EP1218640B1 - Hochdruckreinigungsgerät - Google Patents
Hochdruckreinigungsgerät Download PDFInfo
- Publication number
- EP1218640B1 EP1218640B1 EP00967843A EP00967843A EP1218640B1 EP 1218640 B1 EP1218640 B1 EP 1218640B1 EP 00967843 A EP00967843 A EP 00967843A EP 00967843 A EP00967843 A EP 00967843A EP 1218640 B1 EP1218640 B1 EP 1218640B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal gear
- cleaning device
- pressure cleaning
- high pressure
- steel alloy
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/027—Pump details
Definitions
- the invention relates to a high-pressure cleaning device a motor with an internal gear pump driven by the motor to convey a cleaning liquid under high pressure to a discharge device.
- Such a high-pressure cleaning device is, for example known from DE 197 26 794.
- the pump parts must therefore place high demands on the Meet corrosion resistance.
- For internal gear pumps are also high tooth strength and high strength required on the sealing surfaces.
- the object and the aim of the invention are for high-pressure cleaning devices of the type described above Type with internal gear pumps a material for the gears to find the of the above requirements in terms of corrosion resistance and hardness.
- This object is achieved in that with a high-pressure cleaning device with an engine, with one of those Motor driven internal gear pump for promotion a cleaning liquid under high pressure to a Discharge device the internal gear and / or the external gear Made of a chromium steel alloy containing molybdenum with a nitrogen content of 0.1 - 1%.
- chrome steel alloys is even better with a nitrogen content of 0.3 - 1%.
- the number of process steps for manufacturing the internal gears and / or the external gears is special low if this is exclusively from the invention Alloy. In this case there are no coatings on the sealing surfaces and / or similar processes required.
- the drive motor can be an electric motor or an internal combustion engine his.
- a pump is driven by the motor Cleaning liquid from the liquid inlet on the suction side 2 of the high-pressure cleaning device for the pressure side Pumps liquid outlet 3 of the internal gear pump.
- High-pressure hose 4 connected to the discharge device 5.
- the internal gear pump can be a fill-less internal gear pump 6, in Figure 2 is the internal gear shown, the tips of which are not shown Tooth heads of the externally toothed internal gear are located at the level of line 7, while the floors the spaces between the teeth of the internal gear external gear are on line 8.
- the internal gear pump can be of the gerotor type with the drive shaft 9 driven internal gear and fixed Be external gear.
- the internal gear pump can also be used as a Orbit pump can be designed with the drive shaft 9 driven internal gear and fixed external gear. With an orbital pump, the internal gear moves in a planetary motion around the axis of rotation of the Outdoor gear. It is with such internal gear pumps also known, resulting wear from relative movements the sealing surfaces of the gears perpendicular to their Axes of rotation and thus approximation of the same to each other compensate.
- the internal gear is rotatable about the axis of rotation 9 stored.
- an internal gear and external gear of the internal gear pump according to the invention 6 made of a chrome steel alloy with a Chromium content of approx. 15%, a nitrogen content of approx. 0.4% and a molybdenum content of approx. 0.4%.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Mechanical Sealing (AREA)
- Centrifugal Separators (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19948860 | 1999-10-08 | ||
DE19948860A DE19948860A1 (de) | 1999-10-08 | 1999-10-08 | Hochdruckreinigungsgerät |
PCT/EP2000/009819 WO2001027476A1 (de) | 1999-10-08 | 2000-10-06 | Hochdruckreinigungsgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1218640A1 EP1218640A1 (de) | 2002-07-03 |
EP1218640B1 true EP1218640B1 (de) | 2003-01-15 |
Family
ID=7925185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00967843A Expired - Lifetime EP1218640B1 (de) | 1999-10-08 | 2000-10-06 | Hochdruckreinigungsgerät |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1218640B1 (es) |
CN (1) | CN1215259C (es) |
AT (1) | ATE231219T1 (es) |
AU (1) | AU7786200A (es) |
DE (2) | DE19948860A1 (es) |
DK (1) | DK1218640T3 (es) |
ES (1) | ES2189769T3 (es) |
WO (1) | WO2001027476A1 (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7556210B2 (en) * | 2006-05-11 | 2009-07-07 | S. C. Johnson & Son, Inc. | Self-contained multi-sprayer |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1270122A (en) * | 1969-03-06 | 1972-04-12 | Plessey Co Ltd | Improvements in or relating to gear pumps |
JPS5837162A (ja) * | 1981-08-31 | 1983-03-04 | Toshiba Corp | ポンプおよびその製造方法 |
JPH01246343A (ja) * | 1988-03-25 | 1989-10-02 | Daido Steel Co Ltd | ステンレス鋼 |
JPH06336652A (ja) * | 1993-05-27 | 1994-12-06 | Agency Of Ind Science & Technol | 原子力発電所海水ポンプ用ステンレス鍛鋼 |
JPH09195004A (ja) * | 1995-11-10 | 1997-07-29 | Mitsubishi Heavy Ind Ltd | ステンレス鋼 |
DE19726794A1 (de) | 1997-06-24 | 1999-01-07 | Elektra Beckum Ag | Wasser-Hochdruckreinigungsgerät |
JPH1180911A (ja) * | 1997-09-11 | 1999-03-26 | Nippon Steel Corp | ポンプインペラ用高純クロム鋼板 |
-
1999
- 1999-10-08 DE DE19948860A patent/DE19948860A1/de not_active Withdrawn
-
2000
- 2000-10-06 CN CNB008139121A patent/CN1215259C/zh not_active Expired - Fee Related
- 2000-10-06 WO PCT/EP2000/009819 patent/WO2001027476A1/de active IP Right Grant
- 2000-10-06 AU AU77862/00A patent/AU7786200A/en not_active Abandoned
- 2000-10-06 ES ES00967843T patent/ES2189769T3/es not_active Expired - Lifetime
- 2000-10-06 AT AT00967843T patent/ATE231219T1/de not_active IP Right Cessation
- 2000-10-06 EP EP00967843A patent/EP1218640B1/de not_active Expired - Lifetime
- 2000-10-06 DE DE50001121T patent/DE50001121D1/de not_active Expired - Fee Related
- 2000-10-06 DK DK00967843T patent/DK1218640T3/da active
Also Published As
Publication number | Publication date |
---|---|
CN1378621A (zh) | 2002-11-06 |
CN1215259C (zh) | 2005-08-17 |
DE19948860A1 (de) | 2001-04-12 |
ES2189769T3 (es) | 2003-07-16 |
EP1218640A1 (de) | 2002-07-03 |
WO2001027476A1 (de) | 2001-04-19 |
ATE231219T1 (de) | 2003-02-15 |
DE50001121D1 (de) | 2003-02-20 |
DK1218640T3 (da) | 2003-02-24 |
AU7786200A (en) | 2001-04-23 |
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