US20140060316A1 - Vibration Energy Harvest Device - Google Patents

Vibration Energy Harvest Device Download PDF

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Publication number
US20140060316A1
US20140060316A1 US13/966,272 US201313966272A US2014060316A1 US 20140060316 A1 US20140060316 A1 US 20140060316A1 US 201313966272 A US201313966272 A US 201313966272A US 2014060316 A1 US2014060316 A1 US 2014060316A1
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US
United States
Prior art keywords
module
storage space
cylinder module
hydraulic motor
inner cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/966,272
Inventor
Chuen-An Chen
Che-Pin Chen
Yao-Ming Huang
Chieh Tung
Ming-Hua Shih
Te-Ming Yeh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Chung Shan Institute of Science and Technology NCSIST
Original Assignee
National Chung Shan Institute of Science and Technology NCSIST
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Assigned to CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY reassignment CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, CHE-PIN, CHEN, CHUEN-AN, HUANG, Yao-ming, SHIH, MIN-HUA, TUNG, CHIEH, YEH, TE-MING
Publication of US20140060316A1 publication Critical patent/US20140060316A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/062—Bi-tubular units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/01—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with one single cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/064—Units characterised by the location or shape of the expansion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F16F9/3257—Constructional features of cylinders in twin-tube type devices

Abstract

The present invention relates to a vibration energy harvest device. In the present invention, the vibration energy harvest device is provided for being used to recycle the mechanical energy and thermal energy generated during the vibration, and effectively to improve the power generation efficiency with newly added hydraulic motor and electricity generating unit. Wherein by using an ameliorating valve module and removing the damping hole in the prior art, no matter the damping oil flows from inner cylinder module through hydraulic motor to outer cylinder module or the contrary direction, the flowing damping oil could avoid the hydraulic motor from reciprocating to improve the power generation efficiency.

