CN109340035A - A kind of foldable double-chain wave stream power generator - Google Patents
A kind of foldable double-chain wave stream power generator Download PDFInfo
- Publication number
- CN109340035A CN109340035A CN201811376548.0A CN201811376548A CN109340035A CN 109340035 A CN109340035 A CN 109340035A CN 201811376548 A CN201811376548 A CN 201811376548A CN 109340035 A CN109340035 A CN 109340035A
- Authority
- CN
- China
- Prior art keywords
- chain
- impeller
- wave stream
- power generator
- double
- 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.)
- Pending
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 15
- 238000005260 corrosion Methods 0.000 claims description 7
- 239000013535 sea water Substances 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 239000003653 coastal water Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000008010 sperm capacitation Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/22—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the flow of water resulting from wave movements to drive a motor or turbine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The present invention relates to a kind of foldable double-chain wave stream power generator, including energy capture unit, energy capture unit to include chain and engage a pair of of gear of assembly with chain, and a pair of of gear is supported by supporting mechanism；The impeller assembly that setting is made of several impellers outside chain, has rotary motion pair between impeller assembly and chain, which is equipped with the flexible springs that can prevent impeller Yu chain relative rotation；Arc-shaped guide rail is also fixed on supporting mechanism, one section of spacing which is located at below the chain and unrestrained side of back and distance chain is fixed；Spacing is equal or slightly larger than the thickness of impeller；Gear and the drive shaft for driven generator group are coaxially connected；Foldable double-chain wave stream power generator is set to seashore side, and energy capture unit carries out energy capture to the wave stream on bank.The present invention can convert mechanical energy for the impact kinetic energy of wave stream, and then driven generator generates electricity, to the amusement and recreation facility power of seashore side tourist.
Description
Technical field
The present invention relates to a kind of marine power generator for utilizing wave energy, and specifically a kind of foldable double-chain wave flows
Power generator is suitable for seashore side.
Background technique
The wave stream that seashore side is patted has the kinetic energy and lateral impact forces of water, and longshore tourist is more, and resident is also more, belongs to
Peak of power consumption area, wave energy generating set in the prior art be set to more it is marine, particular for bank wave energy hair
Electricity design, therefore, how be directed to bank wave energy the characteristics of, provide it is a kind of wave stream power generator, by wave stream impact kinetic energy
It is converted into mechanical energy, and then driven generator generates electricity, and to the amusement and recreation facility power of seashore side tourist, solves a part of seashore
Side resident's power demands, have become urgent technical problem to be solved in the field.
Summary of the invention
The purpose of the present invention is designing a kind of foldable double-chain wave stream power generator for longshore wave stream characteristic,
Mechanical energy is converted by the impact kinetic energy of wave stream, and then driven generator generates electricity, is supplied to the amusement and recreation facility of seashore side tourist
Electricity solves a part of seashore side resident's power demands.
The present invention takes following technical scheme:
A kind of foldable double-chain wave stream power generator, including energy capture unit, the energy capture unit includes chain
Item 9 and a pair of of gear 16 that assembly is engaged with chain 9, a pair of of gear 16 are supported by supporting mechanism；It is arranged outside chain 9 by several
The impeller assembly that impeller is constituted, has rotary motion pair between impeller assembly and chain 9, which is equipped with and can prevent
The flexible springs 18 of impeller and 9 relative rotation of chain；Arc-shaped guide rail 17 is also fixed on supporting mechanism, the arc-shaped guide rail 17
Positioned at 9 lower section of chain and the unrestrained side of back and one section of spacing of the fixation of distance chain 9；The spacing is equal or slightly larger than the thickness of impeller
Degree；Gear 16 and the drive shaft 7 for driven generator group 6 are coaxially connected；The foldable double-chain wave stream power generator is set
In seashore side, energy capture unit carries out energy capture to the wave stream on bank.
It further, further include electric energy processing unit, the electric energy processing unit includes generating set 6, the generator
Group 6 is connect with power supply line 4；Power supply line 4, electric energy processing unit 3, three-phase current source 2, electrical equipment 1 are sequentially connected；Electrical equipment
It is arranged on coastal waters bank；Electric energy processing equipment is for carrying out current stabilization, inversion processing.
Further, chain 9 is double-layer chain；The impeller assembly includes impeller, pedestal support plate 20, flexible springs
18, impeller lower end is rotatablely connected by bottom mounting apertures 22 and pedestal support plate 20, impeller leading faces by flexible springs 18 with
Pedestal support plate 20 is fixedly connected, and pedestal support plate 20 is fixed on the upper layer position of double-layer chain.
Further, in energy capture unit, gear end installs ratchet 15, and supporting mechanism installs pawl 14, installs spine
The effect for taking turns pawl is to prevent gear from inverting.
