US20160069336A1 - Compressor and power generating system and method of using the same - Google Patents
Compressor and power generating system and method of using the same Download PDFInfo
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- US20160069336A1 US20160069336A1 US14/580,776 US201414580776A US2016069336A1 US 20160069336 A1 US20160069336 A1 US 20160069336A1 US 201414580776 A US201414580776 A US 201414580776A US 2016069336 A1 US2016069336 A1 US 2016069336A1
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- Prior art keywords
- compressor
- permanent magnet
- refrigerant
- pistons
- cylinder block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B27/0821—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
- F04B27/0834—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication cylinder barrel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B27/0821—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
- F04B27/086—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication swash plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
- F04B27/0878—Pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
- F04B27/1045—Cylinders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention relates to a compressor having a cylinder block having a center bore piercedly formed at the center thereof and cylinder bores piercedly formed around the center bore, a front housing and a rear housing mounted on both ends of the cylinder block, a driving shaft rotatably passing through the front housing and the center bore, and pistons linearly reciprocating in the cylinder bores with the power received from the driving shaft to compress a refrigerant. The compressor includes a permanent magnet disposed on either of the pistons or the cylinder block and coil parts provided to the other part, wherein power generation is conducted by means of the electromagnetic induction produced by the motions of the pistons.
Description
- This application claims priority to Korean Patent Application No. 2014-0118647 filed on Sep. 5, 2014, the disclosure of which is incorporated herein by reference in its entirety.
- The present invention relates to a compressor and a power generating system and method of using the same, and more particularly, to a compressor and a power generating system and method of using the same wherein as a driving shaft rotates by receiving a driving force from an engine, a refrigerant is compressed in cylinder bores by means of pistons to conduct power generation.
- A compressor used in an air conditioning system for a vehicle absorbs a refrigerant whose evaporation is completed after exiting an evaporator, compresses the refrigerant into a high temperature, high pressure liquid refrigerant, and transports the refrigerant to a condensor, and together with the condensor, an expansion valve and the evaporator, the compressor constitutes a cooling system.
- In the refrigerant compressing manner, the compressor is divided into a reciprocating type compressor and a rotary type compressor. The reciprocating type compressor includes a crank type compressor transmitting a driving force from a driving source through a crank shaft, a swash plate type compressor transmitting the driving force through a rotary shaft to which swash plates are fitted, and a wobble plate type compressor transmitting the driving force through a wobble plate. The rotary type compressor includes a vane rotary type compressor using a rotating rotary shaft and a vane and a scroll type compressor using a rotating scroll and a fixed scroll.
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FIG. 1 is a sectional view showing the internal configuration of a conventional compressor. As shown inFIG. 1 , the compressor has acenter bore 11 formed to pass through the center of acylinder block 10. A plurality ofcylinder bores 13 is formed radially around the center bore 11 to pass through thecylinder block 10. Pistons 15 are movably disposed in the interiors of thecylinder bores 13. Thepistons 15 have a cylindrical shape, and thecylinder bores 13 have a hollow cylindrical shape corresponding to thepistons 15. Aconnection part 17 is formed on one end portion of eachpiston 15, that is, on the portion of eachpiston 15 protruding outward from each cylinder bore 13. Eachpiston 15 compresses the refrigerant at the inside of thecorresponding cylinder bore 13. - A
front housing 20 is disposed on one end of thecylinder block 10. Thefront housing 20 is coupled to thecylinder block 10 to form acrank chamber 21 therein. Thecrank chamber 21 is airtightly sealed from the outside. - The
front housing 20 has apulley shaft 22′ protruding from the opposite side to the side coupled to thecylinder block 10 to rotatably fit apulley 22 rotating by means of the driving force of an engine thereto. A hub (not shown) is disposed on the inner peripheral surface of thepulley 22 in such a manner as to be engaged with one end of adriving shaft 40. - A
shaft hole 23 is formed from the center of thepulley shaft 22′ to thecrank chamber 21 in such a manner as to pass through thefront housing 20 forward and backward. - A
rear housing 30 is disposed on the other end of thecylinder block 10, that is, on the opposite side to the side to which thefront housing 20 is disposed. Therear housing 30 has a suction chamber (not shown) selectively communicating with thecylinder bores 13. The suction chamber is formed at the center of the surface of therear housing 30 facing thecylinder block 10. The suction chamber serves to transmit the refrigerant to be compressed to the interiors of thecylinder bores 13. - The
