US2548342A - Fuel injection pump for internalcombustion engines - Google Patents

Fuel injection pump for internalcombustion engines Download PDF

Info

Publication number
US2548342A
US2548342A US9655A US965548A US2548342A US 2548342 A US2548342 A US 2548342A US 9655 A US9655 A US 9655A US 965548 A US965548 A US 965548A US 2548342 A US2548342 A US 2548342A
Authority
US
United States
Prior art keywords
shim
fuel injection
parts
injection pump
spring
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
US9655A
Other languages
English (en)
Inventor
Brook Kenneth
Evans Fraser Mackie
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.)
CAV Ltd
Original Assignee
CAV 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 CAV Ltd filed Critical CAV Ltd
Application granted granted Critical
Publication of US2548342A publication Critical patent/US2548342A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2107—Follower

Definitions

  • This invention relates to fuel injection pumps of the reciprocatory type for internal combustion engines, in which reciprocatory motion is imparted to the plunger in one direction by a rotary cam and in the other direction by a spring. Ordinarily the motion is transmitted from the cam to the plunger by an intermediate thrust piece which is axially adjustable, the adjustability being required to bring the plunger into proper relation with parts in the pump cylinder,
  • the said invention comprises a thrust piece formed by a pair of axially adjustable parts adapted to accommodate between them an adjusting shim.
  • the improvement comprises a thrust piece as claimed in our previous specification above mentioned, and having combined with it means for obviating risk of displacement of the shim.
  • Figure 1 is an elevation in section of a part of the driving mechanism of a fuel injection pump for internal combustion engines constructed in accordance with the invention
  • Figure 2 is a similar view showing a modified construction
  • Figure 3 is a similar view showing a further modification
  • Figure 4 is a horizontal section of the modifiprising a pair of parts 4 and 5, the former, slidable in a bore 6, and the parts being separated by a shim l permitting axial adjustment of the said parts.
  • the shim l is accommodated in a recess 8 formed in the end of the part 4 adjacent to the shim, and a spring ring 9 is let into the said recess.
  • the ring abuts on one side of the shim, and by its grip on the sides of the recess, holds the shim in position in the event of separation of the two parts of the thrust piece.
  • the shim 1 is located in a recess 8 in the part 4 as in the previously described example, and between the two parts 4 and 5 of the thrust piece there is placed a helical compression spring II] which at one end bears on the shim.
  • the spring is such that in the event of separation of the parts of the thrust piece it can extend sufiiciently to hold the shim in position.
  • the shim I is located in a recess 8 in the part 4 as in the previously described examples, and the two parts 4 and 5 of the thrust piece are interconnected by a spring ring I I lying within a recess in the part 5.
  • One end of the spring ring is extended radially outwardly at l2 through a hole 13 in the side of the part 5 and a coaxial hole I4 in the side of the part 4. The parts 4 and 5 are thus anchored together.
  • a reciprocatory pump of the kind specified having in combination at least one plunger, a spring acting on said plunger, a cam for moving said plunger against the action of said spring, a thrust piece through the medium of which said cam acts on said plunger, and which is composed of a pair of axially adjustable parts, at least one adjusting shim arranged between said axially adjustable parts, and spring means carried by said thrust piece for obviating risk of displacement of said shim.
  • said spring means consists of a helical 5 UNITED STATES PATENTS compression spring located between said axially N b Name t adjustable parts and bearing on said shim. 2,138,359 Edwards Jan 30 19 0 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
US9655A 1947-02-22 1948-02-20 Fuel injection pump for internalcombustion engines Expired - Lifetime US2548342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB276046X 1947-02-22

Publications (1)

Publication Number Publication Date
US2548342A true US2548342A (en) 1951-04-10

Family

ID=25730954

Family Applications (1)

Application Number Title Priority Date Filing Date
US9655A Expired - Lifetime US2548342A (en) 1947-02-22 1948-02-20 Fuel injection pump for internalcombustion engines

Country Status (3)