Description

    BACKGROUND OF THE INVENTION
  • 1. Technical Field
  • The present invention relates to a harvest device, and more particularly to a vibration energy harvest device able to recycle the mechanical energy and thermal energy generated during the vibration, and effectively to improve the power generation efficiency.
  • 2. Description of Related Art
  • Dampers are wildly used in many field, and more particularly to be used in the all kinds of vehicles or machinery which would produce vibration. When using in the vehicles, the dampers could buffer the vibration caused by the rough road surface or braking When using in machinery which would produce vibration could avoid the vibration which may affect the operation.
  • However, there is still a shortcoming by using the general dampers, the shortcoming is that the general dampers comprises a piston and filled with high viscosity of the damping oil, and the piston would pressurize the damping oil through a valve with a small aperture to generate a compressive or tensile resistance for absorbing vibration energy. In this case, the dampers would generate heat by mechanical energy caused by repeating shocks of the dampers. Thus the damping oil temperature would be raised. If the heat could not be effectively dissipated, the function of dampers would be affected.
  • Accordingly, in view of the conventional dampers body still have a shortcoming, the inventor of the present application has made great efforts to make inventive research thereon and eventually provided a vibration energy harvest device.
    • BRIEF SUMMARY OF THE INVENTION
  • The primary objective of the present invention is to provide a vibration energy harvest device for being used to recycle the mechanical energy and thermal energy generated during the vibration, and effectively to improve the power generation efficiency with newly added hydraulic motor and electricity generating unit. Wherein by using an ameliorating valve module and removing the damping hole in the prior art, no matter the damping oil flows from inner cylinder module through hydraulic motor to outer cylinder module or the contrary direction, the flowing damping oil could avoid the hydraulic motor from reciprocating to improve the power generation efficiency.
  • Thus, for achieving the objective of the present invention, the inventors of the present invention propose a vibration energy harvest device, comprising: an outer cylinder module, having a cover on one side itself; an inner cylinder module, being disposed in the outer cylinder module, wherein there is a first storage space formed between the outer cylinder module and the inner cylinder module, and there is an opening formed on the inner cylinder module; a valve module, being coaxially connected to the other side of the outer cylinder module and the inner cylinder module; a moveable piston, being disposed in the inner cylinder module, wherein there is a second storage space formed between the moveable piston and the valve module; a piston rod module, being and disposed in the inner cylinder module, wherein the piston rod module comprises: a piston rod, being extended through the cover and there is a third storage space formed between the piston rod and the inner cylinder module, wherein the third storage space is connected to the first storage space by the opening; and a fixed piston, being disposed in the inner cylinder module, and connected to the piston rod, wherein there is a accumulating chamber formed between the moveable piston and the fixed piston; a hydraulic motor, being coaxially connected to the valve module from outside of the inner cylinder module, and disposed in the outer cylinder module; and an electricity generating unit, being connected to the hydraulic motor from the outside of the outer cylinder module.
    • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
  • The invention as well as a preferred mode of use and advantages thereof will be best understood by referring to the following detailed description of an illustrative embodiment in conjunction with the accompanying drawings, wherein:
  • FIG. 1 is a structure diagram of a vibration energy harvest device according to the present invention;
  • FIG. 2 is a first operation diagram of the vibration energy harvest device according to the present invention; and
  • FIG. 3 is a second operation diagram of the vibration energy harvest device according to the present invention.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • To more clearly describe a vibration energy harvest device according to the present invention, embodiments of the present invention will be described in detail with reference to the attached drawings hereinafter.
  • First of all, the structure of the vibration energy harvest device will be described. With reference to FIG. 1, there is shown a structure diagram of the vibration energy harvest device according to the present invention. As shown in FIG. 1, the vibration energy harvest device consists of an outer cylinder module 1, an inner cylinder module 2, a valve module 3, a moveable piston 4, a piston rod module 5, a hydraulic motor 6, and an electricity generating unit 7.
  • In this vibration energy harvest device, the outer cylinder module 1 has a cover 11 on one side itself; the inner cylinder module 2 is disposed in the outer cylinder module 1, wherein there is a first storage space (A) formed between the outer cylinder module 1 and the inner cylinder module 2, and there is an opening 21 formed on the inner cylinder module 2; the valve module 3 is coaxially connected to the other side of the outer cylinder module 1 and the inner cylinder module 2, wherein the valve module 3 is a disc structure, and has a plurality of shuttle valves in the internal thereof; the moveable piston 4 disposed in the inner cylinder module 2, wherein there is a second storage space (B) formed between the moveable piston 4 and the valve module 3; a piston rod module 5 is disposed in the inner cylinder module 2, wherein the piston rod module 5 comprises: a piston rod 51, which is extended through the cover 11 and there is a third storage space (C) formed between the piston rod 51 and the inner cylinder module 2, wherein the third storage space (C) is connected to the first storage space (A) by the opening 11; and a fixed piston 52, which is disposed in the inner cylinder module 2, and connected to the piston rod 51, wherein there is a accumulating chamber (D) formed between the moveable piston 4 and the fixed piston 52, wherein the accumulating chamber (D) is an enclosure space, and the enclosure space could be filled with air or nitrogen for regulating pressure ; the hydraulic motor 6 is coaxially connected to the valve module 3 from outside of the inner cylinder module 2, and disposed in the outer cylinder module 1; the electricity generating unit 7 is connected to the hydraulic motor 6 from the outside of the outer cylinder module 1.
  • Therefore, through above descriptions, the structure of the vibration energy harvest device has been introduced completely and clearly. Next, the flow direction of the damping oil and the function of energy recycle would be explained. As shown in FIG. 2, which is a first operation diagram of the vibration energy harvest device according to the present invention. As the dotted arrow shown in FIG. 2, when the piston rod module 5 is applied an external thrust, the piston rod 51 would push the accumulating chamber (D), the accumulating chamber (D) would push the moveable piston 4, and the moveable piston 4 finally push the damping oil in the second storage space (B) to the valve module 3. In this time, the pressure of the inner cylinder module 2 is more than the outer cylinder module 2, so the damping oil flows into the valve module 3, and flows out of an opening 31 by switching of the Shuttling valve 33. Thus, the damping oil would also drive the hydraulic motor 6 to generate electricity for electricity generating unit 7. Then, the damping oil would flow into an opening 32, through the first storage space (A), and the opening 21, finally to the third storage space (C).
  • Then, as shown in FIG. 3, which is a second operation diagram of the vibration energy harvest device according to the present invention. As the dotted arrow shown in FIG. 3, when the piston rod module 5 is applied an external pulling force, the piston rod 51 would push the damping oil in the third storage space (C) from the opening 21 to the first storage space (A). In this time, the pressure of the outer cylinder module 1 is more than the inner cylinder module 2, so when the damping oil flows into the opening 31 of the valve module 3 by switching of the Shuttling valve 33. Thus, the damping oil would also drive the hydraulic motor 6 to generate electricity for electricity generating unit 7. Then, the damping oil would flow into the opening 32, through the second storage space (B).
  • Therefore, through above descriptions, when the piston rod 51 in the vibration energy harvest device is pushed and pulled to make the damping oil flow to the hydraulic motor 6 to drive the rotor of the hydraulic motor 6. In this case, if there is no valve module 3, the rotor would turn clockwise rotation to counter-clockwise rotation, and the rotation of the rotor would slow down, stop, and restart, thus it would reduce the efficiency of electricity generation, and the rotor would be susceptible to damage. So the vibration energy harvest device according to the present invention is newly added the valve module 3, when the piston rod 51 in the vibration energy harvest device is pushed and pulled, the damping oil would always drive the rotor of the hydraulic motor 6 in the same rotation direction to improve the efficiency of electricity generation.
  • So that, according to above descriptions, the present invention has been completely and clearly disclosed; and in summary, the main advantage of the present invention is that with newly added hydraulic motor and electricity generating unit, the mechanical energy and thermal energy generated during the vibration could be recycled, and the power generation efficiency could be effectively improve. Moreover, by using an ameliorating valve module and removing the damping hole in the prior art, no matter the damping oil flows from inner cylinder module through hydraulic motor to outer cylinder module or the contrary direction, the flowing damping oil could avoid the hydraulic motor from reciprocating to improve the power generation efficiency.
  • The above description is made on embodiments of the present invention. However, the embodiments are not intended to limit scope of the present invention, and all equivalent implementations or alterations within the spirit of the present invention still fall within the scope of the present invention.