rear housing 30 has adischarge chamber 33 selectively communicating with thecylinder bores 13. Thedischarge chamber 33 is formed at the position close to the outer circumference of therear housing 30 facing thecylinder block 10. Thedischarge chamber 33 serves as the space in which the refrigerant compressed in thecylinder bores 13 temporarily stays. Therear housing 30 has a control valve (not shown) mounted at one side thereof. The control valve is adapted to adjust angles ofswash plates 48 as will be discussed below. - The
cylinder block 10, thefront housing 20, and therear housing 30 are fastened to each other by means ofbolts 37. Thebolts 37 pass through the outer circumferences of thecylinder block 10, thefront housing 20 and therear housing 30 and fasten them to each other. - The
driving shaft 40 is disposed to pass through thecenter bore 11 of thecylinder block 10 and theshaft hole 23 of thefront housing 20. Thedriving shaft 40 rotates by means of the driving force received from the engine. Thedriving shaft 40 is rotatably supported against thecylinder block 10 and thefront housing 20 by means of abush 42. - A
rotor 44, through which the drivingshaft 40 passes, is disposed inside thecrank chamber 21 in such a manner as to rotate unitarily with thedriving shaft 40. Therotor 44 has a generally circular plate and is fixedly fitted to thedriving shaft 40. - The
driving shaft 40 has theswash plates 48 hinge-coupled to therotor 44 and rotating together with therotor 44. Theswash plates 48 are varied in angles fixed to thedriving shaft 40 in accordance with the discharging capacities of the compressor. That is, theswash plates 48 have angles perpendicular to the longitudinal direction of thedriving shaft 40 or given tilted angles thereto. At this time, theouter circumferences 50 of theswash plates 48 are connected to thepistons 15 by means ofshoes 50. In more detail, theouter circumferences 50 of theswash plates 48 are connected to theconnection parts 17 of thepistons 15 by means of theshoes 50, thus allowing thepistons 15 to be linearly reciprocated in the interiors of thecylinder bores 13 through the rotation of theswash plates 48. - On the other hand, a
washer 62 is disposed on one end periphery of thedriving shaft 40 located at thecenter bore 11 of thecylinder block 10. A shaft elastic member 64 is supported on one end thereof against thewasher 62 mounted on thedriving shaft 40. The shaft elastic member 64 is a cylindrical coil spring which generates an elastic force pushing the drivingshaft 40 toward thefront housing 20, thus preventing the drivingshaft 40 from pushing toward therear housing 30 and at the same time supporting the driving shaft thereagainst. - The hub is disposed on the other end periphery of the
driving shaft 40. The hub transmits the rotary force of thepulley 22 to the drivingshaft 40. - A
valve assembly 70 is disposed between thecylinder block 10 and therear housing 30 to control the flow of refrigerant between the suction chamber and thedischarge chamber 33 of therear housing 30 and thecylinder bores 13 of thecylinder block 10. That is, thevalve assembly 70 controls the flows of refrigerant from the suction chamber to thecylinder bores 13 and from thecylinder bores 13 to thedischarge chamber 33. - Now, an explanation on the operation of the compressor having the above-mentioned configuration will be given. If the driving force of the engine is transmitted to the
pulley 22 via a belt (not shown), thepulley 22 rotates. If thepulley 22 rotates, the rotary force of thepulley 22 is transmitted to the hub disposed on the inner peripheral surface of thepulley 22, so that the drivingshaft 40 coupled to the hub rotates, thus allowing the compressor to be driven. - As the
driving shaft 40 rotates, accordingly, theswash plates 48 rotate together with thedriving shaft 40. The rotation of theswash plates 48 allows thepistons 15 to be linearly reciprocated inside thecylinder bores 13. - As a result, the refrigerant in the suction chamber is sucked sequentially into the
cylinder bores 13. If the refrigerant is transmitted to thecylinder bores 13, thepistons 15 of thecylinder bores 13 move toward thevalve assembly 70, thus conducting the compression of the refrigerant. - If the refrigerant is compressed at the inside of the
cylinder bores 13, the internal pressures of thecylinder bores 13 become relatively high to permit the refrigerant to be transmitted to thedischarge chamber 33. In this state, if the inclination angles of theswash plates 48 are varied by means of the control valve, the quantity of refrigerant compressed at the inside of thecylinder bores 13 is varied, thus changing the quantity of refrigerant discharged. - To achieve low emission and high fuel efficiency, recently, hybrid electric vehicles have been popularized. Conventionally, vehicles having engines using fossil fuels like gasoline, diesel and the like are generally used, but with the decrement of burial quantity of the fossil fuels and the seriousness of environmental pollution, many studies on the energy sources for vehicles with which the fossil fuels are replaced have been kept. The energy sources, which have been recently studied best, are fuel cells, and the hybrid electric vehicles using both of the fossil fuels and the fuel cells (that is, electricity), are most popularly used. A driving motor using electricity as a driving source is mounted on the fuel cell vehicle or the hybrid electric vehicle, which is used to replace an engine using the fossil fuel or to assist the engine. However, many studies and development have been continuously made to completely transform an internal combustion engine into electronic parts (including an electric motor) in a drive system of a vehicle.
