DE10348140A1 - Polygonal rotor for radial piston pump for common-rail fuel injection system of automobile internal combustion engine has sliding surfaces for working pistons provided with ductile material surface coating - Google Patents

Polygonal rotor for radial piston pump for common-rail fuel injection system of automobile internal combustion engine has sliding surfaces for working pistons provided with ductile material surface coating Download PDF

Info

Publication number
DE10348140A1
DE10348140A1 DE2003148140 DE10348140A DE10348140A1 DE 10348140 A1 DE10348140 A1 DE 10348140A1 DE 2003148140 DE2003148140 DE 2003148140 DE 10348140 A DE10348140 A DE 10348140A DE 10348140 A1 DE10348140 A1 DE 10348140A1
Authority
DE
Germany
Prior art keywords
piston pump
radial piston
surface coating
sliding surfaces
ductile material
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.)
Withdrawn
Application number
DE2003148140
Other languages
German (de)
Inventor
Wolf Boll
Joachim Mueller
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to DE2003148140 priority Critical patent/DE10348140A1/en
Publication of DE10348140A1 publication Critical patent/DE10348140A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0403—Refractory metals, e.g. V, W
    • F05C2201/0409—Molybdenum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F05C2203/0804—Non-oxide ceramics
    • F05C2203/0813—Carbides
    • F05C2203/0826—Carbides of wolfram, e.g. tungsten carbide

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The polygonal rotor (8) has sliding surfaces (10,12) for the operating pistons (16) of the radial piston pump, at least one of which has a surface coating (32) of a ductile material over part or all of its surface. The ductile material may have an elasticity module which is less than that of the material of the polygonal rotor. An independent claim for a manufacturing method for a polygonal rotor for a radial piston pump is also included.
DE2003148140 2003-10-16 2003-10-16 Polygonal rotor for radial piston pump for common-rail fuel injection system of automobile internal combustion engine has sliding surfaces for working pistons provided with ductile material surface coating Withdrawn DE10348140A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003148140 DE10348140A1 (en) 2003-10-16 2003-10-16 Polygonal rotor for radial piston pump for common-rail fuel injection system of automobile internal combustion engine has sliding surfaces for working pistons provided with ductile material surface coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003148140 DE10348140A1 (en) 2003-10-16 2003-10-16 Polygonal rotor for radial piston pump for common-rail fuel injection system of automobile internal combustion engine has sliding surfaces for working pistons provided with ductile material surface coating

Publications (1)

Publication Number Publication Date
DE10348140A1 true DE10348140A1 (en) 2005-05-12

Family

ID=34428440

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003148140 Withdrawn DE10348140A1 (en) 2003-10-16 2003-10-16 Polygonal rotor for radial piston pump for common-rail fuel injection system of automobile internal combustion engine has sliding surfaces for working pistons provided with ductile material surface coating

Country Status (1)

Country Link
DE (1) DE10348140A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042295A1 (en) 2010-10-12 2012-04-12 Robert Bosch Gmbh High pressure pump and engine for a high pressure pump
CN103339376B (en) * 2010-10-12 2016-11-30 罗伯特·博世有限公司 High-pressure pump and the drive mechanism for high-pressure pump
US11879455B2 (en) 2021-07-16 2024-01-23 Denso Corporation Supply pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042295A1 (en) 2010-10-12 2012-04-12 Robert Bosch Gmbh High pressure pump and engine for a high pressure pump
WO2012048984A1 (en) 2010-10-12 2012-04-19 Robert Bosch Gmbh High-pressure pump and drive for a high-pressure pump
CN103339376A (en) * 2010-10-12 2013-10-02 罗伯特·博世有限公司 High-pressure pump and drive for a high-pressure pump
CN103339376B (en) * 2010-10-12 2016-11-30 罗伯特·博世有限公司 High-pressure pump and the drive mechanism for high-pressure pump
US11879455B2 (en) 2021-07-16 2024-01-23 Denso Corporation Supply pump

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE

8127 New person/name/address of the applicant

Owner name: DAIMLER AG, 70327 STUTTGART, DE

8130 Withdrawal