mm, and the diameter (88) of the guide is from 112.0 to 115.0 mm. 9. Hydraulic pump (48) or motor (46) according to claim 8, in which the shaft (58) is capable of receiving or transmitting a torque of more than 500 N⋅m. 10. The hydraulic pump (48) or motor (46) of claim 6, wherein the plurality of mechanical components (71), including one hydraulically interacting component, housed in a housing (60) include at least one of the following: : blade, piston and rotary plate.