- Such fuel cell vehicle or hybrid electric vehicle may have greater required power than the existing vehicle using the fossil fuels. According to conventional practice, accordingly, an alternator is additionally mounted on the vehicle, but in this case, separate parts should be additionally mounted, thus undesirably increasing the manufacturing cost and the weight thereof and causing the failure in the minimization thereof.
- Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a compressor and a power generating system and method using the same wherein as a driving shaft rotates by receiving a driving force from an engine, a refrigerant is compressed in cylinder bores by means of pistons to conduct power generation, so that the power required for a vehicle can be produced.
- It is another object of the present invention to provide a compressor and a power generating system and method of using the same wherein power is stably supplied through the compressor necessarily disposed for cooling, without any separate components, so that the compressor and the power generating system and method can be simply applied to vehicles having a relatively large quantity of power consumed such as fuel cell vehicles, hybrid electric vehicles, and the like.
- To accomplish the above-mentioned objects, according to a first aspect of the present invention, there is provided a compressor having a cylinder block having a center bore piercedly formed at the center thereof and cylinder bores piercedly formed around the center bore, a front housing and a rear housing mounted on both ends of the cylinder block, a driving shaft rotatably passing through the front housing and the center bore, and pistons linearly reciprocating in the cylinder bores with the power received from the driving shaft to compress a refrigerant, the compressor including: a permanent magnet disposed on either of the pistons or the cylinder block; and coil parts provided to the other part, whereby power generation is conducted by means of the electromagnetic induction produced by the motions of the pistons.
- According to the present invention, desirably, each piston has a body and the permanent magnet mounted on the inner peripheral surface of the body, and the cylinder block has the coil parts adapted to surround the cylinder bores.
- According to the present invention, desirably, the cylinder block has mounting grooves formed to surround the cylinder bores, the mounting grooves being adapted to coupledly insert the coil parts thereinto.
- According to the present invention, desirably, each coil part includes a coil and a first fixing member adapted to fix the coil thereto, the first fixing member being formed of silicon steel and the coil having a concentric structure in which two or more rows defined by a partition plate are formed.
- According to the present invention, desirably, the permanent magnet is fixed to a second fixing member of each piston.
- According to the present invention, desirably, the permanent magnet includes first permanent magnet having N and S poles located in the motion direction of each piston and second permanent magnet disposed at one side of each first permanent magnet in such a manner as to have the same polarities as the facing polarities in the height direction thereof, the first permanent magnet and the second permanent magnet being alternately arranged in the motion direction of each piston.
- According to the present invention, desirably, the permanent magnet includes a third permanent magnet having an S pole located on the inner peripheral surface thereof contacted with the second fixing member and an N pole located on the outer peripheral surface thereof, a fourth permanent magnet located at one side of the third permanent magnet in the motion direction of each piston and having an N pole located at the side adjacent to the third permanent magnet, and a fifth permanent magnet located at the other side of the third permanent magnet in the motion direction of each piston and having an N pole located at the side adjacent to the third permanent magnet.
- To accomplish the above-mentioned objects, according to a second aspect of the present invention, there is provided a power generating system including: a compressor having a permanent magnet disposed on either of pistons or a cylinder block and coil parts provided to the other part to conduct power generation by means of the electromagnetic induction produced by the motions of the pistons; a converter converting the output voltage of the compressor; a battery part charging the power converted by the converter thereto; and a controller.
- According to the present invention, desirably, the power generating system further includes: a bypass line connected to the front and rear sides of the compressor located on a refrigerant line connecting the compressor, a condenser, an expansion valve, and an evaporator to allow the refrigerant passing through the compressor to move back to the front side of the compressor; and an adjusting valve adjusting the flow of refrigerant passing through the bypass line.
- To accomplish the above-mentioned objects, according to a third aspect of the present invention, there is provided a power generating method in a power generating system having a bypass line connected to the front and rear sides of a compressor located on a refrigerant line connecting the compressor, a condenser, an expansion valve, and an evaporator to allow a refrigerant passing through the compressor to move back to the front side of the compressor, and an adjusting valve adjusting the flow of refrigerant passing through the bypass line, the method including: the determination step of determining whether cooling is needed; if it is determined that cooling is needed in the determination step, the refrigerant circulation step of closing the bypass line through the adjusting valve and opening the refrigerant line to allow the refrigerant passing through the compressor to move, thus conducting the cooling and the power generation; and if it is determined that cooling is not needed, the bypass step of opening the bypass line through the adjusting valve and closing the refrigerant line to allow the refrigerant passing through the compressor to be bypassed, thus conducting the power generation.
