US3490384A - Liquid fuel injection pumps - Google Patents

Liquid fuel injection pumps Download PDF

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Publication number
US3490384A
US3490384A US743466A US3490384DA US3490384A US 3490384 A US3490384 A US 3490384A US 743466 A US743466 A US 743466A US 3490384D A US3490384D A US 3490384DA US 3490384 A US3490384 A US 3490384A
Authority
US
United States
Prior art keywords
plunger
sleeve
body part
liquid fuel
slit
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 - Lifetime
Application number
US743466A
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English (en)
Inventor
Donald Worby
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.)
Bryce Berger Ltd
Original Assignee
Bryce Berger 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 Bryce Berger Ltd filed Critical Bryce Berger Ltd
Application granted granted Critical
Publication of US3490384A publication Critical patent/US3490384A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M59/48—Assembling; Disassembling; Replacing

Definitions

  • a liquid fuel injection pump including a body part, a pump barrel mounted within the body part and extending therefrom, a sleeve mounted about the exposed portion of the pump barrel and retained axially relative to the body part but angularly movable about the barrel, a slit extending from the end of the sleeve remote from the body part, a pumping plunger mounted within the pump barrel and having a peg engaged within the slits, the sleeve being deformed so as to define ear portions at the open end of the slit whereby the pumping plunger is retained relative to the remaining portion of the pump.
  • This invention relates to liquid fuel injection pumps of the kind comprising a body part, a plunger reciprocably mounted within the body part, a sleeve retained upon the body part at one end thereof and angularly movable thereon about the axis of reciprocation of the plunger, an open ended slit extending from the end of the sleeve remote from the body part and a peg secured to the plunger and engaged within said slit whereby angular movement of the sleeve will impart angular movement to the plunger, the plunger being allowed free axial movement relative to the sleeve.
  • a circlip has been positioned in a groove formed in the internal periphery of the sleeve to provide interference with the peg and thereby to retain the plunger together with the associated parts.
  • the slit is provided with a closed end.
  • the object of the present invention is to provide such a pump in a simple and convenient form.
  • the open end of the slit is partially closed by deforming a portion of the sleeve.
  • the injection pump comprises a body part in which in known manner, is mounted a pump barrel 16 which defines a pump cylinder. From the inner end of the cylin- I der extends an outlet 17 which can be connected to an injection nozzle of an associated internal combustion engine and a non-return delivery valve 18 is provided for controlling the flow of fuel through said outlet.
  • a port 19 Formed in the wall of the cylinder is a port 19 which is in communication with a source of liquid fuel and reciprocably mounted within the cylinder is a plunger 10.
  • the plunger extends from the pump barrel and in known manner dur- "ice ing inward movement of the plunger and when the port 19 is covered by the plunger fuel will flow past the delivery valve 18 to the outlet 17. During the return motion of the plunger as soon as the port is uncovered, fuel will fiow into the pump cylinder ready for delivery to the engine during the next inward stroke of the plunger.
  • a sleeve 11 which is restrained against axial movement relative to the body part by means of a retaining ring 22 but is permitted angular movemenet about the axis of reciprocation of the plunger. Furthermore, the sleeve is provided with a radially extending pin 19a for attachment to a manually or governor operable adjustor whereby the angular setting of the sleeve can be adjusted.
  • the pin 19a extends through an aperture formed in the housing.
  • the exposed end of the plunger is provided with an abutment 20 for a coiled compression spring 21 which acts in a direction to urge the plunger out of the pump cylinder.
  • the sleeve 11 is provided with a slit 12 which extends axially from the end of the sleeve remote from the body part. Located within the slit is a peg 13 which is secured to the plunger 10 whereby angular adjustment of the sleeve 11 will effect angular adjustment of the plunger but at the same time the plunger is permitted free axial movement relative to the sleeve.
  • the open end of the slit 12 is partially closed and this is effected by deforming the sleeve on opposite sides of the slit so as to define a pair of ears 14. In this manner the peg 13 cannot pass out of the slit so that the plunger together with the spring abutment and the spring are retained relative to the remaining parts of the injection pump.
  • a liquid fuel injection pump comprising a body part, a plunger reciprocably mounted within the body part, a sleeve attached to the body part at one end thereof, means mounting the sleeve on said body part to permit angular movement thereon about the axis of reciprocation of the plunger, an open ended slit extending from the end of the sleeve remote from the body part and a peg secured to the plunger and engaged within said slit whereby angular movement of the sleeve will impart angular movement to the plunger, the plunger being allowed free axial movement relative to the sleeve, and in .which the open end of the slit is partially closed by deforming a portion of the sleeve to thereby prevent the plunger from falling out of the body part.
  • a liquid fuel injection pump as claimed in claim 1 in which the sleeve is deformed on opposite sides of the slit to define a pair of cars at the open end of the slot with which the peg co-operates.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
US743466A 1967-07-28 1968-07-09 Liquid fuel injection pumps Expired - Lifetime US3490384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3479067 1967-07-28

Publications (1)

Publication Number Publication Date
US3490384A true US3490384A (en) 1970-01-20

Family

ID=10369975

Family Applications (1)

Application Number Title Priority Date Filing Date
US743466A Expired - Lifetime US3490384A (en) 1967-07-28 1968-07-09 Liquid fuel injection pumps

Country Status (6)

Country Link
US (1) US3490384A (enrdf_load_stackoverflow)
AT (1) AT287399B (enrdf_load_stackoverflow)
DE (1) DE6607168U (enrdf_load_stackoverflow)
ES (1) ES356799A1 (enrdf_load_stackoverflow)
FR (1) FR1572949A (enrdf_load_stackoverflow)
GB (1) GB1225778A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857653A (en) * 1972-07-21 1974-12-31 Cav Ltd Fuel injection pumping apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1444354A (en) * 1972-10-13 1976-07-28 Bryce Berger Ltd Liquid fuel injection pumping apparatus
DE3138409A1 (de) * 1981-09-26 1983-04-21 Robert Bosch Gmbh, 7000 Stuttgart "kraftstoffeinspritzpumpe fuer brennkraftmaschinen"
US6123059A (en) * 1997-09-05 2000-09-26 Denso Corporation Fuel supply apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1556149A (en) * 1923-05-07 1925-10-06 U S Sanitary Specialties Corp Dispensing valve
US2608825A (en) * 1947-09-22 1952-09-02 Theodore A Cheesman Hydraulic jack
US2694977A (en) * 1951-11-10 1954-11-23 Lincoln Eng Co Injector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1556149A (en) * 1923-05-07 1925-10-06 U S Sanitary Specialties Corp Dispensing valve
US2608825A (en) * 1947-09-22 1952-09-02 Theodore A Cheesman Hydraulic jack
US2694977A (en) * 1951-11-10 1954-11-23 Lincoln Eng Co Injector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857653A (en) * 1972-07-21 1974-12-31 Cav Ltd Fuel injection pumping apparatus

Also Published As

Publication number Publication date
GB1225778A (enrdf_load_stackoverflow) 1971-03-24
FR1572949A (enrdf_load_stackoverflow) 1969-06-27
DE6607168U (de) 1971-01-28
ES356799A1 (es) 1970-02-01
AT287399B (de) 1971-01-25

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