CA2188930C - Water jet propelled kayak - Google Patents
Water jet propelled kayakInfo
- Publication number
- CA2188930C CA2188930C CA002188930A CA2188930A CA2188930C CA 2188930 C CA2188930 C CA 2188930C CA 002188930 A CA002188930 A CA 002188930A CA 2188930 A CA2188930 A CA 2188930A CA 2188930 C CA2188930 C CA 2188930C
- Authority
- CA
- Canada
- Prior art keywords
- hull
- kayak
- water
- kayak according
- foot
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/20—Canoes, kayaks or the like
Abstract
A kayak having a kayak-style hull (2) with one or more cockpits (6), and an inboard power device that accelerates water and directs it out a steerable stern nozzle (4). In the embodiment described, an internal combustion engine (18) drives a water impeller that receives water from an intake (32) communicating with a body of water on which the kayak is located. The stern nozzle (4) laterally redirects the accelerated water from the impeller over an angular range centered on a long axis of the hull (2). The operator controls the angle of the stem nozzle (4) by a foot pedal (12) accessible to an operator in the cockpit (6). The kayak also has a foot pedal (14) for controlling a throttle of the engine (18).
Description
.
(J
.n o ~n o Ul .
o m ~ (D P . (D (- P 3 rt ~ , p, ~ ~ ~ (D ~ -- P ' J ,~
P ~ ~' O ~ P ~ D ;7i' J ~ I' Pl ~ ~ p. Ib Pl ~ ~S ~ ~ ~ ' O rt S t L~
(D ~ 1~ It rt p (D D p H, ~ ~ ~ D 1 ~ pD ~' ~ rt wo ss/29092 2 1 8 ~ q 3 0 ~ S9 ~
to white water ~ nfl~ t i ~7nq .
~n operator can u3e a j et kayak according to this invention in white water r ~nfl; tj ~nq because it 6till has a low center of gravity which is an advantageous kayak characteri3tic that has been proven over centuries with traditional non-power kayaks. Moreover the same btretch of white water can be re-run ;nfl~f;n;tely without hauling the craft over land because of its ~r~h;l ;ty to go upstream under power. Thus by re-runs an operator can travel the same amount of white water in a short distance from a l ~lln~hing area as would otherwise require transporting the kayak to long white water runs, normally in wilderness areas.
Even though many variations of "jet skis" and ~Iwave runners" have evolved from the original jet ski designs, a jet kayak according to this invention has a si~n; ~ nt advantage over them in that it gives the operator the nf.~ 5S~ry stability to negotiate the craft in white water conditions.
Other advantages and attributes of this invention will be readily discprn~hl~ upon a reading of the text hereinafter.
S~LaRY OF l~IE lNV
An object of this invention is to provide a water jet propelled kayak.
A further object of this invention i8 to provide a kayak that can be used and enj oyed as are conventional kayaks, but that has an inboard engine ~driving a water impeller for propulsion, particularly for upstream propulsion.
A further object of this invention is to provide a water ~et propelled kayak that can be steered, when under power, by _ . _ _ . . .. ... _ _ . _ . : . _ .. . .: . .... . .
21 8~930 ~ W095/29092 P~ J 'C'159 manipulation of a foot corltrol, e.g. a foot pedal.
These objects, and other objectq expressed or implied in this document, are accomplished by a kayak having: (a) a kayak ~tyle hull ~l~fin;n~ an operator's cockpit and having a stern, (b) an engine driving a water impeller for accelerating water sternward (toward the stern), both in a watertight compartment aft of the cockpit, (c) a water intake communicating with a body of water on which the kayak is located for providing water to the water impeller, (d) a qtern nozzle at least partially below the water level of the body of water for laterally redirecting the accelerated water over an angular range centered on a long axis of the hull, and a foot pedal i~rcPs~ihle to an operator in the cockpit for selectively controlling the angular position, within the angular range, of the stern nozzle. The kayak also has a foot pedal for controlling a throttle of the engine.
~17TF!~ n~ OP TEI3 DRAWT~
Figure l is a plan view of a water j et propelled kayak according to this invention with portions of the hull cut away to show the propulsion system.
Figure 2 is a side elevational view of the kayak of Fig.
l, again with portions of the hull cut away to show the propul q ion system .
DES~:KI~ ~ l OF l~IE E~k~
Referring to Figures l and 2, an illustrated kayak has a hull 2 of generally traditional kayak form except for a water j et nozzle 4 at its stern. It has a cockpit 6 with a cuqhion 8 and backrest lO. As illustrated the cockpit .
Wo gS/29092 2 1 8 8 q 3 3 r~
accommodates one operator, but it can be built for a two person operation. The flexil:)le enclosure for making the cockpit watertight is not shown f or clarity . When under power, the operator can co~trol the kayak by use of two S control pedals - a steering pedal 12 and a throttle pedal 14.
The operator can also use a kayak paddle in ~_ ' ;n~t;on with the pedal controls ~or more precise maneuvering.
Re~erring again to Figures 1 and 2, lmmediately af t of the cockpit is a water-tight compartment separated from the 10 cockpit by a blllkl~p~rl that serves also as a firewall. Within the compartment is a fuel tank 16 and immediately aft of the fuel tank is a power plant. The power plant includes an engine 18, a carburetor 20, an ignition system 22, and an exhaust and water box 24. The engine is preferably a two-15 stroke, internal combustion engine having at least twocylinders. The engine turns a drive shaft 26, through a coupling 28, which in turn transfers rot~t;~n~l power to an impeller in an impeller housing 34. The coupling can be direct drive or can incorporate a torque converter. The 20 impeller receives water via a water intake duct 32 and accelerates the water and ~ tes it through an impeller duct 36 to a fllnn~l ;n~ jet~ nozzle 38. Ihe water is further accelerated as it is funneled by the jet nozzle to the stern nozzle 4 which is a steering ~ozzle. The high velocity water 25 leaving the steering nozzle propels the kayak in reaction.
Referring again to Figures 1 and 2, the throttle pedal 14 is li~ked to the carburetor 20 via a first control cable 40. The steering pedal 12 is linked to the steering noz~le _ . _ _ _ _ . . .. _ .. . . . _ _ _ _ . . ... ... . .
~ WO9S/29092 1~ 5r515~
4 via second control cable 42. Preferably the~e are "Morse"
type cables. The steering nozzle is preferably protected from impact by foreign objects by top and bottom running plates, 44 and 46. The steering nozzle i8~ however, free to rotate 5 laterally in either direction within an angular range under control of the steering pedal . As previously r t i~n~d, steering of the kayak under power can be by a combination of the steering pedal and a traditional kayak paddle. This gives the operator much more positive maneuvering control than 10 either one alone. Also, the throttle pedal can be used for additional steering and maneuvering control. In this way an operator hae three positive maneuvering tools rather than just the paddle as with non-powered kayaks. Thi~ positive control combination makes white-water kayaking much eafer because 15 ob~tacles, such as rocks, can be more easily avoided.
The foregoing description and drawings were given for illustrative purposes only, it being understood that the invention is not limited to the emb~ disclosed, but is ;ntf~nr~ to ernbrace any and all alternatives, equivalents, 20 modifications and re~l, ro~ nt~l of elements falling within the scope of the invention as defined by the following claims.
For example, this invention i5 also well suited for the "eit on~ style of kayak hulls, such as those used for kayaks that are also commonly known as "seagoing~ kayake.
(J
.n o ~n o Ul .
o m ~ (D P . (D (- P 3 rt ~ , p, ~ ~ ~ (D ~ -- P ' J ,~
P ~ ~' O ~ P ~ D ;7i' J ~ I' Pl ~ ~ p. Ib Pl ~ ~S ~ ~ ~ ' O rt S t L~
(D ~ 1~ It rt p (D D p H, ~ ~ ~ D 1 ~ pD ~' ~ rt wo ss/29092 2 1 8 ~ q 3 0 ~ S9 ~
to white water ~ nfl~ t i ~7nq .
~n operator can u3e a j et kayak according to this invention in white water r ~nfl; tj ~nq because it 6till has a low center of gravity which is an advantageous kayak characteri3tic that has been proven over centuries with traditional non-power kayaks. Moreover the same btretch of white water can be re-run ;nfl~f;n;tely without hauling the craft over land because of its ~r~h;l ;ty to go upstream under power. Thus by re-runs an operator can travel the same amount of white water in a short distance from a l ~lln~hing area as would otherwise require transporting the kayak to long white water runs, normally in wilderness areas.
Even though many variations of "jet skis" and ~Iwave runners" have evolved from the original jet ski designs, a jet kayak according to this invention has a si~n; ~ nt advantage over them in that it gives the operator the nf.~ 5S~ry stability to negotiate the craft in white water conditions.
Other advantages and attributes of this invention will be readily discprn~hl~ upon a reading of the text hereinafter.
S~LaRY OF l~IE lNV
An object of this invention is to provide a water jet propelled kayak.
A further object of this invention i8 to provide a kayak that can be used and enj oyed as are conventional kayaks, but that has an inboard engine ~driving a water impeller for propulsion, particularly for upstream propulsion.
A further object of this invention is to provide a water ~et propelled kayak that can be steered, when under power, by _ . _ _ . . .. ... _ _ . _ . : . _ .. . .: . .... . .
21 8~930 ~ W095/29092 P~ J 'C'159 manipulation of a foot corltrol, e.g. a foot pedal.
These objects, and other objectq expressed or implied in this document, are accomplished by a kayak having: (a) a kayak ~tyle hull ~l~fin;n~ an operator's cockpit and having a stern, (b) an engine driving a water impeller for accelerating water sternward (toward the stern), both in a watertight compartment aft of the cockpit, (c) a water intake communicating with a body of water on which the kayak is located for providing water to the water impeller, (d) a qtern nozzle at least partially below the water level of the body of water for laterally redirecting the accelerated water over an angular range centered on a long axis of the hull, and a foot pedal i~rcPs~ihle to an operator in the cockpit for selectively controlling the angular position, within the angular range, of the stern nozzle. The kayak also has a foot pedal for controlling a throttle of the engine.
~17TF!~ n~ OP TEI3 DRAWT~
Figure l is a plan view of a water j et propelled kayak according to this invention with portions of the hull cut away to show the propulsion system.
Figure 2 is a side elevational view of the kayak of Fig.
l, again with portions of the hull cut away to show the propul q ion system .
DES~:KI~ ~ l OF l~IE E~k~
Referring to Figures l and 2, an illustrated kayak has a hull 2 of generally traditional kayak form except for a water j et nozzle 4 at its stern. It has a cockpit 6 with a cuqhion 8 and backrest lO. As illustrated the cockpit .
Wo gS/29092 2 1 8 8 q 3 3 r~
accommodates one operator, but it can be built for a two person operation. The flexil:)le enclosure for making the cockpit watertight is not shown f or clarity . When under power, the operator can co~trol the kayak by use of two S control pedals - a steering pedal 12 and a throttle pedal 14.
The operator can also use a kayak paddle in ~_ ' ;n~t;on with the pedal controls ~or more precise maneuvering.
Re~erring again to Figures 1 and 2, lmmediately af t of the cockpit is a water-tight compartment separated from the 10 cockpit by a blllkl~p~rl that serves also as a firewall. Within the compartment is a fuel tank 16 and immediately aft of the fuel tank is a power plant. The power plant includes an engine 18, a carburetor 20, an ignition system 22, and an exhaust and water box 24. The engine is preferably a two-15 stroke, internal combustion engine having at least twocylinders. The engine turns a drive shaft 26, through a coupling 28, which in turn transfers rot~t;~n~l power to an impeller in an impeller housing 34. The coupling can be direct drive or can incorporate a torque converter. The 20 impeller receives water via a water intake duct 32 and accelerates the water and ~ tes it through an impeller duct 36 to a fllnn~l ;n~ jet~ nozzle 38. Ihe water is further accelerated as it is funneled by the jet nozzle to the stern nozzle 4 which is a steering ~ozzle. The high velocity water 25 leaving the steering nozzle propels the kayak in reaction.
Referring again to Figures 1 and 2, the throttle pedal 14 is li~ked to the carburetor 20 via a first control cable 40. The steering pedal 12 is linked to the steering noz~le _ . _ _ _ _ . . .. _ .. . . . _ _ _ _ . . ... ... . .
~ WO9S/29092 1~ 5r515~
4 via second control cable 42. Preferably the~e are "Morse"
type cables. The steering nozzle is preferably protected from impact by foreign objects by top and bottom running plates, 44 and 46. The steering nozzle i8~ however, free to rotate 5 laterally in either direction within an angular range under control of the steering pedal . As previously r t i~n~d, steering of the kayak under power can be by a combination of the steering pedal and a traditional kayak paddle. This gives the operator much more positive maneuvering control than 10 either one alone. Also, the throttle pedal can be used for additional steering and maneuvering control. In this way an operator hae three positive maneuvering tools rather than just the paddle as with non-powered kayaks. Thi~ positive control combination makes white-water kayaking much eafer because 15 ob~tacles, such as rocks, can be more easily avoided.
The foregoing description and drawings were given for illustrative purposes only, it being understood that the invention is not limited to the emb~ disclosed, but is ;ntf~nr~ to ernbrace any and all alternatives, equivalents, 20 modifications and re~l, ro~ nt~l of elements falling within the scope of the invention as defined by the following claims.
For example, this invention i5 also well suited for the "eit on~ style of kayak hulls, such as those used for kayaks that are also commonly known as "seagoing~ kayake.