- According to the present invention, desirably, if the external air temperature is over a reference temperature value, it is determined that cooling is needed in the determination step, and if the refrigerant discharge pressure of the compressor is over a reference pressure value, it is determined that cooling is needed in the determination step.
- The above and other objects, features and other advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention in conjunction with the accompanying drawings, in which:
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FIG. 1 is a sectional view showing a conventional compressor; -
FIG. 2 is a sectional view showing a compressor according to the present invention; -
FIG. 3 is a partially exploded perspective view showing the section of a cylinder block of the compressor according to the present invention; -
FIG. 4 is a perspective view showing the section of a coil part of the compressor according to the present invention; -
FIG. 5 is a sectional view showing a piston of the compressor according to the present invention; -
FIG. 6 is a sectional view showing a piston of the compressor according to another embodiment of the present invention; -
FIG. 7 is a schematic diagram showing a power generating system according to the present invention; -
FIG. 8 is a diagram showing the power generating system according to the present invention; -
FIGS. 9A and 9B are diagrams showing the flows of refrigerant in the power generating system according to the present invention; and -
FIG. 10 is a flow chart showing a power generating method according to the present invention. - Hereinafter, an explanation on a compressor and a power generating system and method using the same according to the present invention will be in detail given with reference to the attached drawing.
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FIG. 2 is a sectional view showing a compressor according to the present invention,FIG. 3 is a perspective view showing a section of a cylinder block of the compressor according to the present invention,FIG. 4 is a perspective view showing a section of a coil part of the compressor according to the present invention,FIG. 5 is a sectional view showing a piston of the compressor according to the present invention, andFIG. 6 is a sectional view showing another piston of the compressor according to the present invention. - According to the present invention, a
compressor 100 compresses a refrigerant through the linear reciprocating motions of pistons to conduct power generation by means of electromagnetic induction. More particularly, thecompressor 100 includes acylinder block 110, afront housing 120, arear housing 130, a drivingshaft 140, andpistons 150, wherein apermanent magnet 152 is disposed on either of thepistons 150 or thecylinder block 110, andcoil parts 114 are provided to the other part, so that power generation is achieved by means of the electromagnetic induction produced by the motions of thepistons 150. - According to the present invention, particularly, each
piston 150 has abody 151 and thepermanent magnet 152 mounted on the inner peripheral surface of thebody 151, and thecylinder block 110 includes thecoil parts 114 adapted to surround cylinder bores 112, thus providing easier manufacturing. - As shown in
FIGS. 2 to 7 , thepermanent magnet 152 is mounted on the inner peripheral surface of thebody 151 of eachpiston 150, and thecoil parts 114 are disposed on thecylinder block 110. Thecompressor 100 according to the present invention will be described with reference to the example as shown inFIGS. 2 to 7 . Of course, thecompressor 100 according to the present invention is not limited thereto, so that thecoil parts 114 may be disposed on the inner peripheral surfaces of thepistons 150 and thepermanent magnet 152 may be mounted on thecylinder block 110. - First, the
cylinder block 110 forms the frame of thecompressor 100 and includes a center bore 111 piercedly formed at the center thereof and the cylinder bores 112 piercedly formed around the center bore 111. The drivingshaft 140 is fitted to the center bore 111, and the cylinder bores 112 are formed to pass through thecylinder block 110 in a similar manner to the center bore 111 around the center bore 111 to form the spaces in which thepistons 150 are provided. That is, each cylinder bore 112 has a shape (a generally cylindrical shape) corresponding to the shape of eachpiston 150 in such a manner as to insert eachpiston 150 thereinto to allow eachpiston 150 to be linearly reciprocated therein. - At this time, the
front housing 120 and therear housing 130 are coupled to both ends of thecylinder block 110. - According to the present invention, the
coil parts 114 are disposed on thecylinder block 110 to generate the electromagnetic induction together with thepermanent magnet 152 mounted at the inside of thepistons 150. Thecoil parts 114 may be formed integrally to thecylinder block 110, and otherwise, mountinggrooves 113 are formed on thecylinder block 110 to coupledly insert thecoil parts 114 thereinto. - The mounting
grooves 113 are hollow spaces for surrounding the cylinder bores 112, into which thecoil parts 114 are inserted (SeeFIG. 3 ). That is, eachcoil part 114 has a cylindrical shape, and each mountinggroove 113 has the shape corresponding to thecoil part 114. - At this time, each
coil part 114 includes acoil 114 a and a first fixingmember 114 b adapted to fix thecoil 114 a thereto. Thefirst fixing member 114 b serves as a support around which thecoil 114 a is wound and as a protector of thecoil 114 a. At this time, the first fixingmember 114 b is formed of silicon steel adapted to stably support thecoil 114 a thereagainst. - Further, the