Claims (7)

We claim:
1. A vibration energy harvest device, comprising:
an outer cylinder module, having a cover on one side itself;
an inner cylinder module, being disposed in the outer cylinder module, wherein there is a first storage space formed between the outer cylinder module and the inner cylinder module, and there is an opening formed on the inner cylinder module;
a valve module, being coaxially connected to the other side of the outer cylinder module and the inner cylinder module;
a moveable piston, being disposed in the inner cylinder module, wherein there is a second storage space formed between the moveable piston and the valve module;
a piston rod module, being disposed in the inner cylinder module, wherein the piston rod module comprises:
a piston rod, being extended through the cover and there is a third storage space formed between the piston rod and the inner cylinder module, wherein the third storage space is connected to the first storage space by the opening; and
a fixed piston, being disposed in the inner cylinder module, and connected to the piston rod, wherein there is an accumulating chamber formed between the moveable piston and the fixed piston;
a hydraulic motor, being coaxially connected to the valve module from outside of the inner cylinder module, and disposed in the outer cylinder module; and
an electricity generating unit, being connected to the hydraulic motor from the outside of the outer cylinder module.
2. The vibration energy harvest device of claim 1, wherein there is anti-vibration oil flowing through in the first storage space, the second storage space, and third storage space.
3. The vibration energy harvest device of claim 1, wherein the accumulating chamber is an enclosure space, and the enclosure space is filled with the group consisting of: air or nitrogen.
4. The vibration energy harvest device of claim 1, wherein when the piston rod module is applied an external thrust, the anti-vibration oil would flow from the valve module, through the hydraulic motor, the first storage space to the third storage space, and when the anti-vibration oil flows through the hydraulic motor, the anti-vibration oil would drive the hydraulic motor to generate electricity for electricity generating unit.
5. The vibration energy harvest device of claim 1, wherein when the piston rod module is applied an external pulling force, the anti-vibration oil would flow from the third storage space, through the first storage space, the valve module, the hydraulic motor, to the second storage space, and when the anti-vibration oil flows through the hydraulic motor, the anti-vibration oil would drive the hydraulic motor to generate electricity for electricity generating unit.
6. The vibration energy harvest device of claim 1, wherein the valve module 3 is a disc structure, and having a plurality of shuttle valves in the internal thereof, wherein the plurality of shuttle valves would adjust the flowing direction of the anti-vibration oil according to the pressure of the first storage space and the second storage space, and keep the rotor of the hydraulic motor rotates in the same direction.
7. The vibration energy harvest device of claim 1, wherein the electricity generating unit is a generator.
US13/966,272 2012-08-31 2013-08-13 Vibration Energy Harvest Device Abandoned US20140060316A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW101131771A TWI541437B (en) 2012-08-31 2012-08-31 Vibration energy recovery device
TW101131771 2012-08-31

