US2094997A - Propelling mechanism for torpedoes - Google Patents

Propelling mechanism for torpedoes Download PDF

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Publication number
US2094997A
US2094997A US35910A US3591035A US2094997A US 2094997 A US2094997 A US 2094997A US 35910 A US35910 A US 35910A US 3591035 A US3591035 A US 3591035A US 2094997 A US2094997 A US 2094997A
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Prior art keywords
torpedo
blades
propellers
propeller
group
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Expired - Lifetime
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US35910A
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English (en)
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Lucich Giovanni
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B19/00—Marine torpedoes, e.g. launched by surface vessels or submarines; Sea mines having self-propulsion means
    • F42B19/12—Propulsion specially adapted for torpedoes

Definitions

  • Torpedoes are at present furnished with a single propeller unit at the stern, or when a stronger propulsive potency is desired, a multiple of propellers always at the stern.
  • the position of the propeller at the extremity of the stern of the torpedo makes necessary certain special corrective arrangements in order that the forward thrust exercised by the propeller or propellers will give a concentrated result, thereby avoiding undesirable movements of the torpedo.
  • an effective torpedo requires a correspondingly increased speed, and it is therefore necessary in torpedoes to employ motors of high power. It is also desirable to exclude, because of the reasons above indicated, the use of multiple propellers at the stern.
  • a torpedo is furnished, as a means of propulsion, with propellers whose blades are mounted on rings embracing or surrounding the body of the torpedo and rotating around its axis and therefore with such rotation on the external body of the torpedo, the blades will act on a mass of water which will be found in the best condition for their operation. In fact such blades will function in water which is not perturbed and is devoid of vortexes.
  • the torpedo in accordance with the present invention, presents at least one group, constituting one propeller and a counterpropeller, and in such a group the first named propeller will rotate in one direction and the counter propeller (with reversed blades) will rotate in the opposite direction, each group of blades impressing its own thrust and preferably rotating on suitable ball-bearing supports.
  • each group can be furnished with blades whose dimensions will be increased over the blades of the preceding group disposed forwardly thereof and the degree of the angularity of the blades of each group can be properly varied to suit the circumstances.
  • the blades of one propeller unit comprising a propeller and counter propeller will function somewhat similarly to what happens in the operation of turbines, as the counter propeller will act on a mass of water moved by the action of the preceding propeller, thereby increasing the effect of its blades.
  • Another feature of my invention is the simplification of the proper functioning of groups of propellers such as was above indicated through the medium of a single axially disposed motor shaft by which the various groups are rotated.
  • each group is actuated by a simple mechanical arrangement of cone-shaped wheels, the propeller and counter propeller of the same group being connected or engaged simultaneously with one or more cone-shaped gear wheels in such manner as to impart to the propeller and its counter propeller rotations in opposite directions to each other.
  • the arrangement intermediate the ends of the torpedo body of one or more groups of propellers and counter-propellers enables a convenient distribution of the blades of propulsion along the length of the torpedo body, thus ensuring to each group of blades the best possible condition for action; this arrangement also permits each group of blades also to rotate in opposite directions from a contiguous group and to act upon a mass of water which is in such condition as to cause a high propulsive result, also the counter-propellers will function under particularly favorable conditions due to the'fact that they are followed by propellers and also because the last counter propeller aft is followed by a portion of the body of the torpedo, the action of which avoids the possibility of unfavorable Whirlpools.
  • the disposition of the group of blades, as indicated, at an intermediate position along the length of the torpedo body also permits a better distribution of the weights of the motor and compressed air tanks, which can be arranged, one near the prow and theother astern of the blades, in such a way as to insure a better balance to the torpedo even during its effective run.
  • propulsive blades as described above, does not exclude the use of propulsive blades astern. These may be utilized in certain cases. Such blades may be if desired actuated with the methods known at present, or by a method analogous to that which is explained for the blades of the present invention.
  • Fig. 1 shows an external view of the torpedo perfected according to the present invention and furnished at an intermediate position of its length, with only one group of a propeller and counter-propeller, both sets of blades being of the same dimensions;
  • Fig. 2 shows in analogous manner a torpedo furnished with two groups of propellers and counter-propellers, situated at proper distance from each other;
  • Fig. 3 shows a torpedo with three sets of propellers and counter propellers situated at relatively short distances from each other;
  • Fig. 4 shows an axial section and in enlarged scale the particulars of the propeller and the means of propulsion for a case similar to the one indicated by Fig. 3; and
  • Fig. 5 shows a section V-V of Fig. 4, the arrow indicating the direction of rotation.
  • the power from the shaft (5) is imparted to the blades in the following manner: On the shaft (4) with a key (5) a cone-shaped gear ((5) is mounted and engages simultaneously with four cone-shaped gears (7) whose shafts (ii) are normal to the main shaft (4), that is, in a radial direction to the axes of the torpedo. In Fig. a only two of the coneshaped gears (l) are visible.
  • the shafts (8) through journals (9) reach to the external part (it) of the body of the torpedo and run through water-tight casing (H); externally at the extremities of the shafts (8) a number of coneshaped wheels (52) are mounted which wheels rotate all in the same direction and at the same speed with all of the wheels (1) all preferably being equal.
  • a number of coneshaped wheels (52) are mounted which wheels rotate all in the same direction and at the same speed with all of the wheels (1) all preferably being equal.
  • the shafts (8) of each group are all disposed in the same plane and normal to the shaft (4) it is possible to engage with all the wheels (it?) of one group a toothed coneshaped rack (53) on one side and a toothed coneshaped rack (It) on the other side.
  • the rack (13) by the use of screws (I5) is connected with a ring (M5) on which, with the screws (I 1) the blades (it) of a propeller are mounted.
  • the rack (M), by screws (I8) is attached to a ring (29) to which by screws (2! are mounted the blades (22) of a counter-propeller.
  • the result of the mechanism hereinabove described is that if the blades (l8) are rotated in the direction of r the arrow (23) the blades (22) will rotate in the direction of the arrow (24), (Fig. 4).
  • the design of the blades (i8) and (22) show identical dimensions and with opposite pitches, it must be understood that the dimensions of the blades for the counter-propeller may vary from those of the propeller.
  • a propelling mechanism for torpedoes embodying in combination a support comprising the outer shell of the torpedo; a pair of propellers comprising a propeller and counter-propeller, each of said propellers rotating around the axis of the torpedo and having propeller blades movable externally of the said shell of the torpedo, said propellers being situated at a position intermediate the ends of the torpedo and the blades of one of said pair of propellers rotating around the said axis of the torpedo in a direction opposite to the movement of the blades of the other propeller, each of said propeller members comprising a ring rotatable about the body and coaxially with the axis of the torpedo and a plurality of blades fixed to said ring and movable therewith, and means for actuating said rings, each of said rings being provided with a toothed rack portion, shafts, means at one end for rotating said shafts, and gears on said shafts at the other end
  • a propelling mechanism for torpedoes embodying in combination a support comprising the outer shell of the torpedo; a pair. of propellers comprising a propeller and counter-propeller, each of said propellers rotating around the axis of the torpedo and having propeller blades movable externally of the said shell of the torpedo, said propellers being situated at a position intermediate the ends of the torpedo and the blades of one of said pair of propellers rotating around the said axis of the torpedo in a direction opposite to the movement of the blades of the other propeller, each of said propeller members comprising a ring rotatable about the body and co-axially with the axis of the torpedo and a plurality of blades fixed to said ring and movable therewith, radial shafts extending from within the torpedo body to the external surface thereof, means for producing water-tight connection between said radial shafts and torpedo body, means at the
  • a propelling mechanism for torpedoes embodying in combination a support comprising the outer shell of the torpedo; a pair of propellers comprising a propeller and counter-propeller, each of said propellers rotating around the axis of the torpedo and having propeller blades movable externally of the said shell of the torpedo, said propellers being situated at a position intermediate the ends of the torpedo and the blades of one of said pair of propellers rotating around the said axis of the torpedo in a direction opposite to the movement of the blades of the other propeller, each of said propeller members comprising a ring rotatable about the body and coaxially with the axis of the torpedo and a plurality of blades fixed to said ring and movable therewith, and means for actuating said rings, each of said rings being provided with a toothed rack portion, shafts, means at one end for rotating said shafts, and gears on said shafts at the other end
  • a propelling unit for torpedoes comprising a cylindrical torpedo shell section provided With. means for connection to adjacent shell sections,v a plurality of rings rotatable about the surface of said shell section, propeller blades fixed to said rings, a plurality of radial shafts extending from said surface of the shell section to the interior thereof, gears at the outer end of said radial shafts each connected with both of said rings to rotate the same conjointly at the same speed, and means connected With the inner ends of said shafts for rotating the same.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
US35910A 1934-09-17 1935-08-13 Propelling mechanism for torpedoes Expired - Lifetime US2094997A (en)