Further, in energy capture unit, drive shaft 7, support rod 8, double-layer chain, 10 structure of impeller sets are for a long time
It is exposed in seawater corrosion with high salt, material surface does antirust and anti-corrosion treatment.
Further, the impeller is filled in bowl, is big end towards unrestrained end, and carrying on the back unrestrained end is small end.
Further, the generating set 6 is by the padded support of padded pedestal 6.
Further, the electric energy processing unit be set to the distance remote enough apart from seashore side, not with contact with sea water, no
Do anti-corrosion treatment.
The beneficial effects of the present invention are:
1) impeller sets have scalability, and when in face of the frontal impact of wave stream, impeller is in state is magnified, back to Lang Liuchong
When hitting, impeller is in folded state, can prevent the counteracting up and down of unrestrained stream impact force, what reduction impeller generated when impacting back to wave stream
Resistance, to obtain maximum wave stream capacitation efficiency.
2) energy capture unit and electric energy processing unit are separated, and energy capture unit can expose in the seawater, nothing
Encapsulation process is needed, cost is reduced.
3) when the energy capture unit of the reversed wave stream impact present apparatus, the flexure plane of arc-shaped guide rail can stop a large amount of reversed
Impact force guarantees the normal operation of the present apparatus.
4) a pair of of gear matched with chain naturally form two power output ends, can realize two by two drive shafts
The power generation of platform generator, generating efficiency are high.
Detailed description of the invention
Fig. 1 is the axonometric drawing of the foldable double-chain wave stream power generator of the present invention.
Fig. 2 is the left view of the foldable double-chain wave stream power generator of the present invention.
Fig. 3 is the front view of energy capture unit.
Fig. 4 is the schematic diagram for the impeller assembly being fixedly mounted on chain.
In figure, 1- electrical equipment, -2 three-phase current sources, 3- electric energy processing unit, 4- power supply line, 5- generating set, 6- are given
The padded pedestal of generator, 7- drive shaft, 8- support rod, 9- chain, 10- impeller sets, 11- screw nut fastener, 12- device
Bottom support, 13- pedestal, 14- pawl, 15- ratchet, 16- gear, 17- arc-shaped guide rail, 18- flexible springs, 19- impeller back
Face, the support plate of 20- impeller and pedestal, 21- rotation axis, 22- bottom mounting apertures.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific examples.
The wave stream that seashore side is patted has the kinetic energy and lateral impact forces of water, and longshore tourist is more, and resident is also more, belongs to
Peak of power consumption area can convert mechanical energy for the impact kinetic energy of wave stream, and then driven generator generates electricity, and can give seashore side
The amusement and recreation facility power of tourist, moreover it is possible to solve a part of seashore side resident's power demands.The present apparatus is applied to seashore side.No
Suitable for deep-sea, it is not suitable for the occasion that wave stream did not had device completely.
The present apparatus is broadly divided into energy capture unit and electric energy processing unit two parts.
Referring to fig. 2-4, energy capture unit is mainly made of double-layer chain 9, impeller sets 10, this 3 part of gear 16.Wave stream
Impeller sets 10 are impacted, are rotated above chain in the impeller stress drive chain for magnifying state, the rotation of chain-driving gear, and then band
The generating set 5 of electrokinetic energy processing unit generates electricity.
In energy capture unit, it should be noted that as shown in figure 3, wave stream impact impeller sets 10, double-layer chain 9 are suitable
Hour hands rotation, when 17 inner wall of arc-shaped guide rail touches wheel backface, can resist impeller, the flexible springs 18 on compression impeller
It shrinks, impeller is folded towards 9 direction of double-layer chain, and the oppressive force F1 of arc-shaped guide rail inner wall is greater than the contractility F2 of spring at this time；
When unrestrained stream continues impact impeller, and double-layer chain is rotated clockwise to disengaging arc-shaped guide rail, the compressing of arc-shaped guide rail inner wall is lost
After power, impeller restores the opening state of most initial because of tension force of spring.
It is noted here that impeller is in state is magnified, and back to when wave stream impact, impeller is in when in face of the frontal impact of wave stream
Folded state is that wave stream impact force is offset up and down in order to prevent, reduces impeller back to the resistance generated when wave stream impact, to obtain
Obtain maximum wave stream capacitation efficiency.
With continued reference to Fig. 3, in energy capture unit, gear end installs ratchet 15, and support rod installs pawl 14.Spine is installed
The effect for taking turns pawl is to prevent gear from inverting.
