JP5456916B1 - Road-mounted hydroelectric generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a road-installed hydroelectric generator that realizes a power generation action by utilizing kinetic energy (disposable energy) of a vehicle traveling on a road.
A converter 30 that converts pressure fluid energy of hydraulic fluid into rotational force is installed in a circulation pipe line 100 that circulates hydraulic fluid, and a generator 40 is driven by the converter. The circulation piping 100 is configured to include road surface pipes 11 laid on the road surface S1 of the road ST through which the vehicle passes, and the road surface pipes 11 are in a surplus kinetic energy state of the vehicle such as a downhill road. A place is selected and installed, and electric power is generated by causing the rolling motion of the tire of the vehicle traveling on the road ST to act on the road surface pipes 11.
[Selection] Figure 2

Description

The present invention, roads pressure fluid the hydraulic fluid using the excess kinetic energy of the vehicle traveling, whereby on Road-mounted hydraulic power unit of which is adapted to realize the power generating action.

  Negative views are becoming dominant on the debate as to whether nuclear power can be used in the future. This is also a global trend, and some countries have finalized the conclusion of nuclear abolition early. In light of this situation, development of micro hydropower generation technology is being promoted as an item of renewable national energy policy.

  Although the meaning of today's term of micro hydropower generation is not necessarily clear, natural water flow is used without relying on the establishment of a dam with huge natural destruction, which is a common argument for opposition to hydropower generation. Therefore, it can be said that there is no objection to including the purpose of implementing regional small-scale power generation. However, even in Japan, which is blessed with abundant water, there are not many areas that can utilize natural water currents that satisfy the conditions that can be used for power generation.

  The present invention has been made by paying attention to the surplus kinetic energy of countless vehicles that can be observed as if water flows through a road network that extends throughout the country. The surplus kinetic energy of the vehicle mainly means deceleration energy during braking. In addition, the concept itself of generating power using the behavior of a vehicle traveling on a road is already known, and specifically, there is a proposal example as shown in the following prior art document column.

JP 2011-152024 A JP 2004-360668 A JP 2005-299434 A

  A permanent magnet or induction coil is installed on the vehicle side, and an induction coil or permanent magnet corresponding to the permanent magnet or induction coil arranged on the vehicle side is installed on the road side. The method of generating an electromotive force in the induction coil (see Patent Document 1) can be said to be the most direct power generation method that directly realizes the electromagnetic induction principle related to the discovery of Sophia Faraday et al. In the early days of electromagnetics.

  The biggest problem of the above power generation method is that the distance between the permanent magnet installed on the road side or the vehicle side and the induction coil installed on the vehicle side or the road side can expect an effective power generation effect. It is in the point that it cannot be made to approach to the distance of. Regarding the power generation action by electromagnetic induction, it is advantageous that the larger the magnetic energy of the permanent magnet, the higher the coil quality, and the narrower the gap between the permanent magnet and the induction coil. It has been approved both theoretically and empirically.

  In this document, the installation location of the road-side permanent magnet and the induction coil is not limited to the road surface, but may be a guard rail. The road clearance in the vehicle is set appropriately in consideration of the use of the vehicle and the suspension stroke, etc., and a policy that generally reduces the load clearance of the vehicle is adopted to make the power generation action advantageous. It is impossible to give general guidance to run as close to the guardrail as possible. This is the reason why the power generation method disclosed in this document cannot expect a realistic power generation action. In a general generator design site using a combination of a permanent magnet and an induction coil, it should be understood why efforts are made to make the gap between the two close to each other in millimeters.

Here, further consideration is made on the assumption that an effective power generation operation is realized with the configuration disclosed in Patent Document 1. The induced current flows through the induction coil due to the relative movement between the permanent magnet and the induction coil due to the behavior of the vehicle. It is known that the induced current is generated in a direction that prevents the relative movement between the permanent magnet and the induction coil. ing. In other words, when an effective power generation operation is realized with the configuration disclosed in Patent Document 1, it is inevitable that an electromagnetic braking force acts on the vehicle. As a result, the driver of the vehicle has to step on the accelerator excessively, which leads to a deterioration in fuel consumption and an increase in exhaust CO ₂ .

  A proposal to install a passive base that can move up and down on the road surface that the vehicle passes through, and to drive the generator by converting the vertical movement of the passive base that is caused by the passing of the vehicle into a rotational motion by a crank mechanism or gear 2), there is a fatal problem that the operation timing of the crank mechanism and the vehicle passage timing cannot be synchronized.

  In general, a crank mechanism is a mechanism that maintains a rotational motion in a predetermined direction by periodically applying pressure to the upper and lower reciprocating members at the timing when the upper and lower reciprocating members constituting the crank mechanism pass the top dead center. However, when the pressure applied to the upper and lower reciprocating members depends on the passage of the vehicle whose passage timing is indefinite, expect the convenience that the vehicle passes in accordance with the timing when the upper and lower reciprocating members pass the top dead center. I can't. As a result, for example, when the vehicle passes at a timing when the upper and lower reciprocating members are moving toward the top dead center, the crank mechanism cancels the energy received from the immediately preceding vehicle, and further the crank mechanism is reversed. It is easily guessed that the inconvenience will occur frequently.

  In addition, as another problem, it is inevitable that a bottoming impact corresponding to the stroke of the crank mechanism is given to the vehicle passing on the passive board. In addition, as claimed in the same document, when multiple passive boards are installed, the adverse effects of this bottoming impact will have to be pointed out as a larger negative evaluation point. The bottoming impact not only makes the driver uncomfortable, but also exerts a braking action on the vehicle due to tire deformation resistance and the like.

  In the same document, the term “gear” that converts the vertical movement of the passive base to rotational motion is listed alongside the crank mechanism, but a simple gear does not have a function to convert reciprocating motion to rotational motion. Therefore, it is not clear what the mechanism is specifically by simply describing “gear” without the accompanying drawings.

  The water circulation type hydroelectric generator disclosed in Patent Document 3 is basically configured to obtain energy for power generation from the water supply pressure of the water supply. However, it is not an invention that uses the operation of a vehicle.

It can be said that the cumulative number of vehicles passing per unit time of vehicles passing through major roads throughout the country, especially the main street specialization stations in each region, is enormous. In other words, if surplus kinetic energy of a vehicle group that flows like a river flow can be effectively used for power generation, it is clean and enormous without fear of new CO ₂ generation other than CO ₂ generated by the vehicle. There is a possibility to cover a large amount of electric energy. Regardless of whether or not they are expressed directly, the above-described prior art examples will also be based on invention triggers or invention motives based on such analysis.