coil 114 a of eachcoil part 114 is formed in a single row to surround the cylinder bore 112 therewith (SeeFIG. 3 ), and as shown inFIG. 4 , thecoil 114 a has a concentric structure defined by apartition plate 114 c. The example as shown inFIG. 4 shows thecoil 114 a formed in two rows by means of thecylindrical partition plate 114 c. - In
FIGS. 3 and 4 , the first fixingmember 114 b of thecoil part 114 is formed to surround the whole area on which thecoil 114 a is wound, but thecompressor 100 according to the present invention is not limited thereto. That is, the first fixingmember 114 b may be formed to various shapes capable of fixing thecoil 114 a thereto, especially, capable of improving the power generation. Further, thecoil 114 a is formed in one row as shown inFIG. 3 and in two rows as shown inFIG. 4 , but of course, it may be formed in three or more rows. - The
pistons 150 receive the power from the drivingshaft 140 and linearly reciprocate inside the cylinder bores 112 of thecylinder block 110, so that the refrigerant is compressed to conduct the power generation. Eachpiston 150 includes thebody 151 and thepermanent magnet 152. - The
body 151 is a portion forming the outer shape of thepiston 150 and has a diameter capable of linearly reciprocating inside each cylinder bore 112 in such a manner as to be brought into contact with the inner peripheral surface of each cylinder bore 112 along the outer peripheral surface thereof. Thebody 151 has aconnection part 151 a protruding from one side thereof to receive the driving force of the drivingshaft 140, which will be described later. - The
permanent magnet 152 is mounted inside thebody 151 of eachpiston 150 to produce the power through the electromagnetic induction together with thecoil parts 114. - The
permanent magnet 152 has a cylindrical shape and is fixed to asecond fixing member 153 of eachpiston 150. - The
second fixing member 153 serves to fix thepermanent magnet 152 thereto and has a generally cylindrical shape, as shown inFIGS. 5 and 6 . - The
permanent magnet 152 may be formed of one permanent magnet or two or more permanent magnets. - For example, the
permanent magnet 152 may include first permanent magnets 152-1 having N and S poles located in the motion direction of eachpiston 150 and second permanent magnets 152-2 disposed at one side of each first permanent magnet 152-1 in such a manner as to have the same polarities as the facing polarities in the height direction thereof, wherein the first permanent magnets 152-1 and the second permanent magnets 152-2 are alternately arranged in the motion direction of each piston 150 (SeeFIG. 5 ). - The
permanent magnet 152 as shown inFIG. 5 include the three first permanent magnets 152-1 and the two second permanent magnets 152-2 alternately arranged in the motion direction of eachpiston 150. - As another example, as shown in
FIG. 6 , thepermanent magnet 152 may include a third permanent magnet 152-3 having an S pole located on the inner peripheral surface contacted with the second fixingmember 153 and an N pole located on the outer peripheral surface thereof, a fourth permanent magnet 152-4 located on one side of the third permanent magnet 152-3 in the motion direction of eachpiston 150 and having an N pole located at the side adjacent to the third permanent magnet 152-3, and a fifth permanent magnet 152-5 located at the other side of the third permanent magnet 152-3 in the motion direction of eachpiston 150 and having an N pole located at the side adjacent to the third permanent magnet 152-3. In more detail, the third permanent magnet 152-3 has the cylindrical S pole surroundingly contacted with the second fixingmember 153 and the N pole surrounded by the S pole. The fourth permanent magnet 152-4 and the fifth permanent magnet 152-5 are located at both sides of the third permanent magnet 152-3 in the longitudinal direction (that is, in the motion direction of each piston 150), having the N and S poles in the motion direction of eachpiston 150. At this time, the fourth permanent magnet 152-4 and the fifth permanent magnet 152-5 have the N poles located at the sides adjacent to the third permanent magnet 152-3 in the motion direction of eachpiston 150. - In addition to the shapes as shown in
FIGS. 5 and 6 , thepermanent magnet 152 according to the present invention may have various structures only if they easily produce power. - The
compressor 100 according to the present invention is applicable to the structure wherein thepistons 150 linearly reciprocate in the interiors of the cylinder bores 112 of thecylinder block 110, and the structure wherein the drivingshaft 140 rotating by the power of the engine and thepistons 150 are connected to each other may be variously formed. - On the other hand, the
compressor 100 as shown inFIG. 2 is a swash plate type compressor havingswash plates 143, which will be explained below. - The
front housing 120 is coupled to thecylinder block 110 to form a crankchamber 121 at the inside thereof, and therear housing 130 has a suction chamber (not shown) into which the refrigerant is introduced through a suction port (not shown), adischarge chamber 131, and a discharge port (not shown) communicating with thedischarge chamber 131 to discharge the refrigerant therefrom. At this time, the suction chamber is formed at the center of the surface of therear housing 130 facing thecylinder block 110, and thedischarge chamber 131 selectively communicates with the cylinder bores 112 and serves as the space in which the refrigerant compressed in the cylinder bores 112 stays before being discharged to the outside. - The
