GB1042778A - Improvements in or relating to reversible gear pumps and motors - Google Patents

Improvements in or relating to reversible gear pumps and motors

Info

Publication number
GB1042778A
GB1042778A GB2394164A GB2394164A GB1042778A GB 1042778 A GB1042778 A GB 1042778A GB 2394164 A GB2394164 A GB 2394164A GB 2394164 A GB2394164 A GB 2394164A GB 1042778 A GB1042778 A GB 1042778A
Authority
GB
United Kingdom
Prior art keywords
chambers
pressure
passages
annular
pinions
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
GB2394164A
Inventor
Edward Joseph William Burch
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.)
B&G Hydraulics Ltd
Original Assignee
B&G Hydraulics Ltd
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 B&G Hydraulics Ltd filed Critical B&G Hydraulics Ltd
Priority to GB2394164A priority Critical patent/GB1042778A/en
Priority to FR19860A priority patent/FR1435701A/en
Priority to DE1965B0082329 priority patent/DE1570070B/en
Publication of GB1042778A publication Critical patent/GB1042778A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • F04C14/265—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels being obtained by displacing a lateral sealing face
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
    • B29C41/28—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on an endless belt
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2201/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as reinforcement
    • B29K2201/08—Cellulose derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/02—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives
    • C08J2301/22—Cellulose xanthate
    • C08J2301/24—Viscose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Moulding By Coating Moulds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Hydraulic Motors (AREA)
  • Rotary Pumps (AREA)

Abstract

1,042,778. Gear pumps and motors. B. & G. HYDRAULICS Ltd. June 9, 1965 [June 9, 1964], No. 23940/64. Heading F1F. A gear motor (or pump) comprises a number of pinions 21, Fig. 1, rotatable on fixed spindles 20 and positioned between a control gear 11 splined to a drive (or driven) shaft 10 and a ring gear 22. The spindles 20 are carried in an annular pressure pad 19, Fig. 2, stepped on its outer and inner peripheries to provide with corresponding steps on a casing part 14 and an annular pad 9 surrounding the shaft 10 annular pressure chambers 29, 30, 29a, 30a communicating through passages in the pressure pad 19 with diagonally disposed inlet ports 37, 38 and diagonally disposed outlet ports 39, 40 opening into chambers in which the pinions rotate. Each spindle 20 is formed with a transverse relief passage 24 and an axial relief passage 25 which opens at one end through a passage, 32 with a chamber 33 surrounding the ring gear 22 and at its other end through passages 26, 34 with chambers 35, 36 surrounding the shaft 10. The passage 26 is connected by cross passages 27, 28 each provided with a pressure relief valve (not shown) with the annular pressure chambers 29, 29a and 30, 30a respectively so that it is relieved into the annular chambers at pressure lower. In operation as a motor, working fluid is supplied to one of the supply passages in the casing part 14 and passes into the annular pressure chambers 30, 30a to press the pad 19 which is freely movable into sealing engagement with the pinions, control and ring gears. Pressure fluid also passes through passages 37a, 38a and inlet ports 37, 38 into the pinion chambers to rotate the pinions which intermesh with the control and ring gears to drive the shaft 10. The pressure fluid afterwards escapes through the outlet ports 39, 40 and passages 39a, 40a to exhaust. The operative surfaces of the annular pressure chambers and the chambers within which the pinions rotate are arranged so that should excess pressure occur within the latter the annular pressure pad will move to allow fluid to escape across the faces of the gear wheels to prevent damage to the motor (or pump).
GB2394164A 1964-06-09 1964-06-09 Improvements in or relating to reversible gear pumps and motors Expired GB1042778A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2394164A GB1042778A (en) 1964-06-09 1964-06-09 Improvements in or relating to reversible gear pumps and motors
FR19860A FR1435701A (en) 1964-06-09 1965-06-08 Process for preparing cellulosic films and films thus obtained
DE1965B0082329 DE1570070B (en) 1964-06-09 1965-06-09 Process for the production of films from regenerated cellulose or hydroxy ethyl cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2394164A GB1042778A (en) 1964-06-09 1964-06-09 Improvements in or relating to reversible gear pumps and motors

Publications (1)

Publication Number Publication Date
GB1042778A true GB1042778A (en) 1966-09-14

Family

ID=10203801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2394164A Expired GB1042778A (en) 1964-06-09 1964-06-09 Improvements in or relating to reversible gear pumps and motors

Country Status (3)

Country Link
DE (1) DE1570070B (en)
FR (1) FR1435701A (en)
GB (1) GB1042778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20100516A1 (en) * 2010-06-15 2011-12-16 Vhit Spa FLUID MACHINE WITH FLOW REGULATION.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20100516A1 (en) * 2010-06-15 2011-12-16 Vhit Spa FLUID MACHINE WITH FLOW REGULATION.
WO2011158167A3 (en) * 2010-06-15 2013-03-28 Vhit S.P.A. Fluidic gear machine with flow rate regulation

Also Published As

Publication number Publication date
DE1570070A1 (en) 1969-04-24
FR1435701A (en) 1966-04-15
DE1570070B (en) 1971-03-25

Similar Documents

Publication Publication Date Title
US3778198A (en) Meshing rotary piston machine with an internal shaft
GB965256A (en) Rotary pump or motor
US2240874A (en) Rotary fluid-pressure machine
US4322988A (en) Fluid braked planetary transmission
GB1532532A (en) Hydraulic rotary device
GB1206524A (en) Hydraulic gear pumps and motors
GB1400108A (en) Hydraulic rotary-piston pump or motor particularly for hydrostatic steering devices in motor vehicles
GB1146913A (en) Rotary fluid pressure devices
US3057161A (en) Hydraulic motor
GB1145723A (en) Rotary fluid pressure devices
GB1042778A (en) Improvements in or relating to reversible gear pumps and motors
GB1005387A (en) Improvements in or relating to hydraulic pumps or motors
FR2232689A1 (en) Distributor for reversible hydraulic motor - has non-return valve at each end to drain rotor end of high press. oil
GB1413249A (en) Gerotortype rotary fluid-pressure machine
GB1235393A (en) Rotary positive-displacement fluid pump or fluid operated motor
US2965075A (en) Hydraulic torque boosters
GB1454407A (en) Control system for multiple motor hydraulic power means
GB1120631A (en) Improvements in or relating to rotary fluid-actuated motors, pumps and power-transmitting apparatus
GB1246307A (en) Improvements in or relating to rotary positive displacement pumps
GB1152188A (en) A Rotary Fluid Pump or Motor
GB465363A (en) Improvements in and relating to rotary motors, pumps and the like
GB1137575A (en) Internally meshing gear pumps and motors
GB1195365A (en) Improvements in and relating to Hydraulic and Pneumatic Gear Pumps or Motors
GB1075333A (en) Improvements in gear pumps or motors of the internally-meshing type
GB1235394A (en) Rotary positive-displacement fluid pump or fluid operated motor