  Installing a nuclear power plant or a thermal power plant is easy in a sense because it is only necessary to implement the technology already established for that purpose from the beginning. However, it is extremely difficult to achieve power generation using existing facilities and devices that have been completed for purposes completely different from those for power generation.

  As described above, since the prior art examples shown in Patent Document 1 and Patent Document 2 cannot solve the above-mentioned difficult problems, they must be evaluated without practical effectiveness. That is, the electromotive action by the combination of the permanent magnet and the coil, and the configuration in which the generator is driven by the crank mechanism are already probable and commonly used in the automobile industry field, etc. There is no problem with the ability to achieve power generation. The problem of not being able to generate power that is practically effective is caused solely by trying to use a vehicle that is an existing device that passes through a specific point on the road, which is an existing facility, at irregular intervals. ing.

An object of the present invention is to provide a road installation type hydropower device which can realize the power generating action by utilizing wheel drive vehicle traveling on the road.

  As problems to be overcome in order to achieve the above object, firstly, there is no adverse effect such as an impact or a braking action on a vehicle running on a road. The solution to this problem is to transfer energy between the vehicle and the hydroelectric generator of the present invention using a medium that exhibits shock absorption. Moreover, since it is premised on the existing road installation type | mold, it makes it a subject to minimize the trouble with respect to traffic regarding installation.

  In addition, as long as the kinetic energy of the vehicle is used, it is inevitable to exert a braking action on the vehicle. It can be considered that this problem can be dealt with by capturing and utilizing the time when the kinetic energy of the vehicle becomes excessive. In the present invention, such a state is referred to as surplus energy of the vehicle, and it is sufficient to deal with it by installing the hydroelectric power generation device of the present invention at a specific location on the road where the vehicle normally uses a brake.

  In order to realize a practically effective power generation operation, it is necessary to receive energy from the vehicle to some extent, not transiently. It can be considered that this problem can be dealt with by adopting a structure that is easy to elongate along the road in terms of structure. That is, the realization of such a configuration is a problem.

  In addition, in order to receive energy that is sufficient to realize a practically effective power generation action from a group of vehicles that are mixed in large and small sizes and that pass irregularly and intermittently, it is necessary to store concentrated energy and to pass the vehicle through The component which discharge | releases the energy stored when this falls is required, and the structure which has such an energy leveling function is a subject.

Furthermore, when a liquid phase substance is selected as a pressure medium that does not give an impact to the vehicle, in principle, a configuration that does not require continuous supply of the liquid phase substance is a problem.
Therefore, the present invention provides a mechanism for exchanging a large amount of surplus kinetic energy of a vehicle via a pressure medium. Since it is required and entails significant restrictions on the grounding location, the object is to efficiently use this disposable energy for power generation.

In order to solve the above-mentioned problems, the present invention provides an elastic water passage means for supplying hydraulic fluid to a road or ground on which the vehicle passes, and causes the rolling motion of the wheels of the traveling vehicle to act on the elastic passage. The hydraulic fluid of the water channel means is converted to pressure fluid, and the generator is driven by the hydraulic fluid converted to pressure fluid, and the elastic water channel means surrounds the piping on a mat for laying on the road or the ground. A plurality of concave stripes are formed, and a plurality of pipes are respectively arranged in the concave stripes, and the plurality of pipes are contracted when the vehicle steps on a laying mat. Further, an elastic water passage that sends hydraulic fluid to the road or the ground through which the vehicle passes is laid, and the hydraulic fluid of the elastic water passage is converted into pressure fluid by causing the rolling motion of the wheels of the traveling vehicle to act. The elastic water passage means is composed of upper and lower mats and a plurality of pipes between the upper and lower mats. is disposed Rutotomoni, the upper and lower mat, mat on top of the mat under the rubber of rubber is in the configuration in which the lid has a configuration in which the upper and lower mat does not move with each other, the vehicle is laid It is characterized in that a plurality of pipes are contracted by stepping on a mat. And this invention, the circulation piping which circulates the hydraulic fluid with which the inside was filled, and the converter which is interposed in this circulation piping and converts the pressure fluid energy of the pressurized hydraulic fluid into rotational force, And the generator is driven by the converter, and the circulation pipeline is configured to include easily deformable water passage means that is laid on the road surface of the road through which the vehicle passes and sends hydraulic fluid, A rolling motion of a wheel of a vehicle traveling on a road is caused to act on the water passage means to convert the hydraulic fluid of the water passage means into a pressure fluid, and electric power is generated by the pressure fluidized hydraulic fluid.

The above solution means the basic components of the present invention and the basic mechanism by which the surplus kinetic energy of the vehicle traveling on the road eventually drives the generator.
Constituent members included in the above solution are a hydraulic fluid, a circulation pipeline, a converter, and a generator. The hydraulic fluid is a pressure medium filled in the circulation pipeline, and it is sufficient if it exhibits a liquid phase at least at normal temperature and pressure.
The significance of the circulation pipeline is that the hydraulic fluid once used for the power generation operation is configured to be circulated and reused without being discarded. The circulation pipeline that satisfies this requirement may be a closed-loop pipeline that is cut off from the atmosphere or an open-loop pipeline that is open to the atmosphere. However, it is a necessary requirement that the circulation pipe line includes easily deformable road surface pipes. The easily deformable road surface pipes follow the traveling direction of the vehicle on the road surface through which the vehicle passes. It is also necessary to be laid.

  As the water passage means, easily deformable road surface piping can be used. An easily deformable road surface pipe is a pipe that easily deforms without generating a large deformation drag due to the ground pressure of the vehicle tire, regardless of whether the material used is an elastic body or an inelastic body. Preferably there is. Further, the water passage means preferably exhibits an elastic force such as rubber and has a water passage through which hydraulic fluid is sent. The water passage may be provided with piping or not. Further, although there is no change in deformation and elasticity in a passenger car in relation to the vehicle weight, it may be structured to be deformed by the load when a large truck or large bus passes (FIG. 12).

  The converter is a converter that outputs a mechanical rotary motion by the pressure of a fluid, and the purpose of the converter is to drive a generator. The type and capacity of the converter are determined in other ways depending on the mode of pressure fluid acting on the converter and the fluctuation range. Accordingly, the present invention in which the volume and pressure of the fluid acting on the converter are not essentially fixed is not particularly limited, and may be determined according to the actual implementation scale or the like. The same applies to the type and capacity of the generator driven by the converter.

