EP0686233A1 - Hubkolbenmotor - Google Patents
HubkolbenmotorInfo
- Publication number
- EP0686233A1 EP0686233A1 EP94909017A EP94909017A EP0686233A1 EP 0686233 A1 EP0686233 A1 EP 0686233A1 EP 94909017 A EP94909017 A EP 94909017A EP 94909017 A EP94909017 A EP 94909017A EP 0686233 A1 EP0686233 A1 EP 0686233A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- measuring
- filter
- reciprocating engine
- line
- engine 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.)
- Granted
Links
- 238000012423 maintenance Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract 3
- 230000010349 pulsation Effects 0.000 description 5
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
- F02M35/09—Clogging indicators ; Diagnosis or testing of air cleaners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Definitions
- the invention relates to a reciprocating piston engine, in particular a single-cylinder diesel engine with an air filter in the intake line, for whose maintenance a pressure measuring device is provided downstream of the filter insert in the direction of flow.
- a measuring hole which leads to a vacuum indicator, is arranged in the flow shadow of a tongue which extends from the bottom of the filter housing.
- This tongue shields the mouth of the measuring bore with the aim that the vacuum values occurring in the measuring bore correspond to the actual degree of clogging of the filter insert.
- the action of the tongue is insufficient.
- the present invention has for its object a maintenance indicator in a reciprocating piston engine of the type mentioned to be provided for air filters which, even under the influence of strong pressure pulsations, react specifically to vacuum peaks, so that the timely replacement of the filter insert is guaranteed.
- Commercial pressure gauges or maintenance indicators should continue to be used.
- the solution according to the proposal of the invention consists in that a check valve is provided at the measuring point or in the measuring line between the measuring point and the measuring device, which is designed in accordance with the sensitivity of the measuring device, preferably biased; the check valve can be of different designs, e.g. in the form of a preferably elastic leaflet or a spring-loaded ball as the valve body.
- Such a check valve results in a sufficiently accurate pressure display in the form of a smoothed course of the vacuum peaks, it being possible to use commercially available maintenance indicators.
- the registered vacuum values must first have the selected pretension of the check valve overcome before they can be displayed. This always results in clear signal values, to which the corresponding pressure measuring devices react with a clear display, even when the air flow, as with the single-cylinder diesel engine, is subject to strong pulsations.
- the check valve only allows the vacuum peaks to pass, so that a clear maintenance display and thus a consumption-based exchange of the filter insert is possible.
- a particularly preferred embodiment consists in that the measuring point is formed by the opening of the measuring line in the filter housing, and in the inside of the filter housing a measuring plate covering the opening is arranged, which depending on the negative pressure in the filter housing either closes the opening or releases.
- the measuring blade is expediently biased slightly elastically against the mouth opening, and even a slight arching of the blade, which is present due to the manufacturing process, can be used.
- the measuring blade preferably consists of a rubber-like material.
- Such a measuring sheet has the advantage that it causes automatic ventilation of the measuring line, so that the Resetting of the measuring device is ensured by actuating a reset button that is usually present after a filter replacement.
- a bypass line is additionally provided which connects the filter housing to the measuring line and which is closed during operation by the filter insert, preferably by its sealing lip. If the filter insert is changed, the measuring line is automatically aerated. The connection point of the bypass line with the measuring line between the check valve and the pressure measuring device is of course located.
- 1 is a maintenance indicator with a lamellar check valve in the filter housing
- Fig. La is a view of the measuring sheet according to FIG. 1 and 2 shows a maintenance indicator with a check valve in the measuring line.
- the air filter 1 and 2 each show an air filter 1 on a single-cylinder diesel engine 2, which are connected to one another via an intake line 3.
- the air filter 1 consists of a filter housing 4 with a supply air line 5 and a removable cover 6 for the exchange of the dirty filter insert 7, shown in the form of an annular dry air filter insert.
- the arrows indicate the flow directions in the individual lines, the exhaust line 8 also being drawn by the cylinder 9 of the engine 2.
