Rotary kinetic fluid motors or pumps – Method of operation
Reexamination Certificate
2000-06-16
2002-08-27
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Method of operation
C415S118000, C415S119000, C415S914000
Reexamination Certificate
active
06439831
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a method and apparatus for improving the speed and fuel economy of manned and unmanned vehicles and in particular power systems thereof. This invention also relates to a method and apparatus for altering the acoustic signature economy of manned and unmanned vehicles.
BACKGROUND OF THE INVENTION
A cross section of a sub surface vessel known in the art is shown in FIG.
1
. The drive train described within
FIG. 1
is also applicable to surface vessels. It is common for surface and subsurface vessels to be powered by a nuclear or diesel driven electric generator or batteries. The propulsion system of the subsurface vessel
1
includes a nuclear or diesel driven electric generator or battery pack
2
which produces either alternating current or direct current electricity except for batteries which only produce direct current. The alternating current or direct current electricity is in turn delivered to the motor
8
by means of wires
6
and
7
. The output shaft
9
of the electric motor
8
is supported by means of a bearing
10
and has a propeller
11
affixed to it. When AC or DC electricity is applied to the electric motor
8
, the shaft of an electric motor
9
begins to rotate and accelerate to a uniform rotational velocity (rpm) thereby causing the propeller
11
to spin. The rotation of the propeller
11
in turn causes the fluid
12
within which the vessel
1
is suspended to be ejected from the propeller
11
in a direction
13
when the vessel
1
wishes to move forward in the direction
14
. By reversing the direction of rotation of the electric motor
8
the fluid
12
within which the vessel is suspended would flow in direction
10
from the propeller
11
thereby causing the vessel
1
to move in the direction
13
. In this arrangement, the cavitation of the propeller and the mechanical resonance of the generator, electric motor and associated mechanical linkages produce a distinct and characteristic noise “signature” which can be used to identify the vessel and determine its approximate speed. Furthermore, this system cannot achieve a thermodynamic efficiency in excess of 40%, and typically less than 30%.
A cross section of another design of subsurface vessel known in the art is shown in FIG.
2
. The drive train described within
FIG. 2
is also applicable to surface vessels. It is common for surface and subsurface vessels to be powered by a nuclear or diesel driven electric generator or batteries. The propulsion system of the subsurface vessel
15
includes a nuclear or diesel driven electric generator
16
which produces either alternating current or direct current electricity except for batteries which only produce direct current. The alternating current or direct current electricity is in turn delivered to the motor
17
by means of wires
18
and
19
. The output shaft
20
of the electric motor
17
is coupled to a clutch
21
which selectively engages and disengages the electric motor
17
from the gear box
24
. The output shaft
23
the clutch
21
is coupled with the gear box
24
whose output shaft
25
has the propeller
22
affixed thereto. A bearing
26
supports the output shaft from the gear box
24
. The purpose of the gear box
24
is to reduce the high rotational speed from the shaft
20
of the motor
17
to a rotational speed suitable for driving the propeller
22
. When AC or DC electricity is applied to the electric motor
17
, the shaft of a electric motor
20
begins to rotate and accelerate to a uniform rotational velocity (rpm). When the clutch
21
is engaged the rotational energy of the electric motor is transferred to the gear box
24
by means of shaft
23
which in turn causes shaft
25
to spin which thereby causes the propeller
22
to spin. The rotation of the propeller
22
in turn causes the fluid
27
within which the vessel
15
is suspended to be ejected from the propeller
22
in a direction
28
when the vessel
15
wishes to move forward in the direction
29
. By reversing the direction of rotation of the electric motor
17
the fluid
27
within which the vessel
15
is suspended would flow in direction
29
from the propeller
22
thereby causing the vessel
15
to move in the direction
28
. Alternately, the position of the clutch
21
and the gear head
24
may be reversed in their mechanical connection. In this embodiment, the cavitation of the propeller and the mechanical resonance of the generator, electric motor and associated mechanical linkages produce a distinct and characteristic noise “signature” which can be used to identify the vessel and determine its approximate speed. Furthermore, this system cannot be achieve a thermodynamic efficiency in excess of 40%, and typically less than 30%.
A cross section of a design for a surface vessel known in the art is shown in FIG.
3
. The drive train described within
FIG. 3
could be applicable to subsurface and other vessels. It is common for surface vessels to be powered by diesel or gasoline engine
30
. The propulsion system of the surface vessel
30
includes a diesel or gasoline engine
31
. The output shaft
32
of the diesel or gasoline engine
31
is coupled to a clutch
33
which selectively engages and disengages the diesel or gasoline engine
31
from the gear box
33
. The output shaft
34
of the clutch
32
is coupled with the gear box
35
whose output shaft
36
has the propeller
37
affixed thereto. A bearing
38
supports the output shaft
36
from the gear box
35
. The purpose of the gear box
35
is to reduce the high rotational speed from the shaft
20
of the diesel or gasoline engine
31
to a rotational speed suitable for driving the propeller
37
. When the diesel or gasoline engine
31
is started, the output shaft
32
of the diesel or gasoline engine
31
begins to rotate and accelerate to a uniform rotational velocity (rpm). When the clutch
33
is engaged the rotational energy of the diesel or gasoline engine
31
is transferred to the gear box
35
by means of shaft
34
which in turn causes shaft
36
to spin which thereby causes the propeller
37
to spin. The rotation of the propeller
37
in turn causes the fluid
39
within which the vessel
30
is immersed to be ejected from the propeller
37
in a direction
40
when the vessel
30
wishes to move forward in the direction
41
. By reversing the direction of rotation of the propeller
37
, the fluid
39
within which the vessel
30
is immersed would flow in direction
41
from the propeller
37
thereby causing the vessel
30
to move in the direction
40
. In this arrangement, the cavitation of the propeller and the mechanical resonance of the generator, electric motor and associated mechanical linkages produce a distinct and characteristic noise “signature” which can be used to identify the vessel and determine its approximate speed. Alternately, the position of the clutch
33
and the gear head
35
may be reversed in their mechanical connection. Furthermore, this system cannot be achieve a thermodynamic efficiency in excess of 40%, and typically less than 30%.
A cross section of a design for a torpedo known in the art is shown in FIG.
4
. It is common for a torpedo to be powered by a combustion engine
42
which receives self-oxidizing fuel from a fuel reservoir
43
by means of a fuel pump
44
which delivers a steady stream of fuel through tube
45
. The combustion engine
42
causes a constant rotation of the shaft
46
which is supported by bearing
47
and to which propeller
48
is affixed. The guidance and control systems of such a device are not of concern in this invention and any known in the art may be used. When the combustion engine
42
is started, the output shaft
46
begins to rotate and accelerate to a uniform rotational velocity (rpm). The rotational energy of the combustion engine
42
is transferred to the propeller
48
by means of shaft
46
. The rotation of the propeller
48
in turn causes the fluid
49
within which the torpedo
42
is immersed to be ejected from the propeller
48
in a directio
Bereskin & Parr
da Costa Philip Mendes
Look Edward K.
Nguyen Ninh
LandOfFree
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