  A circulation pipeline for circulating the hydraulic fluid includes a converter that converts the pressure of the fluid into a mechanical rotary motion to drive the generator, and an easily deformable road surface pipe or an elastically deformable elastic water passage means. According to the configuration of the present invention in which the easily deformable water passage means is laid along the traveling direction of the vehicle on the road surface through which the vehicle passes, the vehicle passes over the road surface piping. By doing so, the hydraulic fluid filled in the road surface piping can be driven in the traveling direction of the vehicle. This is based on the same principle as the tube container extruding operation or squeezing operation.

  The hydraulic fluid driven by the vehicle is converted into a pressure fluid having a flow rate approximately equal to the traveling speed of the vehicle and acts on the converter. The converter in this configuration is a so-called dedicated machine for converting fluid pressure into mechanical rotational force. The energy of the hydraulic fluid converted to pressure fluid is converted into rotational force, and a generator is sent to the machine for a predetermined power demand. Can be covered. The circulation pipeline functions to return the hydraulic fluid that has passed through the converter to the water channel means. As a result, when the vehicle continuously passes on the road pipe or the elastic water passage means, a predetermined amount of power generation can be maintained without supplying or discharging hydraulic fluid. However, it is inevitable that the output of the generator is fluctuating, but today such a problem can be easily solved electrically.

According to the present invention, it is preferable that the water passage means is disposed on a laying mat laid on a road, and when the vehicle steps on the laying mat, the hydraulic fluid in the water passage means is sent in the traveling direction of the vehicle.
According to the present invention, when the vehicle steps on the laying mat, the hydraulic fluid can be efficiently delivered by reducing the diameter of the elastic water passage portion.

According to the present invention, the water passage means is arranged as a plurality of pipes on a mat for laying on the road, and when the vehicle steps on the mat for laying, a convex member that sequentially presses the plurality of pipe portions is provided. It is preferable to be provided.
According to the present invention, when the vehicle steps on the laying mat, a convex member that sequentially presses the plurality of pipe portions is provided, and by reducing the diameter of the elastic water passage portion by the convex member, a plurality of the convex portions are provided. The hydraulic fluid can be sent out by simultaneously reducing the diameter of the pipe portion.

  The road-mounted hydroelectric generator of the present invention is based on the invention described in the above solution, and the circulation pipelines constituting the basic invention are arranged side by side in the road width direction along the traveling direction of the vehicle. The plurality of road surface pipes are provided, and the plurality of road surface pipes are all piped to the converter through a check valve.

  The above solution means one means for increasing the power generation capacity of the road-mounted hydroelectric generator of the present invention. The limit of power generation capacity in hydropower generation ultimately depends on the pressure and flow rate of the working fluid. That is, no matter how much other components are devised, it is not possible to extract electrical energy exceeding the energy contained in the hydraulic fluid. In the present invention, the flow rate of the pressure fluid can be easily increased by adding in parallel an easily deformable road surface pipe or an elastically deformable elastic water passage means which is a portion to be installed on the road surface in the circulation pipeline. Can do. However, since it is not guaranteed that the tires pass on all the road surface pipes arranged side by side, it is necessary to pipe each road surface pipe to the converter via a check valve. . The check valve functions to prevent the hydraulic fluid from flowing back around the road surface pipe through which the tire does not pass.

  In addition, the piping from the plurality of water passage means to the converter is combined with a plurality of road surface pipes to the converter on the condition that a check valve is interposed in addition to the case of individually piping. Embodiments are included. Such a piping structure can be configured such that each of the road surface piping is arranged on a mat for laying on a road.

  The road-mounted hydroelectric generator of the present invention is based on the invention of the above solution means, and the circulation piping constituting the basic invention is upstream of the flow direction of the hydraulic fluid between the road surface piping and the converter. A check valve, an accumulator, and a pressure adjusting valve are sequentially included from the side, and the accumulator and the pressure adjusting valve level the pressure fluctuations of the working fluid and supply the pressure fluctuation to the converter.

  The above solution means means for leveling fluctuations in the power generation effect, which is the result of the present invention, and for leveling an excessively large burden on the mechanical elements and piping members included in the circulation pipe line.

  The accumulator in the above configuration means a general accumulator used as a power storage element in the technical fields of hydraulic pressure and pneumatic pressure. The accumulator medium in the accumulator is not limited, but normally nitrogen gas is used. Nitrogen gas is a suitable energy storage medium in the present invention, and power is generated by compressing nitrogen gas and rotating a liquid turbine.

  When a large number of road pipes are juxtaposed on the road surface, and a special vehicle such as a snowplow or large trailer passes over the road pipe, a large amount of high-pressure hydraulic fluid is temporarily directed to the converter. There is a risk that the converter itself and the piping leading to the converter will be destroyed. For such a situation, the accumulator of the present invention can absorb the pressure fluctuation peak and dip of the hydraulic fluid by the compression and expansion operations of the energy storage medium.

  At this time, the check valve arranged upstream of the accumulator prevents the pressure released from the accumulator from flowing backward, and the pressure regulating valve arranged downstream of the accumulator is used to quickly store the energy stored in the accumulator. Prevents the converter from being loaded. In addition, as for the check valve in this configuration, when applying this configuration to an invention in which a check valve is already attached on the downstream side of the road surface piping, as shown in the solution means, This can be omitted.

  The road-mounted hydroelectric generator of the present invention is based on the invention of the above solution, and the circulation piping constituting the basic invention includes a reservoir tank that stores hydraulic fluid downstream of the converter. It is characterized by being.

  The above solution increases the degree of freedom of design of the entire circulation pipeline and the degree of freedom of selection of the piping members constituting the circulation pipeline, and also provides expedient means for exchanging hydraulic fluid and automatic replenishment.

  In the road-mounted hydraulic power generation apparatus of the present invention, the hydraulic fluid may be unevenly distributed in the circulation pipe line depending on whether or not the vehicle passes over the easily deformable road surface pipe installed on the road surface. Specifically, when the vehicle passes over the road surface pipe, a large amount of the hydraulic fluid moves to a portion other than the road surface pipe.

