GB1219631A - Improvements in or relating to fuel injection pumps - Google Patents
Improvements in or relating to fuel injection pumpsInfo
- Publication number
- GB1219631A GB1219631A GB407868A GB407868A GB1219631A GB 1219631 A GB1219631 A GB 1219631A GB 407868 A GB407868 A GB 407868A GB 407868 A GB407868 A GB 407868A GB 1219631 A GB1219631 A GB 1219631A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- passages
- feed pump
- injection
- 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
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
- 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
- F02M41/14—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 rotary distributor supporting pump pistons
- F02M41/1405—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 rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
- F02M41/1411—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 rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
-
- 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
- F02M41/02—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements
- F02M41/06—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements the distributor rotating
-
- 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
- F02M41/123—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 characterised by means for varying fuel delivery or injection timing
- F02M41/125—Variably-timed valves controlling fuel passages
- F02M41/127—Variably-timed valves controlling fuel passages valves being fluid-actuated slide-valves, e.g. differential rotary-piston pump
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
1,219,631. Fuel Injection pumps. ROBERT BOSCH G.m.b.H. Jan. 26, 1968 [Jan. 27, 1967], No. 4078/68. Heading F1A. In a fuel injection pump of the rotary distributor type in which a by-pass valve is opened during the stroke of the injection plunger to terminate injection, by a pressure pulse operating in synchronism with the reciprocating plunger, the pressure pulses are derived from the feed pump in conjunction with the rotary distributor. As shown in Fig. 1, during the suction stroke the feed pump 1 supplies fuel through passages 32, 33, 36, chamber 34, the pressure in which is regulated by a valve 43, and passages 41, 40, 23. On the delivery tube the passage 39 is closed and delivery takes place through passages 23, 24 to one of the outlets 3; at the same time the high feed pump pressure passes from a groove 36 through valve 38 to the under side of the valve 5 which is raised until the groove 28 connects the by-pass passages 6a, 6b to terminate injection. On the subsequent suction stroke the valve 5 returns towards its stop 29 under the action of the spring 9, pushing liquid beneath it through the adjustable throttle 10, the feed pump pressure during this period dropping to the set pressure in the suction chamber 34. A further embodiment is described in which the inwardly acting plungers are replaced by outwardly acting plungers (17a). In a further embodiment the invention is applied to a rotating and reciprocating plunger type distributing pump.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR92858A FR1528648A (en) | 1967-01-27 | 1967-01-27 | Improvements to fuel injection systems for multi-cylinder engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1219631A true GB1219631A (en) | 1971-01-20 |
Family
ID=8624501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB407868A Expired GB1219631A (en) | 1967-01-27 | 1968-01-26 | Improvements in or relating to fuel injection pumps |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1601394A1 (en) |
| FR (1) | FR1528648A (en) |
| GB (1) | GB1219631A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0383546A2 (en) * | 1989-02-17 | 1990-08-22 | LUCAS INDUSTRIES public limited company | Fuel injection pump |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215060A (en) * | 1991-07-16 | 1993-06-01 | Stanadyne Automotive Corp. | Fuel system for rotary distributor fuel injection pump |
-
1967
- 1967-01-27 FR FR92858A patent/FR1528648A/en not_active Expired
-
1968
- 1968-01-23 DE DE19681601394 patent/DE1601394A1/en active Pending
- 1968-01-26 GB GB407868A patent/GB1219631A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0383546A2 (en) * | 1989-02-17 | 1990-08-22 | LUCAS INDUSTRIES public limited company | Fuel injection pump |
| EP0383546A3 (en) * | 1989-02-17 | 1991-02-27 | LUCAS INDUSTRIES public limited company | Fuel injection pump |
| US5080563A (en) * | 1989-02-17 | 1992-01-14 | Lucas Industries | Fuel pumping apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1601394A1 (en) | 1970-10-29 |
| FR1528648A (en) | 1968-06-14 |
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