Referring to fig. 4, the installing component of impeller mainly has, can reduction spring 18, wheel backface 19, impeller and pedestal support
This 5 part of plate 20, rotation axis 21, bottom mounting apertures 22 composition.Wherein the support plate 20 of impeller and pedestal, rotation axis 21 are connected to
, clearance fit when rotation axis 21, bottom mounting apertures 22.When wheel backface receives the compressing of arc-shaped guide rail inner wall, spring contraction,
So that wheel backface 19, impeller make circumference around bottom mounting apertures 22 together with the support plate 20 of pedestal, this 3 part of rotation axis 21
Movement, to make impeller fold up, such as two impellers in Fig. 3 below chain.
In this embodiment, in energy capture unit, gear drive shaft 7, support rod 8, double-layer chain 9, impeller sets 10
This four structures are exposed in seawater corrosion with high salt for a long time, and material surface will do specially treated, prevent extension use of getting rusty
Service life.
Electric energy processing unit part, electric energy processing unit mainly have electrical equipment 1, three-phase current source 2, electric energy processing unit
3, this five part of power supply line 4, generating set 5 forms.The power generation of 7 driven generator of drive shaft, the electric current exported are filled to electric energy processing
The processing such as 3 carry out current stabilizations, inversion is set, then uniformly supplies electricity to electrical equipment.
In the present embodiment:
1) impeller sets have scalability, and when in face of the frontal impact of wave stream, impeller is in state is magnified, back to Lang Liuchong
When hitting, impeller is in folded state, can prevent the counteracting up and down of unrestrained stream impact force, what reduction impeller generated when impacting back to wave stream
Resistance, to obtain maximum wave stream capacitation efficiency.
2) energy capture unit and electric energy processing unit are separated, and energy capture unit can expose in the seawater, nothing
Encapsulation process is needed, cost is reduced.
3) when the energy capture unit of the reversed wave stream impact present apparatus, the flexure plane of arc-shaped guide rail can stop a large amount of reversed
Impact force guarantees the normal operation of the present apparatus.
4) a pair of of gear matched with chain naturally form two power output ends, can realize two by two drive shafts
The power generation of platform generator, generating efficiency are high.
It is the preferred embodiment of the present invention above, those of ordinary skill in the art can also carry out various changes on this basis
It changes or improves, under the premise of not departing from the present invention total design, these transformation or improve all should belong to that the present invention claims guarantors
Within the scope of shield.
Claims (8)
1. a kind of foldable double-chain wave stream power generator, it is characterised in that:
Including energy capture unit, the energy capture unit includes chain (9) and engages a pair of of gear of assembly with chain (9)
(16), a pair of of gear (16) is supported by supporting mechanism；The impeller assembly that setting is made of several impellers outside chain (9), impeller
There is rotary motion pair, which, which is equipped with, can prevent impeller and chain (9) relative rotation between component and chain (9)
Flexible springs (18)；Arc-shaped guide rail (17) are also fixed on supporting mechanism, which is located under chain (9)
One section of spacing that side and the unrestrained side of back and distance chain (9) are fixed；The spacing is equal or slightly larger than the thickness of impeller；Gear (16)
It is coaxially connected with the drive shaft (7) for driven generator group (6)；
The foldable double-chain wave stream power generator is set to seashore side, and energy capture unit carries out energy to the wave stream on bank and catches
It obtains.
2. foldable double-chain wave stream power generator as described in claim 1, it is characterised in that: further include that electric energy processing is single
Member, the electric energy processing unit include generating set (6), and the generating set (6) connect with power supply line (4)；Power supply line (4),
Electric energy processing unit (3), three-phase current source (2), electrical equipment (1) are sequentially connected；Electrical equipment is arranged on coastal waters bank；
Electric energy processing equipment is for carrying out current stabilization, inversion processing.
3. foldable double-chain wave stream power generator as described in claim 1, it is characterised in that: chain (9) is double-layer chain；
The impeller assembly includes impeller, pedestal support plate (20), flexible springs (18), and impeller lower end passes through bottom mounting apertures (22)
It being rotatablely connected with pedestal support plate (20), impeller leading faces are fixedly connected by flexible springs (18) with pedestal support plate (20),
Pedestal support plate (20) is fixed on the upper layer position of double-layer chain.
4. foldable double-chain wave stream power generator as described in claim 1, it is characterised in that: in energy capture unit,
Gear end installs ratchet (15), and supporting mechanism installs pawl (14), and the effect for installing click is to prevent gear from inverting.
5. foldable double-chain wave stream power generator as described in claim 1, it is characterised in that: in energy capture unit,
Drive shaft (7), support rod (8), double-layer chain, impeller sets (10) structure are exposed in seawater corrosion with high salt for a long time, material
Do antirust and anti-corrosion treatment in surface.
6. foldable double-chain wave stream power generator as claimed in claim 2, it is characterised in that: the impeller is filled in bowl,
It is big end towards unrestrained end, carrying on the back unrestrained end is small end.