  The movement of the hydraulic fluid is effectively used by the converter as a pressure fluctuation, but the amount of the hydraulic fluid does not decrease even if it passes through the converter. There is no problem if the hydraulic fluid that has passed through the converter immediately returns to the road piping. However, in situations where the vehicle is continuously passing on the road piping, the hydraulic fluid is transferred to the road piping. And can not return. Excessive uneven distribution of hydraulic fluid in portions other than the road surface piping functions to prevent the flow of hydraulic fluid from the road surface piping to the generator side, thereby inhibiting normal power generation.

  The above problem can be solved by installing a reservoir tank on the downstream side of the converter and receiving excess hydraulic fluid as in this configuration. It should be noted that the accumulator also functions to store hydraulic fluid, but it cannot be installed downstream of the converter because the accumulator stores not only the hydraulic fluid but also pressure at the same time. is there. An increase in the pressure value downstream of the converter hinders efficient operation of the converter.

  The reservoir tank installed on the downstream side of the converter is normally open to the atmosphere, and neither positive nor negative pressure is applied to the working fluid in the reservoir tank. This means that the required maintenance work, such as temporarily removing a part of the hydraulic fluid in the reservoir tank and replacing it with a new replenisher, or replenishing without stopping the generator, can be easily performed. It shows that you can.

  When the hydraulic fluid is easily replenished as described above, the material for the road surface piping is, for example, a tough and easily deformed structure such as a fire hose made of tubular knitted fabric that is not completely non-permeable. It is also possible to select the material to be used, and the design freedom of the entire circulation pipeline can be expanded.

  The road-mounted hydroelectric generator according to the present invention is based on the invention described in the above solution, and a reservoir tank constituting the basic invention has a one-way intake valve that takes air into the interior and an upper limit of the internal air pressure. A relief valve for maintaining the value at a predetermined constant value is provided.

  The said solution means the structure for adapting, when installing the hydraulic power unit of this invention in a downhill road.

  The kinetic energy of the vehicle traveling on the road is in the state of surplus kinetic energy in a state where a braking operation is required, for example, in the vicinity of a toll gate on a highway or downhill. When a road surface pipe that constitutes a circulation pipe line is installed on a downhill road, a drop exists between the start end and the end of the road surface pipe. The pressure water flow pushed out from the road surface piping by passing through the vehicle loses pressure by passing through the converter and is stored in the reservoir tank.

  If no pressure is applied to the reservoir tank, the hydraulic fluid in the reservoir tank cannot return to the starting end of the road surface piping located at a high place. Therefore, it is necessary to apply the minimum pressure required for returning the hydraulic fluid to the starting end of the road surface piping to the reservoir tank. For this purpose, the reservoir tank needs to have a restrictive airtight structure as much as necessary.

  A unidirectional intake valve that takes air into the interior and a relief valve that maintains the upper limit value of the internal air pressure at a predetermined constant value are means for realizing the restrictive airtight structure. The one-way intake valve is necessary in order to prevent negative pressure in the reservoir tank in the operation of sending the hydraulic fluid from the reservoir tank. When the reservoir tank has an airtight structure, the pressure in the reservoir tank rises due to the hydraulic fluid that is sequentially fed. Increasing the pressure in the reservoir tank located downstream of the generator means that the pressure that can contribute to power generation is relatively decreased, which is not preferable. This problem can be solved by providing a relief valve for maintaining the upper limit value of the internal air pressure at a predetermined constant value in the reservoir tank as in this configuration. At this time, the upper limit value of the air pressure set in the relief valve is, of course, the minimum pressure value required to return the working fluid in the reservoir tank to the starting end of the road surface piping.

  The road-mounted hydroelectric power generator of the present invention is based on the invention of the above solution, and the circulation piping constituting the basic invention bypasses both the converter or the accumulator and the converter. And a bypass pressure regulating valve interposed in the bypass piping, wherein the bypass piping bypasses the pressure exceeding the set value of the bypass pressure regulating valve.

  The above solution means a protection means for the apparatus when excessive pressure is generated by passing a pearl vehicle or the like. The contents of the protection means bypass all causal elements that generate pressure in the constituent members of the hydroelectric generator of the present invention, that is, pressure loads. Pressure is generated by the presence of a load and cannot be generated without a load.

  The load in the hydroelectric generator of the present invention is firstly a converter. When an accumulator is installed, both the accumulator and the converter are loads. The bypass pipe is a parallel pipe that bypasses all of these load elements, that is, bypasses or avoids these elements and allows the working fluid to pass therethrough. However, if these elements are simply bypassed, the power generation purpose cannot be achieved. In order to eliminate such inconvenience, a bypass pressure regulating valve is provided, and the bypass pressure regulating valve is normally operated by bypassing only a pressure exceeding a set value set as a pressure value required for power generation. Ensuring both secure power generation and device safety.

  According to the present invention, the rolling motion of the tire of the vehicle traveling on the road is applied to the easily deformable water passage means, and the hydraulic fluid in the road surface pipe is sent in the traveling direction of the vehicle to be converted into pressure fluid. In order to realize the power generation action with the hydraulic fluid, the selection range of the installation location is wide, and this can be efficiently used for power generation by using the disposable energy of the vehicle.

  In the present invention, the contact with the vehicle is made through easily deformable water passage means that is filled with hydraulic fluid and can be easily deformed. Accordingly, it is possible to drive the internal hydraulic fluid in the traveling direction of the vehicle via the vehicle tire without giving an unpleasant impact to the vehicle traveling on the road. In addition, the problem that the braking action is exerted on the vehicle by receiving kinetic energy from the vehicle can be solved by selecting a place where the speed of the vehicle needs to be reduced as the installation location.

  In addition, the requirement of the circulation pipeline for repeatedly using the hydraulic fluid is a simple requirement that the start and end of the circulation pipeline are connected, so the length of the road piping is a limiting factor. Does not exist. Therefore, the length of the road surface piping, which is the part on which the tires of the vehicle act, is not limited, and is necessary for realizing a practically effective power generation operation that can be linked to the commercial power system, for example. A sufficient length can be easily secured. However, it goes without saying that the power generation amount depends on the traffic volume at the installation location.

  Here, it is argued that there is no negative element in the configuration of the invention itself regarding the problem of realizing a practically effective power generation operation. Note that additional problems such as leveling of energy received intermittently from the vehicle are individually solved by additional configurations such as addition of an accumulator. According to the present invention, a road-installable and beneficial road-installed hydroelectric generator method and a hydroelectric generator that can perform a practically effective power generation operation are provided.

It is a whole line conceptual diagram showing an embodiment of a hydroelectric generator of the present invention. It is a perspective view which shows the example of installation of the hydroelectric generator in the said embodiment. It is operation | movement explanatory drawing of the hydraulic power unit shown in the said embodiment. It is operation | movement explanatory drawing of the hydraulic power unit shown in the said embodiment. It is operation | movement explanatory drawing of the hydraulic power unit shown in the said embodiment. It is a perspective view of the principal part which shows other embodiment of the hydroelectric generator of this invention. It is a perspective view which shows the example of installation of the hydroelectric generator in the said embodiment. It is a top view which shows the example of the elastic water passage means of the said embodiment. It is a top view which shows the example of the elastic water passage means of the said embodiment. It is a top view which shows the example of the elastic water passage means of the said embodiment. It is a top view which shows the example of the elastic water passage means of the said embodiment. It is a whole line conceptual diagram showing other embodiments of the hydroelectric generator of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  The road-mounted hydroelectric generator of the present invention is configured so as to be able to perform a power generation operation by effectively using surplus kinetic energy of countless vehicles M traveling on the road ST (see FIGS. 2 and 4). . In the present embodiment, the case of an expressway will be described. However, when there are a plurality of lanes, they may be arranged in all lanes, and in this case, they may be connected across a plurality of lanes.

  The hydroelectric power generation apparatus includes an accumulator 20, a converter 30, a generator 40, and a reservoir tank 50 in a circulation piping 100 for circulating and repeatedly using the hydraulic fluid F (FIG. 1). . Further, the upstream side of the accumulator 20 and the reservoir tank 50 are bypassed by a bypass pipe P4 having a bypass pressure adjusting valve V4. Note that “upstream side” with respect to the circulation pipe line 100 refers to the direction in which the hydraulic fluid F flows from the viewpoint of a specific member, and “downstream side” refers to the direction in which the hydraulic fluid F flows away.

Water is used for the hydraulic fluid F. Oil can be used, but in the unlikely event of an oil leakage accident that should be assumed on the responsibility for installation on the public road ST, the use of liquid material that induces a slip accident of the vehicle M should be withheld. Is desirable. An appropriate amount of antifreeze or rust preventive can be added to water according to climatic conditions.

  The circulation piping 100 includes a plurality of easily deformable (elastically deformable) road surface pipes 11 that are water passage means (FIG. 1). The inclusion of the easily deformable road surface piping 11 is a necessary requirement, but the inclusion of a large number of them is an optional requirement. A large number of road surface pipes 11 are unitized, and one unit of road surface pipes 11 is a right side corresponding to the right tire T of the vehicle M passing through a specific lane with reference to the traveling direction D1 of the vehicle M. The pipe group 10R, the left pipe group 10L corresponding to the left tire T, the start end common pipe P1 arranged on the start end side of these road surface pipes 11 ..., and the end side of these road surface pipes 11 ... Terminal common piping P2.

  The right pipe group 10R and the left pipe group 10L of the road surface pipes 11 are each composed of five road surface pipes 11 (FIG. 1). The five road surface pipes 11 are arranged so as to be distributed at equal intervals in the width direction of the road ST along the traveling direction D1 of the vehicle M. Such a distributed arrangement is intended to increase the probability that the vehicle M traveling on the road ST will be stepped on and to increase the amount of the hydraulic fluid F that is driven when the vehicle M is stepped on. It is.

  Such an intention is that the distance B between the road surface pipe 11 at the center position of the right pipe group 10R and the road surface pipe 11 at the center position of the left side pipe group 10L corresponds to the tread width of the ordinary private vehicle, and is located on the outermost side. The distance between the road surface pipes 11 and 11 is made to correspond to the tread width of the large automobile, and the distance between the innermost road surface pipes 11 and 11 is made to correspond to the tread width of the small automobile.

  The start common pipe P1 and the end common pipe P2 bear the role of combining the start ends and the end of the road surface pipes 11 belonging to the right pipe group 10R and the left pipe group 10L. Contrary to the road surface pipe 11..., The material of the start common pipe P1 and the end common pipe P2 can maintain a shape against an external force, for example, a steel pipe, a zinc alloy pipe, and a sufficient thickness. A vinyl chloride tube is used.

  The start ends of a large number of sufficiently flexible road surface pipes 11 are connected to the start end common pipe P1 having sufficient rigidity by pipe joints 12 including check valves V1. Moreover, the termination | terminus of many road surface pipes 11 ... and termination common piping P2 are connected via many pipe joints 13 ... which contained check valve V2 (FIG. 1). As a result, the hydraulic fluid F is supplied to all the road surface pipes 11 from the single common start pipe P1, and the hydraulic fluid F from all the road surface pipes 11 is discharged from the single common end pipe P2. The That is, the check valve V1 on the start end side and the check valve V2 on the end end side are in the same direction, and both permit the flow of the hydraulic fluid F only in the traveling direction D1 of the vehicle M.

  In addition, each road surface piping 11 which is a structural unit of the right piping group 10R and the left piping group 10L is an aspect of a fire hose formed by knitting tough fibers in a cylindrical shape. However, this mode is a recommended mode and is not a limited mode of the road surface piping 11 that can be used in the present invention.

  The road surface pipe 11 has no limit symptom such as buckling and cracking, can withstand extremely high pressure, and can be crushed almost flatly without exhibiting excessive deformation resistance (see FIG. 5). However, when the high pressure state continues, the internal working fluid F may ooze out. The amount of exudation is usually negligible. The road surface pipe 11 may be coated with rubber resin or the like.

  The end common pipe P2 and the start end common pipe P1 constituting the circulation pipe line 100 are connected by a loop pipe P3 made of an arbitrary pipe material considering the maximum pressure of the hydraulic fluid F driven by the vehicle M, and circulate the hydraulic fluid F. Is secured (FIG. 1).

  The loop pipe P3 is provided with an accumulator 20, a pressure regulating valve V3, a converter 30 and a reservoir tank 50 sequentially from the upstream side. The generator 40 is connected to the converter 30. Although it is the converter 30 that directly drives the generator 40, other equipment functions to stabilize the operation of the converter 30.

  The road-mounted hydroelectric generator of the present invention desirably exhibits a power generation function without affecting the vehicle M traveling on the road ST by being installed in front of the toll gate G on the downhill road or toll road. (FIG. 2). In front of the downhill or toll gate G, the inertia of the movement based on the weight of the vehicle M usually shifts from the energy consumption state where the engine drives the vehicle M to the surplus energy state where the engine is driven.