- the inlet valve 10 and the outlet valve 11 are also shown schematically.
- Filter housing 4 is connected to a measuring line 12 which leads to a pressure measuring device 13.
- a bypass line 14 ensures that the measuring line 12 is ventilated when the filter insert 7 is replaced. While the engine is operating or as long as the filter insert is in place in the filter housing, the bypass line 14 is closed by the filter insert itself, e.g. by the filter insert 7 having a sealing ring surface 15 at the level of the connection point of the bypass line 14.
- a non-return valve serves as a silicon leaflet 16, which is fastened in the interior of the filter housing 4 in front of the mouth of the measuring line 12 by means of screws 17 (cf. FIG. 1 a).
- the sheet 16 is raised slightly from the mouth of the measuring line 12 during operation by the vacuum peaks that occur, so that only the responsible value of the Vacuum is displayed in the pressure measuring device 13.
- the leaflet 16 has the effect that the negative pressure peaks are converted into a smoothed signal value, which can be clearly indicated by the pressure measuring device 13.
- the pressure measuring device can be set so that its indicator starts to release a red field from -200 mm water column (WS) for the replacement of the filter insert, which extends up to -350 mm WS.
- the maintenance indicator is usually mechanically engaged, which makes it necessary to actuate a reset button when changing the filter.
- a bypass line 14 is used to ventilate the measuring line 12, which ensures that the negative pressure present in the measuring line and in the pressure measuring device is reduced when the filter is changed and the maintenance display (red field) is reset after the reset button is pressed.
- a conventional check valve 18 is provided with a resiliently preloaded spherical valve body, which is lifted from its seat only when a certain negative pressure is reached and which enables a display in the pressure measuring device 13.
- the check valve should preferably be set so that an indication of the vacuum peak begins at around -200 mm WS; this corresponds to an average pressure in the air filter of approx. - 100 mm WS, whereby the average pressure for a new filter insert is approximately -50 mm WS.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4305484 | 1993-02-23 | ||
| DE4305484A DE4305484C2 (de) | 1993-02-23 | 1993-02-23 | Hubkolbenmotor |
| PCT/EP1994/000500 WO1994019595A1 (de) | 1993-02-23 | 1994-02-22 | Hubkolbenmotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0686233A1 true EP0686233A1 (de) | 1995-12-13 |
| EP0686233B1 EP0686233B1 (de) | 1997-10-15 |
Family
ID=6481097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94909017A Expired - Lifetime EP0686233B1 (de) | 1993-02-23 | 1994-02-22 | Hubkolbenmotor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5562076A (de) |
| EP (1) | EP0686233B1 (de) |
| JP (1) | JPH08511317A (de) |
| AU (1) | AU6204294A (de) |
| DE (2) | DE4305484C2 (de) |
| WO (1) | WO1994019595A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4305484C2 (de) * | 1993-02-23 | 1994-12-08 | Hatz Motoren | Hubkolbenmotor |
| GB9525370D0 (en) * | 1995-12-12 | 1996-02-14 | Lucas Ind Plc | Flow sensor and fuel control system |
| US5839402A (en) * | 1997-07-29 | 1998-11-24 | Fuji Oozx Inc. | Wear resistant tappet |
