GB775507A - Improvements in or relating to variable ratio power transmission apparatus - Google Patents

Improvements in or relating to variable ratio power transmission apparatus

Info

Publication number
GB775507A
GB775507A GB118755A GB118755A GB775507A GB 775507 A GB775507 A GB 775507A GB 118755 A GB118755 A GB 118755A GB 118755 A GB118755 A GB 118755A GB 775507 A GB775507 A GB 775507A
Authority
GB
United Kingdom
Prior art keywords
ports
power transmission
transmission apparatus
variable ratio
ratio power
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
GB118755A
Inventor
Howard Frederick Hobbs
Anthony Rex Hepburn Allen
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.)
Hobbs Transmission Ltd
Original Assignee
Hobbs Transmission 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 Hobbs Transmission Ltd filed Critical Hobbs Transmission Ltd
Priority to GB118755A priority Critical patent/GB775507A/en
Publication of GB775507A publication Critical patent/GB775507A/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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/008—Reduction of noise or vibration

Abstract

775,507. Gear pumps. HOBBS TRANSMISSION, Ltd. Dec. 16, 1955 [Jan. 14, 1955], No. 1187/55. Class 110 (2). A rotary pump for a variable ratio power transmission apparatus is provided with a suction pipe 13 having a closed end and a series of ports 16, the sum of the cross-sectional areas of which is less than the cross-sectional area of the pipe and such that a minimum pressure drop of at least one pound per square inch exists across the ports. According to the Provisional Specification, the ports may be provided with manual or automatic variable-orifice control means.
GB118755A 1955-01-14 1955-01-14 Improvements in or relating to variable ratio power transmission apparatus Expired GB775507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB118755A GB775507A (en) 1955-01-14 1955-01-14 Improvements in or relating to variable ratio power transmission apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB118755A GB775507A (en) 1955-01-14 1955-01-14 Improvements in or relating to variable ratio power transmission apparatus

Publications (1)

Publication Number Publication Date
GB775507A true GB775507A (en) 1957-05-22

Family

ID=9717681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB118755A Expired GB775507A (en) 1955-01-14 1955-01-14 Improvements in or relating to variable ratio power transmission apparatus

Country Status (1)

Country Link
GB (1) GB775507A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259333A (en) * 1991-09-07 1993-03-10 Teves Gmbh Alfred Gear pump with a delivery rate depending non-linearly on pump speed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259333A (en) * 1991-09-07 1993-03-10 Teves Gmbh Alfred Gear pump with a delivery rate depending non-linearly on pump speed
FR2681105A1 (en) * 1991-09-07 1993-03-12 Teves Gmbh Alfred GEAR PUMP AND USE OF THE SAME AS A LUBRICATING OIL PUMP, IN PARTICULAR FOR A VEHICLE COMBUSTION ENGINE.

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