  FIG. 2 shows an installation example in which the hydroelectric power generation device of the present invention is installed at a position immediately before the toll gate G on the toll road of two lanes on one side. The road surface pipes 11 in the constituent members of the hydroelectric generator are installed on the road surface S1 of the road ST, and the start common pipe P1 and the end common pipe P2 need to be buried under the road surface S1. It is a member. The other members are arbitrary-position installation members whose installation positions are not limited.

  In the figure, one hydroelectric generator is installed in each lane of two lanes on one side. At this time, the right pipe group 10R and the left pipe group 10L of the road surface pipes 11... Are installed along the traveling direction D1 of the vehicle M, and the start common pipe P1 and the end common pipe P2 cross the road ST. Buried. In addition, the accumulator 20, the generator 40, and the reservoir tank 50 included in the hydroelectric generator of one lane are installed on the shoulder S2 of the road ST, and those members included in the hydroelectric generator of the other lane are: It is installed in the median strip S3.

  In the installation of the hydroelectric generator of the present invention, it is only necessary to limit the passage of the vehicle M on the road ST during the period of burying the start common pipe P1 and the end common pipe P2. Today, this work is completed in a short time by utilizing mechanical force such as diamond cutter for cutting concrete. Therefore, on the contrary, the hydroelectric generator can be installed with such simple construction contents, although it is small-scale, rather than correcting the problem of traffic obstruction.

  In the hydroelectric generator of the present embodiment, approximately 100% of the countless vehicles M that normally travel on the road ST pass over the road surface pipes 11... Installed on the road surface S1. This is because a large number of road pipes 11 are divided into a right pipe group 10R corresponding to the right tire T of the vehicle M and a left pipe group 10L corresponding to the left tire T based on the tread width of the vehicle M. It is the arranged result.

  The tire T of the vehicle M that normally travels on the road ST rolls on one of the road pipes 11 from the start side to the end side in accordance with the traveling direction D1 of the vehicle M (FIG. 3). At this time, the road surface piping 11 is crushed so as to lose its cross-sectional area from the start end side toward the end end side (FIGS. 4 and 5). In such a buffer relationship between the road surface pipes 11 and the tires T of the vehicle M, the easily deformable road surface pipes 11 filled with the hydraulic fluid F do not impact the vehicle M.

  A check valve V1 and a check valve V2 for controlling the hydraulic fluid F in one direction exist at the start end and the end end of the road surface pipe 11. As a result, the hydraulic fluid F filled in the road surface pipe 11 is driven from the start end side toward the end side, is converted into pressure fluid, and flows into the end common pipe P2 (FIG. 4). The flow of the hydraulic fluid F is the same even when a plurality of road surface pipes 11 are stepped on simultaneously by the same or a plurality of tires T.

  The diameter A of the road surface pipe 11 is set to a diameter A at which the above operation is reliably realized (FIG. 5). In order for the hydraulic fluid F to be reliably driven by the tire T of the vehicle M, it is ideal that the road surface pipe 11 in a completely crushed state is within the tread width TW of the tire T. In accordance with this ideal, the diameter A of the road surface pipe 11 is determined as a result of a simple arithmetic calculation on the basis of the tread surface width TW of the tire T of the ordinary private car having the largest traffic volume.

  Here, first, a case where the bypass pipe P4 is not present in the circulation pipe line 100 will be described, and then a case where the bypass pipe P4 is present will be described (FIG. 1).

  The hydraulic fluid F that has flowed into the end common pipe P2 flows into the accumulator 20 via the loop pipe P3. Although the outline of the accumulator 20 has been described above, a specific structure is that a flexible balloon for introducing the hydraulic fluid F is installed inside a metal tank container that is curved to withstand high pressure, The balloon is filled with nitrogen gas. When the working fluid F enters the inside of the balloon, the balloon expands. The inflated balloon compresses nitrogen gas. This shows an operation in which the pressure of the hydraulic fluid F is stored by nitrogen gas.

  On the other hand, when the pressure of the hydraulic fluid F decreases, the balance between the pressure of the nitrogen gas inside the tank container and the pressure of the hydraulic fluid F is reversed. As a result, the balloon is compressed by the pressure of the nitrogen gas, and the working fluid F inside the balloon is pushed back to the loop pipe P3. Since the hydraulic fluid F pushed back to the loop pipe P3 is blocked by the check valve V2, it does not flow backward. The accumulator 20 functions to level the pressure of the hydraulic fluid F by such pressure absorption and discharge operations. In addition, the accumulator 20 can increase the pressure accumulation capacity by installing a plurality of units.

  The hydraulic fluid F that has passed through the accumulator 20 acts on the converter 30 via the pressure regulating valve V3. The pressure regulating valve V <b> 3 regulates the maximum pressure value of the hydraulic fluid F that can pass in the direction of the converter 30. As a result, the hydraulic fluid F discharged from the accumulator 20 enters the converter 30 at once, and an overload in which the converter 30 is overloaded is prevented. Further, it can be said that the pressure regulating valve V3 regulates the minimum pressure value of the hydraulic fluid F to be accumulated with respect to the accumulator 20.

  The converter 30 converts the pressure fluid energy of the hydraulic fluid F into a mechanical rotational force. That is, the converter 30 is a mechanical element called a turbine or a water wheel. The converter 30 suitable for the hydroelectric generator of the present invention is for high pressure and small amount of water. The turbines used for hydroelectric power generation are generally classified by heads on the assumption that the amount of water is sufficient. The belt type for high head, the Francis type for medium head, and the Kaplan type for low head. In the hydroelectric power generator of the present invention, it cannot be said that the amount of water is abundant, so this point needs to be considered.

  As the converter 30 that can be recommended at the present time with respect to the above problem, there can be mentioned a Berton type or Francis type water wheel that is miniaturized so as to respond to a small amount of water. It is also effective to change the way of thinking and use vane pumps and gear pumps in reverse. Although the vane pump and the gear pump are originally intended to drive a small amount of fluid strongly, they are also good at being driven strongly by a small amount of fluid. However, it may be necessary to change the direction of the valve. In any case, this problem is not an essential problem, but merely a discussion regarding the conversion efficiency of the converter 30.