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IT2094997X 1934-09-17

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US2094997A true US2094997A (en) 1937-10-05

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US (1) US2094997A (fr)
FR (1) FR795366A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440003A (en) * 1945-06-12 1948-04-20 Glenn H Bowlus Helicopter and airplane sustained aircraft
US2572116A (en) * 1946-10-07 1951-10-23 Thomas A Daly Sectionalized torpedo
DE3904161A1 (de) * 1989-02-11 1990-08-16 Telefunken Systemtechnik Unterwasserfahrzeug zur verbringung von mindestens einer in seinem innenraum gelagerten rakete
US5343823A (en) * 1992-01-10 1994-09-06 Hughes Aircraft Company Large diameter low RPM propeller for torpedoes
US8585451B2 (en) 2010-08-05 2013-11-19 Eric Bleicken Circumferential ring propulsors and control assemblies for manned or unmanned underwater vehicles
CN107458558A (zh) * 2017-07-31 2017-12-12 苏州惠贝电子科技有限公司 一种用于水下机器人的万向驱动机构

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440003A (en) * 1945-06-12 1948-04-20 Glenn H Bowlus Helicopter and airplane sustained aircraft
US2572116A (en) * 1946-10-07 1951-10-23 Thomas A Daly Sectionalized torpedo
DE3904161A1 (de) * 1989-02-11 1990-08-16 Telefunken Systemtechnik Unterwasserfahrzeug zur verbringung von mindestens einer in seinem innenraum gelagerten rakete
US5343823A (en) * 1992-01-10 1994-09-06 Hughes Aircraft Company Large diameter low RPM propeller for torpedoes
US8585451B2 (en) 2010-08-05 2013-11-19 Eric Bleicken Circumferential ring propulsors and control assemblies for manned or unmanned underwater vehicles
US20140299034A1 (en) * 2010-08-05 2014-10-09 Eric Bleicken Circumferential ring propulsors and control assemblies for manned or unmanned underwater vehicles
US9227708B2 (en) * 2010-08-05 2016-01-05 Eric Bleicken Circumferential ring propulsors and control assemblies for manned or unmanned underwater vehicles
CN107458558A (zh) * 2017-07-31 2017-12-12 苏州惠贝电子科技有限公司 一种用于水下机器人的万向驱动机构

Also Published As

Publication number Publication date
FR795366A (fr) 1936-03-12

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