front housing 120, thecylinder block 110, and therear housing 130 are fastened to each other by means of fixing means, like bolts. - The
front housing 120 has apulley shaft 122 a protruding from one side thereof (the opposite side to the side coupled to the cylinder block 110) to rotatably fit apulley 122 thereto, thepulley 122 rotating by means of the driving force of the engine, and ashaft hole 123 formed piercedly from the center of thepulley shaft 122 a to the crankchamber 121 in such a manner as to mount the drivingshaft 140 therein. Arotor 142 is fixedly fitted to the drivingshaft 140 inserted into theshaft hole 123 on a given area of thecrank chamber 121. Therotor 142 is a generally circular plate, and theswash plates 143 are rotatably hinge-coupled to therotor 142. Theswash plates 143 are varied in angles fixed to the drivingshaft 140 in accordance with the discharging capacities of thecompressor 100. That is, theswash plates 143 have angles perpendicular to the longitudinal direction of the drivingshaft 140 or given tilted angles relative thereto. At this time, the outer circumferences of theswash plates 143 are connected to theconnection parts 151 a of thepistons 150 by means ofshoes 144. Eachconnection part 151 a is a portion protruding from one side of thebody 151 of eachpiston 150 toward thecrank chamber 121, which is not inserted into each cylinder bore 112 of thecylinder block 110. In more detail, if the outer circumferences of theswash plates 143 are connected to theconnection parts 151 a of thepistons 150 by means of theshoes 144, theswash plates 143 rotate together with the drivingshaft 140 and therotor 142, while being varied in the fixed angles thereof, thus allowing thepistons 150 to linearly reciprocate in the interiors of the cylinder bores 112. - On the other hand, a
valve assembly 160 is disposed between thecylinder block 110 and therear housing 130 to control the flow of refrigerant between the suction chamber and thedischarge chamber 131 of therear housing 130 and the cylinder bores 112 of thecylinder block 110. That is, thevalve assembly 160 controls the flows of refrigerant from the suction chamber to the cylinder bores 112 and from the cylinder bores 112 to thedischarge chamber 131. - The
compressor 100 according to the present invention is applicable to various compressors only if they compress a refrigerant through the linear reciprocating motions of pistons. -
FIG. 7 is a diagram showing a power generating system according to the present invention,FIG. 8 is another diagram showing the power generating system according to the present invention,FIGS. 9A and 9B are diagrams showing the flows of refrigerant in the power generating system according to the present invention, andFIG. 10 is a flow chart showing a power generating method according to the present invention. - A
power generating system 1000 according to the present invention includes thecompressor 100 as mentioned above, aconverter 210, abattery part 220, and acontroller 230. - The
converter 210 converts the output voltage of thecompressor 100 and includes a rectifier and a stabilizer. - The
battery part 220 charges the power converted by theconverter 210 thereto. - The
controller 230 monitors thecompressor 100, theconverter 210, and thebattery part 220 and controls their operation. - At this time, the
power generating system 1000 according to the present invention further includes abypass line 400 and an adjustingvalve 410. - The
bypass line 400 is connected to the front and rear sides of thecompressor 100 located on arefrigerant line 300 connecting thecompressor 100, acondenser 310, anexpansion valve 320, and anevaporator 330 to allow the refrigerant to flow therealong, and along thebypass line 400, accordingly, the refrigerant passing through thecompressor 100 moves back to the front side of thecompressor 100. - The
refrigerant line 300 connects thecompressor 100, thecondenser 310, theexpansion valve 320, and theevaporator 330 to move the refrigerant for cooling the vehicle therealong. At this time, both ends of thebypass line 400 are connected to the front and rear sides of thecompressor 100, so that the refrigerant passing through thecompressor 100 moves back to thecompressor 100, without being circulated along therefrigerant line 300. - On the other hand, the
condenser 310 heat-exchanges the high temperature, high pressure vapor refrigerant discharged from thecompressor 100 with external air, condenses the heat-exchanged refrigerant into high temperature, high pressure liquid, and discharges the condensed liquid refrigerant to theexpansion valve 320. Theexpansion valve 320 rapidly expands the refrigerant to low temperature, low pressure wet saturated refrigerant through a throttling process and discharges the wet saturated refrigerant. Theevaporator 330 heat-exchanges the low pressure liquid refrigerant throttled in theexpansion valve 320 with the air blowing to the interior of the vehicle and evaporates the liquid refrigerant to allow the air discharged to the interior of the vehicle to be cooled through the absorption of heat generated by the latent heat of the evaporation of the refrigerant. - The adjusting
valve 410 adjusts the flow of refrigerant passing through thebypass line 400 and is open and closed by the control of thecontroller 230. - According to the present invention, the