2 5 I CLAIM:
Claims (18)
1. A powered kayak comprising:
(a) a kayak-style hull defining an operator's cockpit and having a stern, (b) means, disposed within the hull aft of the cockpit, for accelerating water sternward, (c) intake means, communicating with a body of water on which the kayak is located, for providing water to the means for accelerating water, (d) means, at the stern of the hull and at least partially below the water level of the body of water, for laterally redirecting the accelerated water over an angular range centered on a long axis of the hull, and (f) means, accessible to an operator in the cockpit, for selectively controlling the angular position within said angular range of the means for redirecting the accelerated water.
(a) a kayak-style hull defining an operator's cockpit and having a stern, (b) means, disposed within the hull aft of the cockpit, for accelerating water sternward, (c) intake means, communicating with a body of water on which the kayak is located, for providing water to the means for accelerating water, (d) means, at the stern of the hull and at least partially below the water level of the body of water, for laterally redirecting the accelerated water over an angular range centered on a long axis of the hull, and (f) means, accessible to an operator in the cockpit, for selectively controlling the angular position within said angular range of the means for redirecting the accelerated water.
2. The kayak according to claim 1 wherein the hull is a displacement hull.
3. The kayak according to claim 1 wherein the hull is a double-ended displacement hull.
4. The kayak according to claim 1 further comprising:
(a) impeller means, disposed in the hull forward of the stern, for accelerating the water to the means for redirecting the water, (b) a fuel consuming engine disposed in the hull for turning the impeller means, (c) a fuel supply disposed in the hull, and (d) throttle means, accessible to an operator in the cockpit, for regulating the flow of fuel from the supply to the engine.
(a) impeller means, disposed in the hull forward of the stern, for accelerating the water to the means for redirecting the water, (b) a fuel consuming engine disposed in the hull for turning the impeller means, (c) a fuel supply disposed in the hull, and (d) throttle means, accessible to an operator in the cockpit, for regulating the flow of fuel from the supply to the engine.
5. The kayak according to claim 4 wherein the hull is a displacement hull.
6. The kayak according to claim 4 wherein the hull is a double-ended displacement hull.
7. The kayak according to claim 1 further comprising at least one protective plate for shielding the means for redirecting the accelerated water.
8. The kayak according to claim 4 further comprising at least one protective plate f or shielding the means for redirecting the accelerated water.
9. The kayak according to claim 1 further comprising means for operating the means for selectively controlling the angular position by foot.
10. The kayak according to claim 1 further comprising further comprising foot pedal means for selectively controlling the angular position by foot.
11. The kayak according to claim 4 further comprising means for operating the throttle means by foot.
12. The kayak according to claim 4 further comprising foot pedal means for operating the throttle means.
13. The kayak according to claim 9 further comprising means for operating the throttle means by foot.
14. The kayak according to claim 10 further comprising means for operating the throttle means by foot.
15. The kayak according to claim 1 further comprising a watertight compartment means in which the means for accelerating water sternward is disposed.
16. The kayak according to claim 15 wherein the watertight compartment is defined by the hull, an aft deck and a bulkhead extending between the aft deck and the hull.
17. The kayak according to claim 4 further comprising a watertight compartment means in which the engine is disposed.
18 . The kayak according to claim 17 wherein the watertight compartment is defined by the hull, an aft deck and a bulkhead extending between the aft deck and the hull.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23370994A | 1994-04-26 | 1994-04-26 | |
| US08/233,709 | 1994-04-26 | ||
| PCT/US1995/005159 WO1995029092A1 (en) | 1994-04-26 | 1995-04-26 | Water jet propelled kayak |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2188930A1 CA2188930A1 (en) | 1995-11-02 |
| CA2188930C true CA2188930C (en) | 1999-05-11 |
Family
ID=22878384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002188930A Expired - Fee Related CA2188930C (en) | 1994-04-26 | 1995-04-26 | Water jet propelled kayak |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2366095A (en) |
| CA (1) | CA2188930C (en) |
| WO (1) | WO1995029092A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110573219B (en) * | 2017-03-09 | 2021-10-29 | B·C·罗宾逊 | Underwater propelling device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3369518A (en) * | 1966-11-03 | 1968-02-20 | Clayton J. Jacobson | Aquatic vehicle |
| US4229850A (en) * | 1978-08-03 | 1980-10-28 | Pierre Arcouette | Kayak |
| US4690649A (en) * | 1985-04-15 | 1987-09-01 | Zeimet Richard E | Center stern outboard motor mount for double-end canoes |
-
1995
- 1995-04-26 WO PCT/US1995/005159 patent/WO1995029092A1/en active Application Filing
- 1995-04-26 CA CA002188930A patent/CA2188930C/en not_active Expired - Fee Related
- 1995-04-26 AU AU23660/95A patent/AU2366095A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2188930A1 (en) | 1995-11-02 |
| WO1995029092A1 (en) | 1995-11-02 |
| AU2366095A (en) | 1995-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130426 |