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105337445A (en) * 2015-11-27 2016-02-17 华尔达（厦门）塑胶有限公司 Brake structure used for tubular motor
US20170173748A1 (en) * 2015-12-18 2017-06-22 Robert Bosch Gmbh Suction Device for a Portable Power Tool
CN111536185A (en) * 2020-05-14 2020-08-14 镇江市亚凤气动元件有限公司 Controllable gas spring opened at tail part
US20200331315A1 (en) * 2017-12-29 2020-10-22 Shenzhen Polytechnic Active suspension system, vibration damper and vibration damping component

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265823B (en) * 2014-08-07 2017-04-26 宁波鸿裕工业有限公司 Shock absorber with base power generation
CN104295650B (en) * 2014-08-18 2016-08-24 宁波鸿裕工业有限公司 Linear type power generating type vibroshock
CN104819241A (en) * 2015-04-29 2015-08-05 淮阴工学院 Built-in blade motor type energy recovery absorber
CN105569940B (en) * 2016-02-24 2018-11-16 上海交通大学 A kind of vibration energy absorption conversion equipment
CN108757809B (en) * 2018-06-08 2020-04-24 淮阴工学院 Vibration energy recovery type shock absorber for vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8063498B2 (en) * 2009-02-27 2011-11-22 GM Global Technology Operations LLC Harvesting energy from vehicular vibrations
WO2011159874A2 (en) * 2010-06-16 2011-12-22 Levant Power Corporation Integrated energy generating damper
US20120019008A1 (en) * 2010-07-26 2012-01-26 Charles E. Hughey Hybrid vertical energy storage system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8063498B2 (en) * 2009-02-27 2011-11-22 GM Global Technology Operations LLC Harvesting energy from vehicular vibrations
WO2011159874A2 (en) * 2010-06-16 2011-12-22 Levant Power Corporation Integrated energy generating damper
US20120019008A1 (en) * 2010-07-26 2012-01-26 Charles E. Hughey Hybrid vertical energy storage system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105337445A (en) * 2015-11-27 2016-02-17 华尔达（厦门）塑胶有限公司 Brake structure used for tubular motor
US20170173748A1 (en) * 2015-12-18 2017-06-22 Robert Bosch Gmbh Suction Device for a Portable Power Tool
US20200331315A1 (en) * 2017-12-29 2020-10-22 Shenzhen Polytechnic Active suspension system, vibration damper and vibration damping component
US11752823B2 (en) * 2017-12-29 2023-09-12 Shenzhen Polytechnic Active suspension system, vibration damper and vibration damping component
CN111536185A (en) * 2020-05-14 2020-08-14 镇江市亚凤气动元件有限公司 Controllable gas spring opened at tail part

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Publication number Publication date
TW201408879A (en) 2014-03-01
TWI541437B (en) 2016-07-11

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Effective date: 20130709

STCB Information on status: application discontinuation

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