power generating system 1000 determines whether the refrigerant passing through thecompressor 100 is bypassed or not in accordance with the opening and closing of the adjustingvalve 410, so that if cooling is needed, the refrigerant passing through thecompressor 100 moves along therefrigerant line 300, and if cooling is not needed, the refrigerant passing through thecompressor 100 moves along thebypass line 400 and flows to thecompressor 100 again. - Accordingly, the
power generating system 1000 can produce the power required for the vehicle through the motions of thepistons 150 of thecompressor 100 and conduct the power generation together with the cooling of the vehicle. Otherwise, thepower generating system 1000 conducts only the power generation. - On the other hand, a power generating method according to the present invention includes the determination step, the refrigerant circulation step, and the bypass step, while using the
power generating system 1000 as mentioned above. - The determination step is conducted by the
controller 230 determining whether cooling is needed, and the determination is made by an external air temperature or a refrigerant discharge pressure. In more detail, if the external air temperature is over a reference temperature value, it is determined that cooling is needed, and otherwise, if the refrigerant discharge pressure of thecompressor 100 is over a reference pressure value, it is determined that cooling is needed. - If it is determined that cooling is needed in the determination step, the refrigerant circulation step is conducted by closing the
bypass line 400 through the adjustingvalve 410 and opening therefrigerant line 300 to allow the refrigerant passing through thecompressor 100 to move, thus conducting the cooling and the power generation. The refrigerant is circulated as shown inFIG. 9A , thus conducting the cooling, and thepistons 150 are linearly reciprocated, thus conducting the power generation. - If it is determined that cooling is not needed in the determination step, the bypass step is conducted by opening the
bypass line 400 through the adjustingvalve 410 and closing therefrigerant line 300 to allow the refrigerant passing through thecompressor 100 to be bypassed, thus conducting power generation. The refrigerant is circulated as shown inFIG. 9B , and thepistons 150 are linearly reciprocated, thus conducting the power generation. - As mentioned above, the
compressor 100 according to the present invention and thepower generating system 1000 and the power generating method using the same are configured wherein as the drivingshaft 140 rotates by receiving the driving force from the engine, the refrigerant is compressed in the cylinder bores 112 by thepistons 150 to conduct power generation, so that the power required for the vehicle can be produced. In more detail, thecompressor 100 according to the present invention and thepower generating system 1000 and the power generating method using the same are configured wherein power is stably supplied through the compressor necessarily disposed for cooling, without any separate components, so that the compressor and the power generating system and method can be simply applied to vehicles having a relatively large quantity of power consumed such as fuel cell vehicles, hybrid electric vehicles, and the like. - While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.
Claims (20)
1. A compressor comprising:
a cylinder block including a center bore formed through a center thereof and a plurality of cylinder bores formed around the center bore;
a driving shaft rotatably disposed through the center bore;
a plurality of pistons, each of the pistons linearly reciprocating within one of the cylinder bores via power received from the driving shaft to compress a refrigerant;
a permanent magnet; and
a coil part, wherein the permanent magnet is disposed in one of one of the pistons and the cylinder block and the coil part is disposed in an other of the one of the pistons and the cylinder block, wherein power generation is caused by electromagnetic induction from relative motion between the permanent magnet and the coil part disposed in the one of the pistons and the cylinder block.
2. The compressor according to claim 1 , wherein each of the pistons has a body and the permanent magnet is disposed on an inner peripheral surface of the body of the one of the pistons.
3. The compressor according to claim 2 , wherein the coil part is disposed in the cylinder block and configured to surround one of the cylinder bores.
4. The compressor according to claim 3 , wherein the cylinder block includes a mounting groove formed therein configured to receive the coil part therein.
5. The compressor according to claim 1 , wherein the coil part comprises a coil and a fixing member configured to affix the coil thereto.
6. The compressor according to claim 5 , wherein the fixing member is formed of silicon steel.
7. The compressor according to claim 5 , wherein the coil includes at least two rows arranged concentrically.
8. The compressor according to claim 7 , wherein one row of the coil is separated from another row of the coil by a partition plate.
9. The compressor according to claim 1 , wherein the one of the pistons includes a fixing member and the permanent magnet is affixed to the fixing member of the one of the pistons.
10. The compressor according to claim 1 , wherein the permanent magnet comprises a plurality of first permanent magnets each having N and S poles arranged in a direction of reciprocal motion of each of the pistons.
