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Publication numberUS2483951 A
Publication typeGrant
Publication dateOct 4, 1949
Filing dateFeb 6, 1946
Priority dateDec 13, 1944
Publication numberUS 2483951 A, US 2483951A, US-A-2483951, US2483951 A, US2483951A
InventorsAnsley Watson Ernest
Original AssigneeLucas Ltd Joseph
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Liquid fuel nozzle
US 2483951 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Oct. 4, 1949. E, A, WATSON 2,483,951

LIQUID FUEL NozzLE Filed Feb. 6-. 194b` Fig?) Zn/116m Patented Oct. 4, 1949 LIQUID FUEL NozzLE Ernest Ansley Watson, Birmingham, England, as-

signor `tio Joseph Lucas Limited, Birmingham,

an v


Application February 6, 1946, Serial No.

In Great Britain December 13, 1944 1 Claim. (Cl. 299-115) This invention has for its object to provide improved liquid fuel nozzles of the swirling-jet type adapted to convey liquid fuel to a common discharge oriilce from either or both of a pair of fuel supply ducts, and adapted for use more particularly with internal combustion prime movers.

The invention comprises the combination with a hollow body part having a pair of supply ducts, of a swirl plug located at the kexit of one of the ducts, an annular swirl plate at the exit of the swirl plug and in communication with the other duct, and a discharge nipple adapted to form a swirl chamber.

In the accompanying drawings. Figure 1 is a longitudinal section and Figure 2 a cross section on the line 2 2, Figure 1, of a liquid fuel nozzle embodying the invention. Figure 3 is a front elevation of a swirl plate forming part of this nozzle.

Referring to the drawings, I employ a hollow cylindrical body part a adaptedat one end to be connected to one end of the outer pipe of a pair of inner and outer pipes b, c. In the other end of the part a and over the adjacent end of the inner pipe c is placed a piece d which is grooved externally to receive liquid fuel from the outer pipe b, and which at its forward end is chambered to receive fuel from the inner pipe c. In contact with the forward ends of the parts a, d is placed a disc e. This is formed with holes f situated opposite an adjacent annular groove'd' around the part d, and these holes open into an annular groove g in the front face of the disc e. At the centre of the disc e is formed a tapered hole which is occupied by a correspondingly tapered swirl plug h, this being held in position by a spring i, the exterior of the plug being formed with helical grooves k through which liquid fuel can now from the inner pipe c. In contact with the front of the disc e is placed an annular swirl plate m having formed in its slots n (Figure 3) which open tangentially into the inner periphery of the plate and which at their closed ends lie opposite the groove g in the disc e. At the front side of the swirl plate m and in contactwith it is placed a nipple o which has a conical bore forming the swirl chamber p. The parts are held together by a shouldered sleeve q which nts over the part a and is secured by another sleeve r in screw thread connection with the part a, accidental slackening of the sleeve r being prevented by a lock nut s.

the swirl chamber p.

By the invention I am able to construct nozzles simple and convariation is made in the passages leading to the swirl plug h and the swirl plate m.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is: v

A liquid fuel nozzle comprising the combination of a body having a pair of liquid fuel passages, a

said passages and formed with holes and a central bore through which fuel can ilow from said passages, a swirl plug situated in said bore, an annular swirl plate having one face in contact with the outer face of said disc and having tangential slots in communication with the holes in said disc, a nipple in contact with the outer face of said swirl plate and having a swirl chamber formed therein, and means securing the parts of the nozzle together.


REFERENCES CITED The following references are of record in the iile of this patent:

UNITED STATES PATENTS Number Name Date 1,568,427 Strachan et al. Jan. 5, 1926 1,656,894 Haynes Jan. 17, 1928 1,980,132 Fletcher Nov. 6, 1934 n 2,049,509 McDonald Aug. 4, 1936

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1568427 *Nov 15, 1922Jan 5, 1926Morse Drydock & Repair CoAtomizer
US1656894 *Jan 21, 1926Jan 17, 1928Todd Dry Dock Engineering & ReLiquid-fuel-delivery apparatus
US1980132 *Dec 6, 1932Nov 6, 1934Babcock & Wilcox CoLiquid fuel burner
US2049509 *Nov 26, 1935Aug 4, 1936Todd Comb Equipment IncLiquid fuel burner
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2572606 *Sep 9, 1947Oct 23, 1951Bendix Aviat CorpBurner nozzle
US2650808 *Nov 9, 1950Sep 1, 1953Abraham J CohenCarbonator cooler
US2700416 *Apr 10, 1950Jan 25, 1955Rolls RoyceFuel injection means for gas-turbine engines and combustion equipment used therewith
US2921742 *Jun 16, 1958Jan 19, 1960Johnsyn Jr Wadsworth JFuel nozzles
US2956957 *Apr 2, 1956Oct 18, 1960Grace W R & CoMethod for producing clear, homogeneous silica hydrosols
US2963282 *May 2, 1957Dec 6, 1960Gen Motors CorpFuel nozzle
US2965303 *Mar 30, 1959Dec 20, 1960United Aircraft CorpCoolant injection in a fuel nozzle
US3016916 *Oct 9, 1957Jan 16, 1962Dole Valve CoConcentrate proportioner
US3028102 *Aug 14, 1957Apr 3, 1962Parker Hannifin CorpLiquid fuel spray nozzle
US3558056 *Nov 22, 1968Jan 26, 1971Energy Sciences IncStreaming nozzle
US4070826 *Dec 24, 1975Jan 31, 1978General Electric CompanyLow pressure fuel injection system
US5337926 *Jul 22, 1993Aug 16, 1994The Procter & Gamble CompanySpray pump package employing multiple orifices for dispensing liquid in different spray patterns with automatically adjusted optimized pump stroke for each pattern
US5411185 *Jun 1, 1994May 2, 1995The Procter & Gamble CompanySpray pump package employing multiple orifices having an orifice selector system
US6301900Sep 17, 1999Oct 16, 2001Mitsubishi Heavy Industries, Ltd.Gas turbine combustor with fuel and air swirler
U.S. Classification239/430, 239/428.5, 239/428, 60/748
International ClassificationF23D11/38, F23D11/24
Cooperative ClassificationF23D11/24, F23D11/383
European ClassificationF23D11/24, F23D11/38B