US2640419A - Liquid fuel injection pump for internal-combustion engines - Google Patents
Liquid fuel injection pump for internal-combustion engines Download PDFInfo
- Publication number
- US2640419A US2640419A US226475A US22647551A US2640419A US 2640419 A US2640419 A US 2640419A US 226475 A US226475 A US 226475A US 22647551 A US22647551 A US 22647551A US 2640419 A US2640419 A US 2640419A
- Authority
- US
- United States
- Prior art keywords
- plunger
- passage
- spill
- pump
- internal
- 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
Links
- 239000007788 liquid Substances 0.000 title description 11
- 239000000446 fuel Substances 0.000 title description 6
- 238000002347 injection Methods 0.000 title description 6
- 239000007924 injection Substances 0.000 title description 6
- 238000002485 combustion reaction Methods 0.000 title description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- IDLFZVILOHSSID-OVLDLUHVSA-N corticotropin Chemical compound C([C@@H](C(=O)N[C@@H](CO)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1NC=NC=1)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC=1C=CC(O)=CC=1)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CC(N)=O)C(=O)NCC(=O)N[C@@H](C)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](C)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(O)=O)NC(=O)[C@@H](N)CO)C1=CC=C(O)C=C1 IDLFZVILOHSSID-OVLDLUHVSA-N 0.000 description 1
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
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
- F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
Definitions
- This invention relates to liquid fuel injection pumps for internal combustion engines, of the kind comprising a plun er which by reciprocation effects the desired pump action and which by rotation about its longitudinal axis establishes communication with each in turn of a plurality of discharge ports.
- the object of th invention is to provide improved means for varying the pump output.
- the invention comprises a pump of the kind aforesaid provided with a spill passage or passages, a spring loaded valve for controlling the spill-flow, and adjustable means for determining the instant in the delivery stroke of the plunger atwhich spill can occur.
- Figure 1 is a sectional side elevation of a pump embodying the invention.
- Figures 2-6 are diagrammatic views illustrating various alternative embodiments of the invention.
- the body part a of the pump has formed therein a core b containing the plunger 0, any convenient means being employed for reciprocating and rotating the plunger.
- the plunger is loaded by a spring d and receives reciprocatory motion from a lever e which is actuated by a rotary cam ,1.
- Rotary motion is imparted to the plunger through helical gear wheels 9', the plunger being in spline connection with one of these wheels.
- the body is provided at least one suction port it but more usually (and as shown) two or more such ports are provided in the same plane around the bore.
- a valve 11 loaded by a spring to a pressure rather less than that at which the liquid is to be delivered by the pump, and at a position beyond the valve a radial spill passage (or passages) p is or are provided in communication with an annular groove q around the plunger.
- the portion of the plunger adjacent to the said groove carries a slidably adjustable Claims. (Cl. 103-2) sleeve 1' whereby the groove can be exposed at any desired position during the discharge stroke of the plunger, and this sleeve is contained in a chamber .5 in the body part which communicates by way of one or more other spill passages 13 with the inlet port or ports h. Adjustment of the position of the sleeve ris effected in any convenient manner, as for example, by a manually or otherwise operable lever 14.
- the arrangement is such that during each delivery stroke of the plunger, the inlet :port or ports is or are first cut oil by the plunger, and thereafter the liquid entrapped in the bore flows down the axial passage in the plunger to the discharge passage which at that time is open to the longitudinal groove in the plun er. Meanwhile the plunger also moves relatively to the above mentioned sleeve, and when the associated circumferential groove is exposed, the valve can open under the pressure of the liquid acting on it and so allow liquid to escape past the sleeve to the pump inlet, thus interrupting the flow through the discharge passage.
- the volume of liquid delivered to the discharge passage during movements of the plunger can be suitably varied to suit the requirements of the engine.
- the spring loaded valve 11. is arranged in the sleeve, and the latter is provided with an internal annular groove w for co-operating with the groove q around the plunger, the valve being arranged to control a passage 3: in the sleeve leading from the groove to the surrounding chamber.
- the sleeve is formed at one end with an annular recess 2 which at the desired position of the plunger can receive liquid from the groove q around the plunger, and the open end of the recess is covered by an annular valve n loaded by a spring or springs o.
- the spring loaded valve 11. is arranged in a passage 3 leading from the above mentioned chamber s to the pump inlet.
- a liquid fuel injection pump comprising, in
- a body a pump plunger movable in a bore in the body, means for continuously reciprocating the plunger, means for continuously rotating the plunger about its longitudinal axis,
- passage means in the plunger communicating with a lateral openi ng therein, a plurality of discharge ports in the bore 'circumferentially disposed about the plunger so that communication is established by each in turn of said ports with the plunger passage means, spill passage means forpermitting escape of a proportion of the fuel entrapped by the plunger at each stroke, a spring loaded valve controlling the spill flow in said passage means, and adjustable means for determining the instant in the delivery stroke of the plunger at which spill can occur, the arrangement being such that the aforesaid determination of the instant of spill flow is eiiected independently of .the relation between the rotational and longitudinal positions of the pump plunger.