11. The compressor according to claim 10 , wherein the permanent magnet further comprises a plurality of second permanent magnets, wherein each of the second permanent magnets is disposed to one side of each of the first permanent magnets, wherein each of the second permanent magnets has a polarity that is the same as the polarity of an abutting pole of one of the first permanent magnets.
12. The compressor according to claim 1 , wherein the permanent magnet comprises a first permanent magnet having an S pole forming an inner peripheral surface thereof and an N pole forming an outer peripheral surface thereof.
13. The compressor according to claim 12 , wherein the permanent magnet further comprises a second permanent magnet disposed to a first side of the first permanent magnet in a direction of reciprocal motion of the pistons and a third permanent magnet formed to a second side of the first permanent magnet in the direction of reciprocal motion of the pistons.
14. The compressor according to claim 13 , wherein each of the second permanent magnet and the third permanent magnet includes an N pole abutting the first permanent magnet.
15. A power generating system comprising:
a compressor having a permanent magnet disposed in one of a piston and a cylinder block and a coil part disposed in an other of the piston and the cylinder block, the compressor causing power generation by electromagnetic induction produced by the motion of the piston relative to the cylinder block;
a converter configured to convert an output voltage of the compressor;
a battery part charging power converted by the converter to the battery part; and
a controller configured to control operation of the compressor, the converter, and the battery part.
16. The power generating system according to claim 15 , further comprising:
a refrigerant line fluidly connecting the compressor to a condenser, an expansion valve, and an evaporator to form a closed loop; and
a bypass line fluidly connected to the refrigerant line at an entrance and an exit of the compressor.
17. The power generating system according to claim 16 , further comprising an adjusting valve for adjusting a flow of the refrigerant through the bypass line.
18. A power generating method comprising the steps of:
providing a power generating system comprising a refrigerant line fluidly connecting a compressor, a condenser, an expansion valve, and an evaporator to each other to form a closed loop, wherein a bypass line is fluidly connected to an entrance and an exit of the compressor, the bypass line configured to allow a refrigerant exiting the compressor to return to the entrance thereof, an adjusting valve adjusting a flow of the refrigerant through the bypass line; and
determining whether cooling is needed;
wherein the bypass line is closed via the adjusting valve and the refrigerant is allowed to flow through the refrigerant line if it is determined that cooling is needed, thereby causing the power generation system to conduct cooling and generate power; and
wherein the bypass line is opened via the adjusting valve and the refrigerant line is closed to allow refrigerant exiting the compressor to be bypassed to the entrance of the compressor, thereby causing the power generation system to generate power.
19. The method according to claim 18 , wherein it is determined that cooling is needed in the determination step if an external air temperature is above a reference temperature value.
20. The method according to claim 18 , wherein it is determined that cooling is needed in the determination step if a discharge pressure of the refrigerant exiting the compressor is above a reference pressure value.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2014-0118647 | 2014-09-05 | ||
KR1020140118647A KR102071233B1 (en) | 2014-09-05 | 2014-09-05 | Compressor, power generating system and method thereof |
Publications (1)
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US20160069336A1 true US20160069336A1 (en) | 2016-03-10 |
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Family Applications (1)
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US14/580,776 Abandoned US20160069336A1 (en) | 2014-09-05 | 2014-12-23 | Compressor and power generating system and method of using the same |
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US (1) | US20160069336A1 (en) |
KR (1) | KR102071233B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11053931B2 (en) * | 2018-08-01 | 2021-07-06 | KISS-Engineering Inc. | Dual engine-compressor system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130001959A1 (en) * | 2010-04-05 | 2013-01-03 | Takaitsu Kobayashi | Linear power generator |
US20130033042A1 (en) * | 2011-08-03 | 2013-02-07 | Energy Harvesters Llc | Method and apparatus for generating electrical energy |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20040003277A (en) | 2002-07-02 | 2004-01-13 | 현대자동차주식회사 | Alternator using a leak-out hydrogen gas |
JP2005155376A (en) * | 2003-11-21 | 2005-06-16 | Denso Corp | Composite fluid machine |
-
2014
- 2014-09-05 KR KR1020140118647A patent/KR102071233B1/en active IP Right Grant
- 2014-12-23 US US14/580,776 patent/US20160069336A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130001959A1 (en) * | 2010-04-05 | 2013-01-03 | Takaitsu Kobayashi | Linear power generator |
US20130033042A1 (en) * | 2011-08-03 | 2013-02-07 | Energy Harvesters Llc | Method and apparatus for generating electrical energy |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11053931B2 (en) * | 2018-08-01 | 2021-07-06 | KISS-Engineering Inc. | Dual engine-compressor system |
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KR20160029331A (en) | 2016-03-15 |
KR102071233B1 (en) | 2020-03-02 |
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