A generator 40 is connected to the converter 30. This is also with the generator 40, similarly to the converter 30, as it of course is that the power generating operation is achieved, the problem of power generation efficiency beset. However, in the case of the generator 40, it is easy to mechanically convert the relationship between the torque of the rotational output of the converter 30 and the number of rotations to match the characteristics of the generator 40.

  The hydraulic fluid F that has passed through the converter 30 loses energy as a pressure fluid and simply reaches the start common pipe P1 via the loop pipe P3 due to the negative reason that it is pushed by the subsequent hydraulic fluid F. It returns to the start end side of the plurality of road surface pipes 11 connected from P1.

  However, when the reservoir tank 50 is installed on the downstream side of the converter 30, the hydraulic fluid F that has passed through the converter 30 returns to the start end common pipe P <b> 1 via the reservoir tank 50.

  The reservoir tank 50 installed on the terminal side of the loop pipe P3 can include an intake valve V5 and a relief valve V6. The purpose of the intake valve V5 is to breathe when the hydraulic fluid F in the reservoir tank 50 flows out. This is because the internal working fluid F cannot flow out unless outside air is supplied into the reservoir tank 50. On the other hand, the purpose of the relief valve V6 is to maintain the internal pressure in the reservoir tank 50 at a constant value equal to or higher than the atmospheric pressure and promote the discharge of the internal working fluid F.

  The relief valve V6 contributes to returning the hydraulic fluid F in the reservoir tank 50 to the road surface pipes 11 when the hydroelectric generator is installed on a downward slope.

  In the road surface piping 11... Installed on the downhill road surface S1 in accordance with the traveling direction D1 of the vehicle M, the horizontal position on the start side becomes higher than the horizontal position on the terminal side. In such an environment, if the reservoir tank 50 is open to the atmosphere, the hydraulic fluid F cannot return to the starting end side of the road surface pipes 11... Even if the hydraulic fluid F overflows from the reservoir tank 50. . This problem can be dealt with by maintaining the internal air pressure of the reservoir tank 50 at a constant value exceeding the atmospheric pressure by the relief valve V6. This is because the air pressure in the reservoir tank 50 exceeding the atmospheric pressure acts to force the working fluid F inside.

  The bypass piping P4 in the circulation piping 100 is a final safety valve that protects the accumulator 20 and the converter 30 from overload. The bypass pipe P <b> 4 is piped so as to directly connect the upstream side of the accumulator 20 and the reservoir tank 50 by skipping the converter 30. A bypass pressure adjusting valve V4 is included in the bypass pipe P4.

  When the bypass pressure regulating valve V4 is opened, the hydraulic fluid F passing through the bypass pipe P4 simply circulates in the circulation pipe line 100 in an unloaded state. Therefore, in the unlikely event, if the bypass pressure regulating valve V4 is opened, the pressure in the circulation pipeline 100 can be reduced at a stroke regardless of the passing state of the vehicle M.

  Conversely, it can be said that the bypass pressure regulating valve V4 maintains the safety of the entire apparatus while preventing the hydroelectric generator from entering the incapable state as described above. That is, the bypass pressure regulating valve V4 conditions the pressure state of the hydraulic fluid F that can pass through the bypass pipe P4. Only the pressure portion exceeding the set value of the bypass pressure regulating valve can pass through the bypass pipe P4, whereby the accumulator 20 and the converter 30 are operated under a pressure condition below the set value. It is guaranteed.

  Regarding the connection of the bypass pipe P4, it is also effective to directly connect the start common pipe P1 and the end common pipe P2 instead of the arrangement shown in FIG. The handling and functions of the bypass pipe P4 and the bypass pressure regulating valve V4 in this case are substantially the same as in the case of the above arrangement. As a result, the reservoir tank 50 is merely added to the bypass target.

The road surface piping 11 installed on the road surface S1 of the road ST is a unit sandwiched from above and below by either or both of the laying mat 15 and the covering mat 16 for covering. (FIGS. 6A and 6B and FIG. 7). Concave lines 15V and 16V for positioning the road surface pipes 11 are formed at corresponding positions on the inner side surfaces of the laying mats 15 and 16 having a pair of upper and lower configurations. The road surface pipes 11 are formed into the concave lines 15V and 16V, respectively. It is unitized while being sandwiched. The laying mats 15 and 16 are elastically deformable elastic water passage means in which road surface pipes 11 are arranged. When the vehicle steps on the laying mats 15 and 16, the diameter of the elastic water passage portion 11 is reduced. If it passes, it will return to the original state.
The laying mats 15 and 16 prevent the road surface pipes 11 ... from freezing, extend the useful life, expand the degree of freedom of material selection, prevent the road surface pipes 11 ... from being displaced, distribute the stress when stepped on the tire T, The purpose is to increase the frictional force between the tire T and the like. Therefore, the material of the laying mats 15 and 16 is selected from a single material or a composite material capable of exhibiting such functions while being fully balanced. The material selection range of the laying mats 15 and 16 can use a very wide range of materials, but a rubber mat is optimal. An example is a foamed rubber material. In addition, since the tire T of a motor vehicle is rubbery, it is desirable that it is different from the rubber material of a motor vehicle. This is because it is generally known that a large friction force cannot be obtained between homogeneous members having high affinity unless special measures are taken.

  By laying the laying mats 15 and 16 on the road ST, when the automobile M passes, the tires step on the laying mat 16 to send out the working fluid in the traveling direction of the vehicle M, and collect the collected hydraulic fluid. 40 is driven. A state before the tire T steps on the laying mat 16 is shown in FIG. 6A, and a state where the tire T is stepped on is shown in FIG. 6B. As with the road surface pipe 11, a check valve is arranged on the elastic water passage means 16.