| RU2177072C1 (ru) * | 2000-04-27 | 2001-12-20 | Общевойсковая академия Вооруженных Сил РФ | Устройство для защиты танкового двигателя от пылевого износа |
| DE10147624B4 (de) * | 2001-09-27 | 2012-07-19 | Volkswagen Ag | Abgaskühlvorrichtung für eine Brennkraftmaschine |
| US7032573B2 (en) * | 2004-04-23 | 2006-04-25 | Ford Global Technologies, Llc | Method and apparatus for indicating air filter maintenance is required |
| DE202013101812U1 (de) * | 2013-04-26 | 2014-08-06 | Makita Corporation | Luftfilterzustandsmessvorrichtung |
| CN110425062B (zh) * | 2019-06-22 | 2021-10-22 | 无锡奥润汽车技术有限公司 | 一种汽车空气滤清器 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7235481U (de) * | 1973-05-30 | Filterwerk Mann & Hummel Gmbh | Luftfilter fur Brennkraftmaschinen, Kompressoren und sonstige luftansaugende Maschinen | |
| DE1203045B (de) * | 1963-07-27 | 1965-10-14 | Mann & Hummel Filter | Anzeigevorrichtung fuer den Verschmutzungs-grad des Filtereinsatzes eines Ansaugfilters, insbesondere fuer Brennkraftmaschinen |
| ES350712A1 (es) * | 1967-02-23 | 1969-05-01 | Massey Ferguson Services Nv | Un indicador de revision para purificadores de aire. |
| DE2617972A1 (de) * | 1976-04-24 | 1977-11-10 | Mann & Hummel Filter | Anzeigevorrichtung fuer den verschmutzungsgrad von ansaugluftfiltern |
| DE3130624A1 (de) * | 1981-08-01 | 1983-02-17 | Robert Bosch Gmbh, 7000 Stuttgart | Luftmassenmessvorrichtung |
| DE3417050A1 (de) * | 1984-05-09 | 1985-11-14 | Robert Bosch Gmbh, 7000 Stuttgart | Vorrichtung zur abschirmung und zum fernhalten von luftsaeulenschwingungen von einem im ansaugrohr einer brennkraftmaschine angeordneten luftmassenmesser |
| JPS63243429A (ja) * | 1987-03-30 | 1988-10-11 | Mazda Motor Corp | エンジンの吸入空気量検出装置 |
| JP2513230B2 (ja) * | 1987-05-25 | 1996-07-03 | 日本電装株式会社 | 内燃機関のエアクリ−ナの目詰り検出装置 |
| JP2513235B2 (ja) * | 1987-06-19 | 1996-07-03 | 日本電装株式会社 | 内燃機関用エアクリ−ナの目詰り検出装置 |
| JP2621264B2 (ja) * | 1987-12-18 | 1997-06-18 | 株式会社デンソー | ▲ろ▼過エレメントの目詰り検出装置 |
| JP2517526Y2 (ja) * | 1988-05-23 | 1996-11-20 | スズキ株式会社 | 車両用エアクリーナ |
| JPH0367040A (ja) * | 1989-08-05 | 1991-03-22 | Mitsubishi Motors Corp | エンジンの吸入空気量制御装置 |
| DE4305484C2 (de) * | 1993-02-23 | 1994-12-08 | Hatz Motoren | Hubkolbenmotor |
| US5369990A (en) * | 1993-04-08 | 1994-12-06 | Ford Motor Company | Remote mount air flow sensor |
-
1993
- 1993-02-23 DE DE4305484A patent/DE4305484C2/de not_active Expired - Fee Related
-
1994
- 1994-02-22 DE DE59404350T patent/DE59404350D1/de not_active Expired - Fee Related
- 1994-02-22 AU AU62042/94A patent/AU6204294A/en not_active Abandoned
- 1994-02-22 WO PCT/EP1994/000500 patent/WO1994019595A1/de not_active Ceased
- 1994-02-22 EP EP94909017A patent/EP0686233B1/de not_active Expired - Lifetime
- 1994-02-22 JP JP6518658A patent/JPH08511317A/ja active Pending
-
1995
- 1995-08-23 US US08/531,691 patent/US5562076A/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9419595A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0686233B1 (de) | 1997-10-15 |
| US5562076A (en) | 1996-10-08 |
| JPH08511317A (ja) | 1996-11-26 |
| DE59404350D1 (de) | 1997-11-20 |
| DE4305484A1 (de) | 1994-09-01 |
| AU6204294A (en) | 1994-09-14 |
| DE4305484C2 (de) | 1994-12-08 |
| WO1994019595A1 (de) | 1994-09-01 |
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