- a pump according to claim 1 comprising a formation in the body constituting a spill chamber surrounding the pump plunger, spill passage means in the plunger leading to said chamber, a sleeve member surrounding the plunger for controlling the outlet of said spill passage, and means 4 for adjusting the position of said sleeve member to vary the time at which the said spill passage outlet is opened.
- a pump according to claim 1 comprising a formation in the body constituting a spill chamber surrounding the pump plunger, spill passage means in the plunger, a sleeve member surrounding the plunger for controlling said spill passage, and means for adjusting the position of said sleeve member to vary the time at which the outlet of said spill passage is opened, the spring loaded spillage control valve being combined with the plunger.
- a pump according to claim 1 comprising a formation in the body constituting a spill chamber surrounding the pump plunger, spill passage means in the plunger, a sleeve member surrounding the plunger for controlling said spill passage, and means for adjusting the position of said sleeve member to vary the time at which the outlet of said spill passage is opened, the spring loaded spillage control valve being combined with the sleeve member.
- a pump according to claim 1 comprising a formation in the body constituting a spill chamber. surrounding the pump plunger, spill passage means in the plunger, a sleeve member surrounding the plunger for controlling said spill passage, and means for adjusting the position of said sleeve member to vary the time at which the outlet of said spill passage is opened, the spring loaded spillage control valve being arranged in the pump body.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB297138X | 1950-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2640419A true US2640419A (en) | 1953-06-02 |
Family
ID=10295926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US226475A Expired - Lifetime US2640419A (en) | 1950-05-23 | 1951-05-15 | Liquid fuel injection pump for internal-combustion engines |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2640419A (de) |
| CH (1) | CH297138A (de) |
| FR (1) | FR1037218A (de) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2746443A (en) * | 1953-02-20 | 1956-05-22 | Texas Co | Fuel injection pump |
| US2853947A (en) * | 1953-03-16 | 1958-09-30 | Cav Ltd | Liquid fuel injection pumps for engines |
| US3046894A (en) * | 1960-01-27 | 1962-07-31 | Simmonds Aerocessories Inc | Metering pump mechanism |
| US3848576A (en) * | 1972-11-29 | 1974-11-19 | Bosch Gmbh Robert | Fuel injection pump for internal combustion engines |
| US3999529A (en) * | 1975-05-19 | 1976-12-28 | Stanadyne, Inc. | Multiple plunger fuel injection pump |
| US4220128A (en) * | 1977-06-30 | 1980-09-02 | Diesel Kiki Co., Ltd. | Distribution type fuel injection pump |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229148A (en) * | 1978-12-22 | 1980-10-21 | Ambac Industries, Incorporated | Fuel injection pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1897898A (en) * | 1930-03-08 | 1933-02-14 | Paul Viet | Automatic pressure regulating device |
| US1940524A (en) * | 1931-01-09 | 1933-12-19 | Bellem Louis Henri Libert | Fuel pump |
| US2012128A (en) * | 1929-09-09 | 1935-08-20 | Hesselman Knut Jonas Elias | Device for injecting fuel into internal combustion engines |
| US2414696A (en) * | 1943-11-05 | 1947-01-21 | Horace P Miller | Fuel pump |
-
1951
- 1951-05-15 US US226475A patent/US2640419A/en not_active Expired - Lifetime
- 1951-05-17 FR FR1037218D patent/FR1037218A/fr not_active Expired
- 1951-05-23 CH CH297138D patent/CH297138A/de unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2012128A (en) * | 1929-09-09 | 1935-08-20 | Hesselman Knut Jonas Elias | Device for injecting fuel into internal combustion engines |
| US1897898A (en) * | 1930-03-08 | 1933-02-14 | Paul Viet | Automatic pressure regulating device |
| US1940524A (en) * | 1931-01-09 | 1933-12-19 | Bellem Louis Henri Libert | Fuel pump |
| US2414696A (en) * | 1943-11-05 | 1947-01-21 | Horace P Miller | Fuel pump |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2746443A (en) * | 1953-02-20 | 1956-05-22 | Texas Co | Fuel injection pump |
| US2853947A (en) * | 1953-03-16 | 1958-09-30 | Cav Ltd | Liquid fuel injection pumps for engines |
| US3046894A (en) * | 1960-01-27 | 1962-07-31 | Simmonds Aerocessories Inc | Metering pump mechanism |
| US3848576A (en) * | 1972-11-29 | 1974-11-19 | Bosch Gmbh Robert | Fuel injection pump for internal combustion engines |
| US3999529A (en) * | 1975-05-19 | 1976-12-28 | Stanadyne, Inc. | Multiple plunger fuel injection pump |
| US4220128A (en) * | 1977-06-30 | 1980-09-02 | Diesel Kiki Co., Ltd. | Distribution type fuel injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1037218A (fr) | 1953-09-15 |
| CH297138A (de) | 1954-03-15 |
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