WO2002079745A1 - Schwingungsaufnehmer mit unverlierbarem befestigungsmittel - Google Patents
Schwingungsaufnehmer mit unverlierbarem befestigungsmittel Download PDFInfo
- Publication number
- WO2002079745A1 WO2002079745A1 PCT/DE2002/000800 DE0200800W WO02079745A1 WO 2002079745 A1 WO2002079745 A1 WO 2002079745A1 DE 0200800 W DE0200800 W DE 0200800W WO 02079745 A1 WO02079745 A1 WO 02079745A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vibration sensor
- recess
- component
- vibrations
- sensor according
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
- G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
Definitions
- the present invention relates to a vibration generator for direct or direct attachment to ⁇ inero
- Vibration-containing component with a captive fastening jolt such as. B.
- a Scnrauoe the present invention relates to a vibration sensor designed as a knock sensor with a captive fastening nut for an engine.
- DE- ⁇ 4 03 660 AI discloses a vibration sensor with a pressure pulse, which is used in knock sensors for internal combustion engines.
- the known pressure pulse is firmly attached to the component whose vibrations are to be detected via a support area.
- the vibrations to be detected are knocking noises of the internal combustion engine in operation, which are passed via the pulses to a piezoceramic vibration sensor as a knock sensor and converted into an evaluable output signal.
- the type of attachment or the tension of this sensor element to the pressure sleeve and the attachment of the pressure sleeve to the vibrations Part nat n.er great influence a_.f the manufacturing prices and the assembly, wcce the assembly often on relatively uncgan i-cner. Make _.mp room must be done.
- DE-197 27 704 A1 proposes a vibration sensor with a pressure pulse, in which a cylindrical recess is provided in a bore of the pressure pulse, which in the pressure pulse either in the area of a lower contact surface or at the top at the opposite end on the Druckhulse is formed.
- a Kiemr ⁇ nng is arranged to hold a fastening screw.
- the vibration sensor according to the invention for indirect or direct attachment to a component having vibrations, such as, for. 3. a combustion engine, with the features of claim 1, has the advantage that a 31ock ⁇ erelement is arranged such that it cannot fall out when mounting the fastening means on the vibration sensor.
- the fastening element is formed by the ring-shaped 5lo ⁇ In the area of the fastening element, a recess is provided for receiving the locking element and / or a recess is formed on a transition area between a pressure pulse and the component having the oscillation.
- v xr ⁇ erfmd ⁇ ngsgeclar e Befes j.g ⁇ ngselemsnt such as. E. a screw, held on the vibration sensor. This makes it easier, in particular, to mount the vibration sensor, particularly in confined spaces in an engine compartment, when using the vibration sensor as a knock sensor.
- the annular Biockiereminent according to the invention is particularly preferably designed as O-Pmg. This enables a standard component to be used for the blocking element, which is particularly cost-effective.
- the blocker element according to the invention is preferably made of rubber, plastic or metal.
- the annular Biockierelindent is designed as a closed or open ring, ie as a ring with a slot.
- the blocking element particularly preferably has a circular cross section.
- the Biockierelindent has a cval-shaped or a polygonal cross-section, in particular hexagonal or octagonal.
- the blocking element is more rigid, so that it is more difficult to strip off the shaft of the fixing element.
- a form fit can particularly preferably be provided between the Biockierelindent and the recess.
- the cutout on the transition door is.
- the Biockiereminent according to the invention can be arranged in the assembled state of this recess formed at the transition region. Dm chamfers can be formed on the vibrating component in a simple "manner at the Druckhulse OZ ⁇ ?. that cost so are very small.
- FIG. 1 shows a schematic sectional illustration of a vibration detector with a biological element according to a first exemplary embodiment of the present invention
- FIG. 2 shows a plan view of the blocking element used in FIG. 1,
- Figure 3 is a schematic sectional view of a vibration sensor with a blocking element according to a second embodiment of the present invention.
- the Scnw gungsetzillon 1 comprises a Drucknulse 9, m which is formed a central bore 10.
- a fastening screw 2 is guided through this central bore 10 in order to attach the vibration sensor 1 to a component 12 having vibrations, such as ⁇ .
- B an engine block.
- the fastening screw 2 has a head 3 and a cylindrical shaft &
- the shaft 4 has a shaft end 5 without thread and a shaft region 6 with thread.
- a threaded bore 13 is screwed into the engine block 12 in order to fasten the vibration sensor 1 to the shaft area 6 m.
- the vibration detector 1 comprises, in a known manner, a piezoceramic disk, a seismic mass and a plate spring for biasing the seismic mass onto the piezoceramic disk, which are arranged around the pressure sleeve.
- a contact and an insulating washer are arranged on each side of the piezoceramic disk.
- the contact disks are connected to a control device via a plug connection 11 and pass on the signals of the piezoceramic disk to the control device.
- the parts mentioned above are surrounded by a genus 8.
- a groove 14 is also provided on the fastening screw 2 in the shaft region 5 without thread, which groove 14 called e es Bloek ⁇ ere_ererts "
- the bioe.-cier ⁇ lement 7 is, as shown in FIG. 2, a closed ring eugeo_l- det and preferably made of rubber.
- the biological element 7 is arranged in the groove 14 on the fastening element, so that after the insertion of the fastening element 2 m the bore 10 the fastening element 2 is held securely so that it falls out of the fastener 2 ver ⁇ can be prevented.