As an example of the laying mat 16, laying that is an elastic water passage means having a collecting part (collecting pipe) 16t for collecting hydraulic oil from a large number of tubular road surface pipes 11 ... on one side (the traveling direction of the vehicle). The mat 16A can be used (FIG. 8). Although not shown in the drawing, a large number of tube-like road surface pipes 11 are arranged obliquely or tapered road surface pipes 11a (see the center of FIG. 8), or a small passage from a large diameter portion. It can also be made to flow through a water channel. The elastic water passage means 16A is piped to a laying mat laid on the road, and when the vehicle steps on the laying mat, the diameter of the water passage means is reduced. The size of the laying mat 16 is, for example, about 5 m × 5 m, and a plurality of the mats are connected and arranged.
Here, the rubber hardness in the case of the rubber laying mat 16 (16A to 16C) is changed (reduced) to the shape of the road surface pipes 11 without contracting the rubber when the traveling weight of the vehicle is applied. However, in the case of a large vehicle such as a truck or bus M2, the rubber contracts when the heavy vehicle travels, and the shape of the road surface pipes 11 ... changes (reduced diameter). It is possible and the piping part of the mat for mat | laying can be pressed simultaneously (FIG. 12). In the example of FIG. 12, the laying mat 16D constructed by inserting 5 to 10 rubber tubes having a diameter of about 50 mm into the laying mat having a length of about 5 m, a width of about 4 m and a thickness of about 10 cm. The laying mat is laid continuously. However, about 20 laying mats may be continuously arranged to drive one generator 40 at 100 m.

  As another example of the laying mats 15 and 16, a plurality of tube-like road surface pipes 11 are provided between the upper and lower mats Z1 and Z2, and the weight of the vehicle is attached to the plurality of road surface pipes 11. If it does, it can be comprised as the elastic water passage means 16B provided with two or more convex-shaped members Za which crush in the advancing direction of the vehicle M in order (FIG. 7, FIG. 8, FIG. 9). The material of the plurality of convex members Za is made of rubber or metal, and is connected at a predetermined interval by a connecting member such as a string, and the upper mat Z1 is configured to be wound in the traveling direction of the automobile. Yes. A check valve V <b> 1 is attached to the front and rear ends of the plurality of road surface pipes 11. Therefore, when the tire T of the automobile steps on the elastic water passage means 16B, the convex members Za are sequentially pushed down in the passing direction to simultaneously press the plurality of pipes 11 and effectively prevent the backflow of the hydraulic oil F. The mats 15, 16, 16A, 16B, and 16C may be elastic water passage means 16C disposed on the road (see FIG. 14). Further, the upper and lower mats Z1 and Z2 may be configured such that the upper mat Z1 covers the lower mat Z2 and the upper and lower mats Z1 and Z2 do not move relative to each other.

  Here, in the above-described embodiment, check valves V1 and V2 are installed at the start end and the end of the road surface pipes 11 respectively, but the circulation pipe line 100 in the hydroelectric generator of the present invention is There is no need to reverse the hydraulic fluid F. This means that any part of the circulation pipeline 100 is suitable as a check valve installation place, and in this sense, the check valve can be added freely. However, it is inappropriate to exhibit a large communication resistance in the direction in which the hydraulic fluid F can pass.

  As described above, in the above embodiment, the example applied to a highway has been described. However, the present invention is not limited to a highway, and any road, road, or ground on which a vehicle travels can be used as a national road, a prefectural road, a city road, or a factory. It can be widely arranged such as where the vehicle passes on the inner ground. As particularly preferable installation locations, it is desirable to install the service areas at entrances and exits of service areas, downhills and corners of interways, and long downhills.

M vehicle,
T tires,
F hydraulic fluid,
D1 direction of travel,
ST road,
S1 road surface,
P4 bypass piping,
V2 check valve,
V3 pressure regulating valve,
V4 bypass pressure regulating valve,
V5 intake valve,
V6 relief valve,
Za convex member,
100 circulation pipeline,
11 Road surface piping ( elastic water passage means),
16, 16A laying mat, P1, P2 collecting pipe,
15, 16 mat for laying (water channel means),
16A, 16B, 16C, 16D Water passage means (laying mat),
20 Accumulator,
30 converter,
40 generator,
50 Reservoir tank

Claims (8)

An elastic water passage means for sending hydraulic fluid to the road or the ground through which the vehicle passes is laid, and the hydraulic fluid of the elastic water passage means is converted into pressure fluid by causing the rolling motion of the wheels of the traveling vehicle to act. The generator is driven by the activated hydraulic fluid,
The elastic water passage means is formed with a plurality of recesses for arranging pipes on a laying mat laid on a road or the ground, and a plurality of pipes are respectively arranged in the recesses, and the vehicle A road-mounted hydroelectric power generator that contracts a plurality of pipes by stepping on a mat for laying.   The said laying mat is composed of rubber upper and lower mats, and the recesses and recesses are formed between the upper and lower mats so as to surround the pipe. Road-mounted hydroelectric generator. An elastic water passage means for sending hydraulic fluid to the road or the ground through which the vehicle passes is laid, and the hydraulic fluid of the elastic water passage means is converted into pressure fluid by causing the rolling motion of the wheels of the traveling vehicle to act. The generator is driven by the activated hydraulic fluid,
Said elastic water passage means for laying mats laid on the road or the ground is composed of the upper and lower mats, the upper and lower plurality of pipes between the mat is disposed Rutotomoni, the upper and lower mats, rubber The upper mat made of rubber covers the lower mat so that the upper and lower mats do not move relative to each other, and the vehicle can contract multiple piping by stepping on the mat for laying. A road-installed hydroelectric power generation device. Said upper and lower mat, mat on top of the mat under the rubber of rubber is in the configuration of the lid, according to claim 2 in which the upper and lower mat characterized in that it is a structure which does not move relative to each other Road-mounted hydroelectric generator.   5. The road-mounted hydroelectric power generation according to claim 1, wherein a convex member that sequentially presses the plurality of pipes is provided on a laying mat of the elastic water passage means. apparatus. A circulation pipe line that includes the elastic water passage means and forms a predetermined circulation path is provided, and the pressure fluid energy of the pressurized hydraulic fluid that is interposed in the circulation pipe path is converted into a rotational force. A converter and a generator driven by the converter;
6. The road-mounted hydroelectric generator according to claim 1 , wherein the circulation pipeline includes a reservoir tank that stores hydraulic fluid downstream of the converter. .   The circulation pipeline includes a check valve, an accumulator, and a pressure regulating valve sequentially from the upstream side in the flow direction of the hydraulic fluid between the elastic water passage and the converter, and the accumulator and the pressure 7. The road-installed hydroelectric generator according to claim 6, wherein the regulating valve leveles the pressure fluctuation of the hydraulic fluid and supplies the leveled fluctuation to the converter. The circulation pipe line is configured to include the converter, or a bypass pipe that bypasses both the accumulator and the converter, and a bypass pressure adjusting valve that is interposed in the bypass pipe. The road-mounted hydroelectric generator according to claim 6 or 7, wherein a pressure exceeding a set value of the bypass pressure regulating valve is bypassed.

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