Country Link
US (1) US2548342A (US07122603-20061017-C00294.png)
CH (1) CH276046A (US07122603-20061017-C00294.png)
FR (2) FR932814A (US07122603-20061017-C00294.png)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827078A (en) * 1952-09-11 1958-03-18 Int Basic Economy Corp Valve actuating mechanism
US3153404A (en) * 1963-12-30 1964-10-20 Gen Motors Corp Hydraulic lash adjuster
US3380468A (en) * 1964-06-18 1968-04-30 Ke Marc Res Div Fluid infusion apparatus
US4089234A (en) * 1977-03-15 1978-05-16 Caterpillar Tractor Co. Anti-rotating guide for reciprocating members
US4355546A (en) * 1979-08-09 1982-10-26 Lucas Industries Limited Reciprocable plunger fuel injection pump
EP3181837A1 (en) * 2015-12-17 2017-06-21 Aktiebolaget SKF Cam follower roller device with tappet body made in two parts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129017B (de) * 1958-08-01 1962-05-03 Ford Werke Ag Vorrichtung zur Einstellung des Ventilspiels von Brennkraftmaschinen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR849459A (fr) * 1938-07-30 1939-11-24 Corps pour pompes d'injection de combustible
US2188859A (en) * 1936-03-25 1940-01-30 Timken Roller Bearing Co Fuel injection pump
US2225019A (en) * 1935-01-11 1940-12-17 Retel Jules Marie Rene Injection device for combustion engines
GB581878A (en) * 1945-04-05 1946-10-28 Cav Ltd Improvements relating to fuel injection pumps for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225019A (en) * 1935-01-11 1940-12-17 Retel Jules Marie Rene Injection device for combustion engines
US2188859A (en) * 1936-03-25 1940-01-30 Timken Roller Bearing Co Fuel injection pump
FR849459A (fr) * 1938-07-30 1939-11-24 Corps pour pompes d'injection de combustible
GB581878A (en) * 1945-04-05 1946-10-28 Cav Ltd Improvements relating to fuel injection pumps for internal combustion engines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827078A (en) * 1952-09-11 1958-03-18 Int Basic Economy Corp Valve actuating mechanism
US3153404A (en) * 1963-12-30 1964-10-20 Gen Motors Corp Hydraulic lash adjuster
US3380468A (en) * 1964-06-18 1968-04-30 Ke Marc Res Div Fluid infusion apparatus
US4089234A (en) * 1977-03-15 1978-05-16 Caterpillar Tractor Co. Anti-rotating guide for reciprocating members
US4355546A (en) * 1979-08-09 1982-10-26 Lucas Industries Limited Reciprocable plunger fuel injection pump
EP3181837A1 (en) * 2015-12-17 2017-06-21 Aktiebolaget SKF Cam follower roller device with tappet body made in two parts

Also Published As

Publication number Publication date
FR932814A (fr) 1948-04-02
CH276046A (fr) 1951-06-15
FR58038E (US07122603-20061017-C00294.png) 1953-09-21

Similar Documents

Publication Publication Date Title
GB1366048A (en) Fuel injection pump for multi-cylinder internal combustion engines
US2970581A (en) Internal combustion engines the compression ratio of which is adjustable in operation
US2548342A (en) Fuel injection pump for internalcombustion engines
GB1235514A (en) Improvements in or relating to fuel injection pumps
GB1180630A (en) Improvements in or relating to Fuel Injection Devices for Compression Ignited Internal Combustion Engines
GB993888A (en) Improvements in mechanisms for adjusting the start of injection in fuel injection pumps
US2449382A (en) Fuel injection device
US1497258A (en) Internal-combustion engine
ES8103591A1 (es) Bomba de inyeccion de combustible para suministrar combusti-ble a un motor de combustion interna
GB783971A (en) Fuel injection pumps
GB1474961A (en) Fuel nozzle assembly for a compression ignition internal combustion engine and a' engine incorporating such a fuel nozzle assembly
JPS5952049U (ja) 内燃機関の燃料噴射ポンプ
US1610997A (en) Fuel pump for internal-combustion engines
US2213994A (en) Fuel feeding device
US1877803A (en) Fuel injection pump for internal combustion engines
GB545847A (en) Improvements in fuel pumps for internal combustion engines
SU699222A2 (ru) Топливовпрыскивающа система
US3027844A (en) Fuel pumps for compression ignition engines
GB622708A (en) Improvements relating to fuel injection pumps for internal combustion engines
GB510748A (en) Improvements in fuel injection pumps for internal combustion engines
US2954147A (en) Fuel metering and pumping device
GB565043A (en) Improvements in hydraulic pumps, and particularly in fuel-injection pumps for multi-cylinder engines
GB548457A (en) Improvements in or relating to fuel injection pumps
GB887198A (en) Liquid fuel pumps for internal combustion engines
ES301984A1 (es) Perfeccionamientos en bombas de inyeccion de combustible para motores de combustion interna.