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GB1417933A - Piston pumps and valve assemblies therefor - Google Patents

Piston pumps and valve assemblies therefor

Info

Publication number
GB1417933A
GB1417933A GB1679274A GB1679274A GB1417933A GB 1417933 A GB1417933 A GB 1417933A GB 1679274 A GB1679274 A GB 1679274A GB 1679274 A GB1679274 A GB 1679274A GB 1417933 A GB1417933 A GB 1417933A
Authority
GB
United Kingdom
Prior art keywords
pump
valve plates
outlet
posts
ports
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
Application number
GB1679274A
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.)
ZF Friedrichshafen AG
Original Assignee
Fichtel and Sachs 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 Fichtel and Sachs AG filed Critical Fichtel and Sachs AG
Publication of GB1417933A publication Critical patent/GB1417933A/en
Expired 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • F04B7/045—Two pistons coacting within one cylinder
    • 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
    • F04B1/0452—Distribution members, e.g. valves
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y10T137/7839—Dividing and recombining in a single flow path
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7859—Single head, plural ports in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Check Valves (AREA)

Abstract

1417933 Reciprocating pumps FICHTEL & SACHS AG 17 April 1974 [17 April 1973] 16792/74 Heading F1A A pump comprises a plurality of pistons 5, Fig.1, delivering to an annular outlet channel 4 via ports 6 controlled by a non-return valve assembly 22 comprising arcuate valve plates 7, Fig.7, each controlling a respective port 6 and having recesses 23 at their ends guided on posts 19 secured, e.g. by rivetting or welding, to an annular member 17 which limits the opening movement of the valve plates. Holes 8 are provided for flow through the valve plates 7 when in their open positions. The posts 19 engage in bores in the pump housing and may be of enlarged diameter at their housing ends, Figs.4 and 6 (not shown), so that the valve plates are retained between the enlarged ends and member 17 to facilitate mounting of the valve assembly in the pump. The outlet 9 from channel 4 is located between two of ports 6, the valve assembly either being arranged as shown in Fig.7, with the recesses 23 of two adjacent valve plates defining an opening over outlet 9 and guide posts 19 provided in adjacent holes 8, or as in Figs.8 and 9 (not shown), in which the guide post corresponding to the outlet position is replaced by a hollow slitted bushing (24). The spring-loaded pump pistons 5 are in two axially-spaced banks and engage an eccentric 1 via a ring 27 and a floating bushing 26. The pump cylinders communicate with the pump inlet chamber 10 driving the suction stroke via piston ports 11.
GB1679274A 1973-04-17 1974-04-17 Piston pumps and valve assemblies therefor Expired GB1417933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2319307A DE2319307A1 (en) 1973-04-17 1973-04-17 PRE-ASSEMBLED PRESSURE VALVE FOR PUMPS WITH MORE THAN ONE WORK ACT PER REVOLUTION, IN PARTICULAR FOR AXIAL AND RADIAL PISTON PUMPS

Publications (1)

Publication Number Publication Date
GB1417933A true GB1417933A (en) 1975-12-17

Family

ID=5878331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1679274A Expired GB1417933A (en) 1973-04-17 1974-04-17 Piston pumps and valve assemblies therefor

Country Status (6)

Country Link
US (1) US3885893A (en)
JP (1) JPS5030106A (en)
DE (1) DE2319307A1 (en)
FR (1) FR2226571B3 (en)
GB (1) GB1417933A (en)
IT (1) IT1009464B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2901240C2 (en) * 1979-01-13 1981-10-01 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Radial piston pump
DE3126917C2 (en) * 1981-07-08 1984-06-14 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Radial piston pump
EP0288481B1 (en) * 1986-03-07 1989-12-20 ZF FRIEDRICHSHAFEN Aktiengesellschaft Radial piston pump
JPH0746773Y2 (en) * 1988-02-04 1995-10-25 カヤバ工業株式会社 Radial piston pump
US6575192B1 (en) * 2000-11-03 2003-06-10 Caterpillar Inc Check valve for a prechamber assembly
ITRE20030001U1 (en) * 2003-01-16 2004-07-17 Fulvio Montipo' "WATER PUMP"
CN102392811B (en) * 2011-11-17 2014-04-30 阮坚毅 Automobile air pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125034A (en) * 1964-03-17 Pump with radial cylinders
US2427253A (en) * 1943-09-21 1947-09-09 American Brake Shoe Co Epicyclic drive
FR1104109A (en) * 1954-04-28 1955-11-16 Rech S Etudes Further development of piston fluid pumps or motors

Also Published As

Publication number Publication date
FR2226571A1 (en) 1974-11-15
US3885893A (en) 1975-05-27
JPS5030106A (en) 1975-03-26
FR2226571B3 (en) 1977-03-04
IT1009464B (en) 1976-12-10
DE2319307A1 (en) 1974-11-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee