GB604305A - Improvements in or relating to reciprocating pumps - Google Patents

Improvements in or relating to reciprocating pumps

Info

Publication number
GB604305A
GB604305A GB20287/45A GB2028745A GB604305A GB 604305 A GB604305 A GB 604305A GB 20287/45 A GB20287/45 A GB 20287/45A GB 2028745 A GB2028745 A GB 2028745A GB 604305 A GB604305 A GB 604305A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
groove
helical
aug
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
GB20287/45A
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.)
Bendix Aviation Corp
Original Assignee
Bendix Aviation Corp
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 Bendix Aviation Corp filed Critical Bendix Aviation Corp
Publication of GB604305A publication Critical patent/GB604305A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/442—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means preventing fuel leakage around pump plunger, e.g. fluid barriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • F02M59/265—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders characterised by the arrangement or form of spill port of spill contour on the piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

604,305. Removing oil-leakage from pistons. BENDIX AVIATION CORPORATION. Aug. 8, 1945, No. 20287. Convention date, Aug. 17, 1944. [Class 122 (i)] [Also in Group XXVIII] In an injection pump comprising a cylinder 7, Fig. 1, and a piston 13 formed with a helical timing groove 16, an annular groove 44 is formed in the piston below the lowest part of the helical groove 16 and adapted to be connected by a.passage 45, Fig. 3, to a low pressure chamber 43 outside the cylinder 7. The chamber 43 communicates with the inlet to the pump to return thereto oil which leaks between the piston and cylinder and escapes along the passage 45 which is arranged at about 90 degrees to the inlet and byepass ports of the cylinder and entirely out of contact with the helical groove 16.
GB20287/45A 1944-08-17 1945-08-08 Improvements in or relating to reciprocating pumps Expired GB604305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US604305XA 1944-08-17 1944-08-17

Publications (1)

Publication Number Publication Date
GB604305A true GB604305A (en) 1948-07-01

Family

ID=22029428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20287/45A Expired GB604305A (en) 1944-08-17 1945-08-08 Improvements in or relating to reciprocating pumps

Country Status (1)

Country Link
GB (1) GB604305A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2163176A5 (en) * 1971-11-30 1973-07-20 Bryce Berger Ltd
WO1987005665A1 (en) * 1986-03-22 1987-09-24 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
EP0534771A1 (en) * 1991-09-27 1993-03-31 Zexel Corporation Fuel injection pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2163176A5 (en) * 1971-11-30 1973-07-20 Bryce Berger Ltd
WO1987005665A1 (en) * 1986-03-22 1987-09-24 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
US4830587A (en) * 1986-03-22 1989-05-16 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
EP0534771A1 (en) * 1991-09-27 1993-03-31 Zexel Corporation Fuel injection pump
US5230615A (en) * 1991-09-27 1993-07-27 Zexel Corporation Fuel injection pump having oil temporarily-storing groove

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