GB1390741A - Axial flow device or unit for pumping or marine propulsion - Google Patents

Axial flow device or unit for pumping or marine propulsion

Info

Publication number
GB1390741A
GB1390741A GB1182073A GB1182073A GB1390741A GB 1390741 A GB1390741 A GB 1390741A GB 1182073 A GB1182073 A GB 1182073A GB 1182073 A GB1182073 A GB 1182073A GB 1390741 A GB1390741 A GB 1390741A
Authority
GB
United Kingdom
Prior art keywords
rotor
blade
pumping
wall surface
inside wall
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
GB1182073A
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.)
Tec Group Inc
TEC GROUP
Original Assignee
Tec Group Inc
TEC GROUP
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 Tec Group Inc, TEC GROUP filed Critical Tec Group Inc
Publication of GB1390741A publication Critical patent/GB1390741A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1390741 Propelling ships TEC GROUP Inc 12 March 1973 [20 March 1972] 11820/73 Heading B7V [Also in Division F1] An axial-flow device or unit for pumping or marine propulsion comprises a hollow rotor supported on a housing and having inlet and outlet ends with a flow passageway between, and a blade mounted on and projecting radially inwardly from an inside wall surface of the rotor, the blade having a cutting edge extending between its upstream and downstream ends and disposed at a radial distance from the inside wall surface which increases progressively from the inlet towards the outlet of the rotor, the projection of the blade in a plane normal to the longitudinal axis of the rotor defining a concave blade profile wherein the blade edge from its downstream end towards its upstream end is curved inwardly towards the inside wall surface. The pump shown, for pumping liquids, gases, solids or mixtures or solutions thereof, comprises a cylindrical rotor 12 journalled within a casing 16 and driven from a shaft 18 via a pinion and an external ring gear mounted on the outside wall of the rotor. Impeller blades 14 are of helical shape, with a radial depth which progressively increases from the inlet end 14a to the outlet end 14b. To avoid clogging by solid materials, the blades 14 have a negative overlap when viewed in axial direction and an axially unobstructed central passage is afforded radially within the apices 26 of the blades. Knife' attachments 28 extending along the length of each blade provide cutting edges 24 for chopping up solid matter such as seaweed. The direction of rotation may be reversed for cleaning.
GB1182073A 1972-03-20 1973-03-12 Axial flow device or unit for pumping or marine propulsion Expired GB1390741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23626372A 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
GB1390741A true GB1390741A (en) 1975-04-16

Family

ID=22888795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1182073A Expired GB1390741A (en) 1972-03-20 1973-03-12 Axial flow device or unit for pumping or marine propulsion

Country Status (5)

Country Link
US (1) US3786996A (en)
DE (1) DE2313403A1 (en)
FR (1) FR2177400A5 (en)
GB (1) GB1390741A (en)
IT (1) IT981970B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5368438A (en) * 1993-06-28 1994-11-29 Baxter International Inc. Blood pump
CN104976131A (en) * 2015-04-23 2015-10-14 李德生 Externally-driven barrier-free screw pump equipment
CN105041666A (en) * 2015-04-23 2015-11-11 李德生 External drive high-efficiency turbine pump device
CN112806872A (en) * 2019-11-18 2021-05-18 汉美驰品牌有限公司 Agitator for agitator having blades with continuous surfaces

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976252A (en) * 1975-07-28 1976-08-24 The General Tire & Rubber Company Chopping machine
US4347032A (en) * 1977-12-08 1982-08-31 Possell Clarence R Method for pumping slurry and apparatus for use therewith
US4347033A (en) * 1980-02-19 1982-08-31 Possell Clarence R Concrete pump and method of using same
CH665006A5 (en) * 1983-04-28 1988-04-15 Schneider Hans Ulrich PUMP.
US4778336A (en) * 1987-07-09 1988-10-18 Weil Pump Company Cutter pump subassembly
US5084189A (en) * 1990-09-21 1992-01-28 Richter Systems, Inc. Method and apparatus for separating fluids having different specific gravities
DE19503266C2 (en) * 1995-02-02 2003-06-18 Suma Sondermaschinen Gmbh Shredding device for installation in pipelines
US6250071B1 (en) 1999-08-27 2001-06-26 Schmoll & Halquiss Housing for a disk propulsion system and a method of using the same
US6578294B2 (en) 2001-02-02 2003-06-17 Esco Corporation Dredge cutterhead
US6511374B2 (en) 2001-02-02 2003-01-28 Case Corporation Hub and blade assembly for an agricultural combine residue handling system
US7297053B2 (en) * 2004-07-16 2007-11-20 Cnh America Llc Rotary crop residue chopper apparatus with stiffener having air flow generating capability and method of making the same
GB0424697D0 (en) * 2004-11-09 2004-12-08 Woodford Peter Propeller design
DE102010042513A1 (en) * 2010-10-15 2012-04-19 BSH Bosch und Siemens Hausgeräte GmbH Pump for a household appliance, household appliance with a pump and method for operating a domestic appliance
DE102011077545A1 (en) 2011-06-15 2012-12-20 Ksb Aktiengesellschaft Centrifugal pump with integrated cutting unit
DE102011077544A1 (en) 2011-06-15 2012-12-20 Ksb Aktiengesellschaft Grinder pump
DE102012001107A1 (en) * 2012-01-23 2013-07-25 Tu Darmstadt Hydroelectric power plant with fish-driven impeller
WO2018204821A2 (en) * 2017-05-05 2018-11-08 Schlumberger Technology Corporation Apparatus for separating solids, liquids and gases with integral drive motor having a hollow motor shaft defining an impeller drum
US10778064B1 (en) 2017-05-05 2020-09-15 Schlumberger Technology Corporation Magnetic bearing apparatus for separting solids, liquids and gases having different specific gravities with enhanced solids separation means
CN108506221B (en) * 2018-05-04 2023-08-25 解树超 Sewage pump capable of cleaning and blocking in full-lift range

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1326730A (en) * 1919-12-30 Shaetless propeller
US456352A (en) * 1891-07-21 Charles boecker
US1916192A (en) * 1931-05-23 1933-07-04 David Alexandre Anctil Agitating and disintegrating device
US2997015A (en) * 1960-07-25 1961-08-22 Harvey E Richter Marine propulsion device
US3168255A (en) * 1962-07-06 1965-02-02 Paul M Bellows Agitator for liquid manure storage tanks
US3276382A (en) * 1964-03-05 1966-10-04 Harvey E Richter Fluid flow device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5368438A (en) * 1993-06-28 1994-11-29 Baxter International Inc. Blood pump
CN104976131A (en) * 2015-04-23 2015-10-14 李德生 Externally-driven barrier-free screw pump equipment
CN105041666A (en) * 2015-04-23 2015-11-11 李德生 External drive high-efficiency turbine pump device
CN112806872A (en) * 2019-11-18 2021-05-18 汉美驰品牌有限公司 Agitator for agitator having blades with continuous surfaces

Also Published As

Publication number Publication date
US3786996A (en) 1974-01-22
DE2313403A1 (en) 1973-10-04
IT981970B (en) 1974-10-10
FR2177400A5 (en) 1973-11-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee