Key information

Title
A clamp bracket for supporting an electric outboard motor, and an electric outboard motor comprising such a clamp bracket
Application number
20211365
Case type
National
Status
06.03.2023 Patent meddelt (B1)
Filed
12.11.2021
Effective date
12.11.2021
Publicly available
06.03.2023
Next annual fee due
30.11.2026
Applicant
EVOY AS (NO)
Owner
EVOY AS (NO)
Inventor
Audun Magne Askeland (NO) et al.
Agent
ACAPO ONSAGERS AS (NO)
Granted
06.03.2023
Patent number
346932
Expiry date
12.11.2041

Abstract and drawing

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content.
Disclosed is a clamp bracket (20) for supporting an electric outboard motor (30) mountable to a boat (10), wherein the clamp bracket (20) comprises a cooling water intake (22) for supply of external cooling water from water (16) surrounding the boat (10) and to the electric outboard motor (30). Also disclosed is an electric outboard motor (30) comprising such clamp bracket (20).

Publications

Latest published versionB1A1

Documents

 Expand Download files (21)
Date
 Date Doc. No. Process Case number In/Out Journal description To/from
 04.10.2023 09-01 Saksbehandling 20211365(346932) UT PT Varsel om betaling av første årsavgift (3317) (PT20211365) ACAPO AS
 10.03.2023 08-01 Saksbehandling 20211365(346932) UT PT Registreringsbrev nasjonal patent (15) (PT20211365)
09.12.2022 07-01 Saksbehandling 20211365 UT PT Meddelelse om patent ACAPO AS
 28.09.2022 06-04 Saksbehandling 20211365 INN P20310NO00 Tekst for meddelelse ACAPO AS
 28.09.2022 06-03 Saksbehandling 20211365 INN P20310NO00 Norske krav for meddelse ACAPO AS
 28.09.2022 06-02 Saksbehandling 20211365 INN P20310NO00 Besvarelse ACAPO AS
 28.09.2022 06-01 Saksbehandling 20211365 INN Korrespondanse (Hovedbrev inn) ACAPO AS
 20.05.2022 05-02 Saksbehandling 20211365 UT PT report 04:39:12
20.05.2022 05-01 Saksbehandling 20211365 UT Realitet patent ACAPO AS
 10.01.2022 04-06 Saksbehandling 20211365 INN P20310NO00 Overdragelse Sten ACAPO AS
 10.01.2022 04-05 Saksbehandling 20211365 INN P20310NO00 Overdragelse Marius ACAPO AS
 10.01.2022 04-04 Saksbehandling 20211365 INN P20310NO00 Overdragelse Leif ACAPO AS
 10.01.2022 04-03 Saksbehandling 20211365 INN P20310NO00 Overdragelse Carl Marius ACAPO AS
 10.01.2022 04-02 Saksbehandling 20211365 INN P20310NO00 Overdragelse Audun ACAPO AS
 10.01.2022 04-01 Saksbehandling 20211365 INN Korrespondanse (Hovedbrev inn) ACAPO AS
 17.11.2021 03-01 Saksbehandling 20211365 UT Formalia 1 ACAPO AS
 17.11.2021 02-01 Saksbehandling 20211365 UT Infobrev til oppfinner ACAPO AS
 12.11.2021 01-04 Saksbehandling 20211365 INN P20310NO00 patentsøknad ACAPO AS
 12.11.2021 01-03 Saksbehandling 20211365 INN P20310NO00 figurer ACAPO AS
 12.11.2021 01-02 Saksbehandling 20211365 INN Generell fullmakt - Evoy AS ACAPO AS
 12.11.2021 01-01 Saksbehandling 20211365 INN Søknadsskjema Patent ACAPO AS

Description, claims and drawings

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content. Description
Field of the inventionThe present invention relates to a clamp bracket for supporting an electric outboard motor mountable to a boat, and an electric outboard motor comprising such a clamp bracket.Background of the inventionExisting technology for providing water cooling on traditional internal combustion outboard engines as well as current engines refitted for electrical powerheads, rely on seawater inlet(s) located in a lower leg of the motor.In order to eliminate the chances of hitting bottom with an outboard motor, the motor can be tilted up to an elevated position. This helps when traveling through shallow waters where there may be debris that could potentially damage the motor as well as the propeller. The motor can also be tilted completely out of the water to prevent such as barnacle growth when harboured. In this dry position, the outboard water intake will also be rendered inoperative.When not in use the outboard motor is normally tilted up to an elevated position, which may be a problem for particularly electric outboard motors.Disclosure of the state of artCooling systems for marine inboard and outboard motors are well known.JP2014239607 A2 disclose a battery cooling mechanism for electric outboard motor, wherein the battery pack is placed within the boat and receives externally supplied tap water as cooling water.US2015232163 A1 disclose a boat drive with a cooling circuit. The power supply to the electric motor and to the motor electronics is realized by means of a battery which is arranged at a distance from the outboard drive, in the interior of the boat. Water is drawn in via a coolant inlet and flows through a line section and cools the electric motor and the motor electronics, and subsequently the battery. The heated coolant is then recirculated and discharged via a coolant outlet.Reference is also made to JPH07–323894 A, US 5045001 A, US 5304079 A and JP2010–228534 A. Objects of the present inventionThe present invention adds one or several submerged water intakes to an electric outboard motor, to prevent lack of cooling for internal components. The water intake can be fitted with strainers to prevent foreign objects to be let into the cooling circuit(s).Electric outboard motor operation depends on reliable supply of cooling water from submerged water inlets. The present invention solves the potentially hazardous condition of overheating batteries and/or internal components of an electric outboard motor.Further, the benefit with the present invention is that it is all mounted on the electric outboard motor or the associated clamp bracket and there is thus no need for seawater intake through the hull of the boat.Electrical outboard engines often rely on cooling the batteries or other components for some time after operation or when charging. Tilting the water intake out of the water will prevent component cooling and could make charging the batteries hazardous.Summary of the inventionAccording to a first aspect of the invention, a clamp bracket is provided for supporting an electric outboard motor mountable to a boat, wherein the clamp bracket comprises a cooling water intake for supply of external cooling water from water surrounding the boat and to the electric outboard motor.The cooling water intake can in a first embodiment be an internally mounted tube extending through a boring running from an upper part of the clamp bracket and to a lower part of the clamp bracket.The cooling water intake can in a second embodiment be an externally mounted tube connected between an upper part of the clamp bracket and a lower part of the clamp bracket. The tube of the cooling water intake can be connected externally to the clamp bracket by clamps.The cooling water intake comprises a tube running down into the surrounding water. A lower part of the tube to the cooling water intake can comprise a strainer.At least the lower part of the tube to the cooling water intake can be extendable.According to a second aspect of the invention, an electric outboard motor is provided supported by such a clamp bracket, wherein the cooling water intake of the clamp bracket is connected to a motor housing of the electric outboard motor, and wherein the motor housing of the electric outboard motor comprises a three-way selector valve for switching supply of cooling water to a cooling circuit between the cooling water intake of the clamp bracket and a cooling water intake in a lower leg of the electric outboard motor.The motor housing of the electric outboard motor may further comprise an electrically driven displacement pump to draw water through the cooling water intake of the clamp bracket.The three-way valve is preferably arranged to supply cooling water to the cooling circuit from the cooling water intake of the clamp bracket when the electric outboard motor is tilted up, and to supply cooling water to the cooling circuit from the cooling water intake in the lower leg of the electric outboard motor when the electric outboard motor is tilted down into the water.The motor housing of the electric outboard motor may comprise one or more batteries, charger and/or other water-cooled components.Description of the figuresEmbodiments of the present invention will now be described, by way of example only, with reference to the following figures, wherein:Figure 1 shows an electric outboard motor mounted by a clamp bracket to an aft end of a boat.Figure 2 shows the outboard motor of figure 1 tilted out of the water.Figures 3a and 3b show a first embodiment of a clamp bracket for the outboard motor.Figures 4a and 4b show a second embodiment of a clamp bracket for the outboard motor. Description of preferred embodiments of the inventionFigure 1 and 2 show schematically an electric outboard motor 30 mounted by a motor mounting bracket such as a clamp bracket 20 to a transom 12 on an aft end of a boat 10. The boat 10 is shown floating in a body of water 16. In figure 1 the electric outboard motor 30 is tilted down into the surrounding water 16, and in figure 2 the electric outboard motor 30 is tilted up from the surrounding water 16. The electric outboard motor 30 comprises a motor housing 38 accommodating one or more batteries to power the motor and a charger for charging the battery. The motor housing 38 may also accommodate other water-cooled components and regular components need for driving the electrical outboard motor 30.The electric outboard motor 30 further comprises in a known manner a lower leg 36 with a propeller 40 and a cooling water intake 32 for supply of cooling water when the electric outboard motor 30 is tilted down into the surrounding water 16. The cooling water intake 32 in the lower leg 36 can be said to be a first cooling water intake.Traditionally electric outboard motors rely on seawater intake through the cooling water intake 32 at the lower leg 36, but this is above the waterline when the motor is tilted up during stay in for instance harbor. To cool the batteries, charger and/or other water-cooled components when the electric outboard motor 30 is tilted up, the present invention uses a three-way selector valve 34 in combination with a second cooling water 22 intake in the clamp bracket 20 to supply external cooling water to a cooling circuit in the motor housing 38. The cooling circuit is not shown, but the arrows in figures 1 and 2 indicates the supply of cooling water to the cooling circuit. The benefit with this solution is that it is all mounted on the electric outboard motor 30 and there is no need for seawater intake through the hull of the boat 10.At the electric outboard motor 30, the cooling water intake 22 of the clamp bracket 20 and the cooling water intake 32 in the lower leg 36 are connected to an engine internal arrangement of internal valves and pumps to make the overall system failsafe, depending on which one of the cooling water intakes that is in the submerged position.The three-way selector valve 34 is accommodated in the motor housing 38. The motor housing 38 further comprises an electrically driven displacement pump. The displacement pump is needed to be able to draw the water from below pump level. Figures 3a,3b and 4a,4b show a first and second embodiment of the clamp bracket 20 for the outboard motor 30. The clamp bracket 20 is mountable to the transom 12 on the aft of the boat 10, and supports the electric outboard motor 30.The clamp bracket 20 is as shown in a known manner at least partially U-shaped for mounting to the upper part of the transom 12, and has hinges allowing tilting of the electric outboard motor 30. The clamp bracket 20 comprises a cooling water intake 22, which can be said to be the second cooling water intake, and that runs up to and during use is connected to the three-way selector valve 34 in the motor housing 38.The clamp bracket 20 can however be both have a U-shape or a L-shape (upside down) shape. Can be both clamped to the transom 12 or bolted.In the first embodiment, shown in figures 3a and 3b, the cooling water intake 22 in the clamp bracket 20 is an internal mounted tube running through a boring in the clamp bracket 20 from an upper part to a lower part.In the second embodiment, shown in figures 4a and 4b, the cooling water intake 22 in the clamp bracket 20 is an external mounted tube running on an outside of the clamp bracket 20 from an upper part to a lower part.The lower part 24 of the tube can be expandable and may be a telescopic tube, as shown in figures 3b and 4b, to ensure that the lower part of the tube is inserted in the surrounding water 16.The cooling water intake 22 of the clamp bracket 20 will normally not be used when travelling, at least not at high speeds, as the clamp bracket 20 during high speeds will not be submerged, even with the tube extended.