- the Biockiereminent 7 between ⁇ m shaft 4 un ⁇ the Bonrung 10 of the pressure sleeve 9 provides a clamping force that prevents the fastening element 2 from falling out.
- FIG. 3 shows a vibration sensor 1 according to a second exemplary embodiment of the present invention. Identical or functionally identical parts are identified by the same reference numerals as in the first exemplary embodiment and are therefore not explained in detail below.
- _e _n Figure 3 in contrast to the first A ⁇ SFM ru.ogsb ⁇ mpiel at second a bend 17 is formed on a transition between the pressure noses S and ⁇ e vibrations on an iron component 12.
- This recess 17 viro ourcn provided a chamfer 15 on the pressure sleeve 9 or a chamfer 16 on the engine block 12.
- the recess 17 has a V-shaped shape in section. As shown in FIG.
- the mounting element 7 in the V-shaped recess 17 the mounting element 7 can be received in the assembled state, so that it does not come between the thread area 6 of the fastening element and the weight area 13 of the hole in the motoclock. This prevents the biocking element 7 from coming into the motor block between the two threads when screwing in the 3 m fastening element 2 m and thus screwing in is blocked.
- the blocking element In the disassembled state of the vibration pickup, the blocking element is preferably moved through the switching area 6 provided with gsmwd, so that the pivoting member 1 can be made adjustable by the vibration pickup 1.
- the present invention thus relates to a vibration sensor for indirect or direct attachment to a component 12 having vibrations.
- the vibration sensor has a housing S and a pressure sleeve 9 provided with a bore 10.
- An annular Biockiereminent 7 is provided, which a shaft area 4 of a loading F ⁇ st Trents ⁇ lements 2 is arranged.
- a recess 14 is formed and / or a recess is formed on a transition area between the pressure sleeve S and the component 12 which has vibrations, which serves to receive the blocking element 7.
- the fastening element 2 can be held captively on the vibration sensor 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02716633A EP1377808A1 (de) | 2001-03-30 | 2002-03-05 | Schwingungsaufnehmer mit unverlierbarem befestigungsmittel |
| JP2002577526A JP2004518892A (ja) | 2001-03-30 | 2002-03-05 | 紛失不能な固定手段を備えた振動吸収体 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001115944 DE10115944C1 (de) | 2001-03-30 | 2001-03-30 | Schwingungsaufnehmer mit unverlierbarem Befestigungsmittel |
| DE10115944.7 | 2001-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002079745A1 true WO2002079745A1 (de) | 2002-10-10 |
Family
ID=7679787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2002/000800 Ceased WO2002079745A1 (de) | 2001-03-30 | 2002-03-05 | Schwingungsaufnehmer mit unverlierbarem befestigungsmittel |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1377808A1 (de) |
| JP (1) | JP2004518892A (de) |
| DE (1) | DE10115944C1 (de) |
| WO (1) | WO2002079745A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021151930A1 (fr) * | 2020-01-31 | 2021-08-05 | Vitesco Technologies GmbH | Dispositif de controle de vibrations avec element de retention a anneau elastique |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3047801B1 (fr) * | 2016-02-12 | 2018-02-16 | Continental Automotive France | Procede de formation d'une entretoise imperdable logee dans une embase de capteur accelerometre et capteur muni d'une telle embase |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19727704A1 (de) * | 1997-06-30 | 1999-01-07 | Bosch Gmbh Robert | Schwingungsaufnehmer mit Druckhülse |
| DE10044482A1 (de) * | 2000-09-08 | 2001-07-19 | Bosch Gmbh Robert | Schwingungsaufnehmer mit unverlierbarem Befestigungsmittel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE271719C (de) * | ||||
| US1027604A (en) * | 1911-06-24 | 1912-05-28 | Frank W Oman | Nut-lock. |
| DE553123C (de) * | 1931-07-31 | 1932-06-24 | Securitasschraube G M B H | Schraubensicherung |
| DE2151932A1 (de) * | 1971-10-19 | 1973-04-26 | Zahnradfabrik Friedrichshafen | Schraubensicherung |
| US5967722A (en) * | 1998-04-08 | 1999-10-19 | Dana Corporation | Locking washer arrangement |
-
2001
- 2001-03-30 DE DE2001115944 patent/DE10115944C1/de not_active Expired - Fee Related
-
2002
- 2002-03-05 EP EP02716633A patent/EP1377808A1/de not_active Withdrawn
- 2002-03-05 JP JP2002577526A patent/JP2004518892A/ja active Pending
- 2002-03-05 WO PCT/DE2002/000800 patent/WO2002079745A1/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19727704A1 (de) * | 1997-06-30 | 1999-01-07 | Bosch Gmbh Robert | Schwingungsaufnehmer mit Druckhülse |
| DE10044482A1 (de) * | 2000-09-08 | 2001-07-19 | Bosch Gmbh Robert | Schwingungsaufnehmer mit unverlierbarem Befestigungsmittel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021151930A1 (fr) * | 2020-01-31 | 2021-08-05 | Vitesco Technologies GmbH | Dispositif de controle de vibrations avec element de retention a anneau elastique |
| FR3106895A1 (fr) * | 2020-01-31 | 2021-08-06 | Vitesco Technologies | Dispositif de contrôle de vibrations avec élément de rétention à anneau élastique |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004518892A (ja) | 2004-06-24 |
| DE10115944C1 (de) | 2002-11-14 |
| EP1377808A1 (de) | 2004-01-07 |
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