7. foldable double-chain wave stream power generator as claimed in claim 2, it is characterised in that: the generating set (6) by
The padded support of padded pedestal (6).
8. foldable double-chain wave stream power generator as claimed in claim 7, it is characterised in that: the electric energy processing unit is set
Anti-corrosion treatment is not done not with contact with sea water in the distance remote enough apart from seashore side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811376548.0A CN109340035A (en) | 2018-11-19 | 2018-11-19 | A kind of foldable double-chain wave stream power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811376548.0A CN109340035A (en) | 2018-11-19 | 2018-11-19 | A kind of foldable double-chain wave stream power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340035A true CN109340035A (en) | 2019-02-15 |
Family
ID=65315960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811376548.0A Pending CN109340035A (en) | 2018-11-19 | 2018-11-19 | A kind of foldable double-chain wave stream power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340035A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1795330A (en) * | 2003-05-27 | 2006-06-28 | 尤金·G·利格曼 | Low head, dynamic variable pitch, submersible hydro generator |
| KR20100094767A (en) * | 2009-02-19 | 2010-08-27 | 우정택 | Wave-power generation |
| CN202348544U (en) * | 2011-12-08 | 2012-07-25 | 浙江大学宁波理工学院 | Ocean current energy power generation device |
| CN102758719A (en) * | 2011-04-29 | 2012-10-31 | 伍海光 | Tidal power generation device |
| CN104500319A (en) * | 2014-12-24 | 2015-04-08 | 毛光利 | Sea wave countercurrent generator |
| CN108105022A (en) * | 2017-12-18 | 2018-06-01 | 中国矿业大学 | A kind of Waterwheel-type tidal-energy electric generator set |
| CN209228522U (en) * | 2018-11-19 | 2019-08-09 | 上海海洋大学 | A kind of foldable double-chain wave stream power generator |
-
2018
- 2018-11-19 CN CN201811376548.0A patent/CN109340035A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1795330A (en) * | 2003-05-27 | 2006-06-28 | 尤金·G·利格曼 | Low head, dynamic variable pitch, submersible hydro generator |
| KR20100094767A (en) * | 2009-02-19 | 2010-08-27 | 우정택 | Wave-power generation |
| CN102758719A (en) * | 2011-04-29 | 2012-10-31 | 伍海光 | Tidal power generation device |
| CN202348544U (en) * | 2011-12-08 | 2012-07-25 | 浙江大学宁波理工学院 | Ocean current energy power generation device |
| CN104500319A (en) * | 2014-12-24 | 2015-04-08 | 毛光利 | Sea wave countercurrent generator |
| CN108105022A (en) * | 2017-12-18 | 2018-06-01 | 中国矿业大学 | A kind of Waterwheel-type tidal-energy electric generator set |
| CN209228522U (en) * | 2018-11-19 | 2019-08-09 | 上海海洋大学 | A kind of foldable double-chain wave stream power generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2655854C (en) | Lever operated pivoting float with generator | |
| US8686583B2 (en) | Ocean wave-powered electric generator | |
| MX2009004472A (en) | Method and apparatus for converting ocean wave energy into electricity. | |
| CA2666259A1 (en) | Wave energy converter | |
| NZ593968A (en) | System for conversion of aquatic wave energy into electrical energy | |
| CN109441702A (en) | Bidirectional wave energy power generation device based on ratchet mechanism | |
| CA2671024A1 (en) | Power generation system using helical turbine | |
| CN108730128A (en) | Wind generator system | |
| CN209228522U (en) | A kind of foldable double-chain wave stream power generator | |
| CN109209742A (en) | A kind of wave energy generating set for marine marker | |
| CN104153330A (en) | Breakwater and wave power generation device | |
| WO2008048050A1 (en) | Wave energy converter | |
| CN109340035A (en) | A kind of foldable double-chain wave stream power generator | |
| CN201943876U (en) | Semi-submerged type wind-wave electricity-generating device | |
| CN103573544A (en) | Wave driving power generation device | |
| CN115614213B (en) | Wave energy power generation device with flexible air bag structure | |
| Amarkarthik et al. | Laboratory experiment on using non-floating body to generate electrical energy from water waves | |
| GB2526605A (en) | A vertical axis turbine | |
| WO2010117173A3 (en) | Wave power generating apparatus | |
| US10337488B1 (en) | Wave energy converter deep sea mounting system | |
| CN107269455B (en) | Power generation device depending on swing | |
| CN115852894A (en) | Floating breakwater capable of being used as flexible airbag wave power generation device | |
| CN106762365B (en) | A kind of utilizing ocean current energy and solar energy composite generating set | |
| CN102536623A (en) | Water-pendulum wave-energy power generation device | |
| CN207510666U (en) | The floating drum fixing device of floatation type photovoltaic plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |