US1633320A - Injector for mineral-oil motors - Google Patents
Injector for mineral-oil motors Download PDFInfo
- Publication number
- US1633320A US1633320A US18703A US1870325A US1633320A US 1633320 A US1633320 A US 1633320A US 18703 A US18703 A US 18703A US 1870325 A US1870325 A US 1870325A US 1633320 A US1633320 A US 1633320A
- Authority
- US
- United States
- Prior art keywords
- valve
- spring
- injector
- screw
- seat
- 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
- 239000002480 mineral oil Substances 0.000 title description 4
- 229940042472 mineral oil Drugs 0.000 title description 4
- 235000010446 mineral oil Nutrition 0.000 title description 4
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010298 pulverizing process Methods 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
- F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
Definitions
- the present invention relates to injectors for use in connection with internal combustion engines, for injecting the fuel under pressure Without the aid of pulveri zation air, and concerns that class of injectors in which a needle valve provided with a stem whose diameter is greater than the seat of the valve itself, effects the closure towards the cylinder and is borne down upon its seat by a strong loading spring which only allows the valve to rise when the oil under pressure is driven by the fuel injection pump.
- the object of the present invention is to provide an injector wherein the tension of the loading spring can conveniently be temporarily released and then returned to its normal tension, for instance, in order to facilitate the starting of the engine, it being necessary afterwards to re-establish the nor mal working tension.
- the tension of the needle loading spring- is rendered conveniently releasable by the provision of twoconcentric screws, the inner one which is adapted to be locked in adjusted position, whilst the outer one is provided with a handle adapted to abut against a stop and capable of being rotated to release and to restore the tension-of the sprin
- the invention also includes a simp e and effective filter for the fuel comprising a bush having an even number of threads with the grooves therebetween arranged open alternatively at opposite ends; there being a slight play between the bush itself and the injector body, as hereinafter more fully dethe handle 11 displaced, and
- Figure 4 is a view of the part constituting the filter.
- FIG. 1 represents'the injector body with the valve seat.
- a flange f-- is provided which carries two concentric screws and k-, the latter being pointed and ahutting against the upper plate of the spring d-.
- the screw -g' is provided with a handle Z formed inte al therewith.
- a etent pin for the handle The whole is kept in position by bolts against an orifice provided in the motor cylinder combustion chamber.
- the operation of the device is as follows: When the oil driven by the injection pump has attained a suflicient degree of pressure, the diameter of the valve stem abeing greater than that of the seat,"the valve itself 1 rises, overcoming the resistance of the spring
- the outer surface of the bush -b carries a multiple thread screw, havin two or any other even numberof threa s.
- the grooves running between two conti uous threads are open alternately, one towar s the vwithin the former grooves, and the bush constitutes an effectual filter which may be cleaned with the greatest ease on withdrawing the bush itself.
- an adjusting screw g has been provided to which is attached a handle -i.
- the screw carries on its axis another screw h and a fixing nut.
- the handle --z'- normally, strikes against the detent pin --l-.
- the lever 21- is turned in such manner as been noticed that in a Ill to slacken the spring d as far as is requisite for startlng, as in Figure 3, and it is then conveyed back to its normal position as soon as the engine is running.
- a spray nozzle for internal combustion engines comprising a body adapted to be fastened to the cylinder head, an automatic needle valve, a valve seat formed in the body 7 cage, screw means for regulating the pressure of the spring and for locking the same, a screw device for quickly releasing and for restoring the spring pressure, comprising a handle and a stop pin.
- a spray nozzle for internal combustion engines comprising a valve body, a valve- 7 seat in said body, a needle valve, a sleeve acting as a guide for said valve and having a slight lay with the inner surface of the valve b0 y, said sleeve being provided on its external surface with a plurality of spiral grooves each closed at one end, and alternately closed and open at the fuel entrance and at the valve seat end, thus acting as a filter for the fuel oil.
- a spray valve-for internal combustion engines comprising a valve body, a valve seat in said body, a needle valve, a spring for forcing said valve against the seat, means for regulating the tenslon of said spring, a valve sleeve snugly fitting said valve-and serving as a guide therefor, a nut closing said sleeve against the valve body, means for introducing the fuel toward the upper end o f'the valve body, spiral grooves onthe outside surface of the sleeve, adapted to deiiver filtered oil to the seat of the needle va ve.
- a spraynozzle for internal combustion engines comprising a valve body, a spray valve, a valve seat in said body, a flange supported by the valve body, a spring to hold the spray valve against the seat, two concentric regulating screws carried by said flange and supporting said spring, a lever for the outer screw, a fixed stop for the said lover, a lock nut for the lnner screw, and I a spring engaging plate abutting against the said inner screw.
- a spray nozzle for internal combustion engines comprising a valve body, a spray valve, a valve seat in said body, means for supporting a spring against the valve and forcing it against the valve seat, a valve sleeve grooved on its outside surface and acting as fuel filter, together with means for permanent and temporary regulation of the spring tension.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fuel-Injection Apparatus (AREA)
Description
. 1,633 320 "F A. FRANCHETTI INJECTOR FOR MINERAL OIL MOTORS Filed March 27. 1925 2 sheets-sheet 1- //1/ @/1/o 7 fl/essandro Wane/197W I fl/forwey.
June 1927' A. FRANCHETT] INJECTOR FOR MINERAL OIL MOTORS Filed March 27. 1925 2 Sheets-Sheet 2 Patented June 21, 1927.
UNITED: STATES] PATENT, OFFICE.
d mmc'ron r011. MINERAL-OIL morons.
Application filed March 27, 1925, Serial N9. 18,703, and in Italy April 10, 1984.
The present invention relates to injectors for use in connection with internal combustion engines, for injecting the fuel under pressure Without the aid of pulveri zation air, and concerns that class of injectors in which a needle valve provided with a stem whose diameter is greater than the seat of the valve itself, effects the closure towards the cylinder and is borne down upon its seat by a strong loading spring which only allows the valve to rise when the oil under pressure is driven by the fuel injection pump.
' The object of the present invention is to provide an injector wherein the tension of the loading spring can conveniently be temporarily released and then returned to its normal tension, for instance, in order to facilitate the starting of the engine, it being necessary afterwards to re-establish the nor mal working tension.
According to the present invention, the tension of the needle loading spring-is rendered conveniently releasable by the provision of twoconcentric screws, the inner one which is adapted to be locked in adjusted position, whilst the outer one is provided with a handle adapted to abut against a stop and capable of being rotated to release and to restore the tension-of the sprin The invention also includes a simp e and effective filter for the fuel comprising a bush having an even number of threads with the grooves therebetween arranged open alternatively at opposite ends; there being a slight play between the bush itself and the injector body, as hereinafter more fully dethe handle 11 displaced, and
Figure 4 is a view of the part constituting the filter.
Referring mainly to Figure 1, represents'the injector body with the valve seat..
At b is shown a guide-bush for the spindle-valve c-, which bush also acts as a filter as will hereinafter be explained. The
SPIlHgd7;hOldS the valve fast on its seat.
At e is indicated the fuel admission pipe. A flange f-- is provided which carries two concentric screws and k-, the latter being pointed and ahutting against the upper plate of the spring d-.
The screw -g' is provided with a handle Z formed inte al therewith. At Z- may be noted a etent pin for the handle The whole is kept in position by bolts against an orifice provided in the motor cylinder combustion chamber. The operation of the device is as follows: When the oil driven by the injection pump has attained a suflicient degree of pressure, the diameter of the valve stem abeing greater than that of the seat,"the valve itself 1 rises, overcoming the resistance of the spring The outer surface of the bush -b carries a multiple thread screw, havin two or any other even numberof threa s. The grooves running between two conti uous threads are open alternately, one towar s the vwithin the former grooves, and the bush constitutes an effectual filter which may be cleaned with the greatest ease on withdrawing the bush itself.
It having moreover order to facilitate starting it is advisable to relax the tension of the sprin it being necessary afterwards to re-establish the normal working tension of the latter without any further trials; an adjusting screw g has been provided to which is attached a handle -i. The screw carries on its axis another screw h and a fixing nut.
Upon the top of the screw -h rests the upper cap of the spring d-.
The handle --z'-, normally, strikes against the detent pin --l-. On starting,
the lever 21- is turned in such manner as been noticed that in a Ill to slacken the spring d as far as is requisite for startlng, as in Figure 3, and it is then conveyed back to its normal position as soon as the engine is running.
The adjustment of the tension of the spring d-- is effected once for all by means of the screw h and fixed by its lock-nut.
It is plain that the operation of the lever --Z does not influence said adjustment, because after each startin the screw his conveyed back to its original position.
In order to facilitate the adjustment by means of the screw hthe pin 'Z- is furnished with a graduation placed against the head thereof.
Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:
1. A spray nozzle for internal combustion engines, comprising a body adapted to be fastened to the cylinder head, an automatic needle valve, a valve seat formed in the body 7 cage, screw means for regulating the pressure of the spring and for locking the same, a screw device for quickly releasing and for restoring the spring pressure, comprising a handle and a stop pin.
3. A spray nozzle for internal combustion engines, comprising a valve body, a valve- 7 seat in said body, a needle valve, a sleeve acting as a guide for said valve and having a slight lay with the inner surface of the valve b0 y, said sleeve being provided on its external surface with a plurality of spiral grooves each closed at one end, and alternately closed and open at the fuel entrance and at the valve seat end, thus acting as a filter for the fuel oil.
4. A spray valve-for internal combustion engines, comprising a valve body, a valve seat in said body, a needle valve, a spring for forcing said valve against the seat, means for regulating the tenslon of said spring, a valve sleeve snugly fitting said valve-and serving as a guide therefor, a nut closing said sleeve against the valve body, means for introducing the fuel toward the upper end o f'the valve body, spiral grooves onthe outside surface of the sleeve, adapted to deiiver filtered oil to the seat of the needle va ve.
5. A spraynozzle for internal combustion engines, comprising a valve body, a spray valve, a valve seat in said body, a flange supported by the valve body, a spring to hold the spray valve against the seat, two concentric regulating screws carried by said flange and supporting said spring, a lever for the outer screw, a fixed stop for the said lover, a lock nut for the lnner screw, and I a spring engaging plate abutting against the said inner screw. v. I
' 6. A spray nozzle for internal combustion engines, comprising a valve body, a spray valve, a valve seat in said body, means for supporting a spring against the valve and forcing it against the valve seat, a valve sleeve grooved on its outside surface and acting as fuel filter, together with means for permanent and temporary regulation of the spring tension.
ALESSANDRO FRANCHETTI.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1633320X | 1924-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1633320A true US1633320A (en) | 1927-06-21 |
Family
ID=11434386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18703A Expired - Lifetime US1633320A (en) | 1924-04-10 | 1925-03-27 | Injector for mineral-oil motors |
Country Status (1)
Country | Link |
---|---|
US (1) | US1633320A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2581458A (en) * | 1946-01-22 | 1952-01-08 | Leslie D Thompson | Method and apparatus for operating internal-combustion engines on composite mixturesof diesel fuel oil and gasoline |
US3499605A (en) * | 1967-12-22 | 1970-03-10 | Allis Chalmers Mfg Co | Nozzle holder |
US3829014A (en) * | 1972-11-29 | 1974-08-13 | Stanadyne Inc | Fuel injector having self-cleaning filter |
US4635853A (en) * | 1983-07-09 | 1987-01-13 | Lucas Industries Public Limited Company | Fuel injection nozzles |
FR2877708A1 (en) * | 2004-11-09 | 2006-05-12 | Johnson Contr Automotive Elect | VALVE HAVING A BODY INCORPORATING A FILTER |
-
1925
- 1925-03-27 US US18703A patent/US1633320A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2581458A (en) * | 1946-01-22 | 1952-01-08 | Leslie D Thompson | Method and apparatus for operating internal-combustion engines on composite mixturesof diesel fuel oil and gasoline |
US3499605A (en) * | 1967-12-22 | 1970-03-10 | Allis Chalmers Mfg Co | Nozzle holder |
US3829014A (en) * | 1972-11-29 | 1974-08-13 | Stanadyne Inc | Fuel injector having self-cleaning filter |
US4635853A (en) * | 1983-07-09 | 1987-01-13 | Lucas Industries Public Limited Company | Fuel injection nozzles |
FR2877708A1 (en) * | 2004-11-09 | 2006-05-12 | Johnson Contr Automotive Elect | VALVE HAVING A BODY INCORPORATING A FILTER |
WO2006051205A1 (en) * | 2004-11-09 | 2006-05-18 | Valeo Systemes De Controle Moteur | Valve system comprising a filter-equipped body |
JP2008519225A (en) * | 2004-11-09 | 2008-06-05 | ヴァレオ システム ドゥ コントロル モツール | Valve with a body incorporating a filter |
CN100532900C (en) * | 2004-11-09 | 2009-08-26 | 法雷奥马达控制系统公司 | Valve system comprising a filter-equipped body |
US7832423B2 (en) | 2004-11-09 | 2010-11-16 | Valeo Systemes De Controle Moteur | Valve having a body incorporating a filter |
JP4699475B2 (en) * | 2004-11-09 | 2011-06-08 | ヴァレオ システム ドゥ コントロル モツール | Valve with a body incorporating a filter |
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