Claims
Claims1. A clamp bracket (20) for supporting an electric outboard motor (30) mountable to a boat (10), characterized in that the clamp bracket (20) comprises a cooling water intake (22) for supply of external cooling water from water (16) surrounding the boat (10) and to the electric outboard motor (30).2. The clamp bracket (20) according to claim 1, wherein the cooling water intake (22) is an internally mounted tube extending through a boring running from an upper part of the clamp bracket (20) and to a lower part of the clamp bracket (20).3. The clamp bracket (20) according to claim 1, wherein the cooling water intake (22) is an externally mounted tube connected between an upper part of the clamp bracket (20) and a lower part of the clamp bracket (20).4. The clamp bracket (20) according to claim 3, wherein the tube of the cooling water intake (22) is connected externally to the clamp bracket (20) by clamps (26).5. The clamp bracket (20) according to claim 1, wherein the cooling water intake (22) comprises a tube running down into the surrounding water (16).6. The clamp bracket (20) according to claim 5, wherein a lower part (24) of the tube to the cooling water intake (22) comprises a strainer.7. The clamp bracket (20) according to claim 5, wherein at least the lower part (24) of the tube to the cooling water intake (22) is extendable.8. An electric outboard motor (30) supported by a clamp bracket (20) according to any of claims 1-7, characterized in that the cooling water intake (22) of the clamp bracket (20) is connected to a motor housing (38) of the electric outboard motor (30), and wherein the motor housing (38) of the electric outboard motor (30) comprises a three-way selector valve (34) for switching supply of cooling water to a cooling circuit between the cooling water intake (22) of the clamp bracket (20) and a cooling water intake (32) in a lower leg (36) of the electric outboard motor (30).9. The electric outboard motor (30) according to claim 8, wherein the motor housing (38) of the electric outboard motor (30) comprises an electrically driven displacement pump to draw water through the cooling water intake (22) of the clamp bracket (20).10. The electric outboard motor (30) according to claim 8, wherein the three-way valve (34) is arranged to supply cooling water to the cooling circuit from the cooling water intake (22) of the clamp bracket (20) when the electric outboard motor (30) is tilted up, and to supply cooling water to the cooling circuit from the cooling water intake (32) in the lower leg (36) of the electric outboard motor (30) when the electric outboard motor (30) is tilted down into the water (16).11. The electric outboard motor (30) according to claim 8, wherein the motor housing (38) of the electric outboard motor (30) comprises one or more batteries, charger and/or other water-cooled components.Patentkrav1. En klemmebrakett (20) for støtte av en elektrisk utenbordsmotor (30) monterbar på en båt (10), karakterisert ved at klemmebraketten (20) omfatter et kjølevannsinntak (22) for tilførsel av eksternt kjølevann fra vann (16) som omgir båten (10) og til den elektriske motoren (30).2. Klemmebraketten (20) i samsvar med krav 1, hvori kjølevannsinntaket (22) er et internt montert rør som strekker seg gjennom en boring som løper fra en øvre del av klemmebraketten (20) og til en nedre del av klemmebraketten (22).3. Klemmebraketten (20) i samsvar med krav 1, hvori kjølevannsinntaket (22) er et eksternt montert rør forbundet mellom en øvre del av klemmebraketten (20) og en nedre del av klemmebraketten (20).4. Klemmebraketten (20) i samsvar med krav 3, hvori røret til kjølevannsinntaket (22) er koblet eksternt til klemmebraketten (20) ved hjelp av klammer (26).5. Klemmebraketten (20) i samsvar med krav 1, hvori kjølevannsinntaket (22) omfatter et rør som løper ned i omgivende vann (16).6. Klemmebraketten (20) i samsvar med krav 5, hvori en nedre del (24) av røret til kjølevannsinntaket (22) omfatter et filter.7. Klemmebraketten (20) i samsvar med krav 5, hvori i det minste den nedre delen (24) av røret til kjølevannsinntaket (22) er forlengbar.8. En elektrisk utenbordsmotor (30) støttet av en klemmebrakett (20) i samsvar med ett eller flere av kravene 1-7, karakterisert ved at kjølevannsinntaket (22) til klemmebraketten (20) er forbundet med et motorhus (38) til den elektriske utenbordsmotoren (30), og hvori motorhuset (38) til den elektriske utenbordsmotoren (30) omfatter en treveisventil (34) for å fordele tilførsel av kjølevann til en kjølekrets mellom kjølevannsinntaket (22) til klemmebraketten (20) og et kjølevannsinntak (32) i en nedre del (36) av den elektriske utenbordsmotoren (30).9. Den elektriske utenbordsmotoren (30) i samsvar med krav 8, hvori motorhuset (38) til den elektriske utenbordsmotoren (30) omfatter en elektrisk drevet fortrengningspumpe for å trekke vann gjennom kjølevannsinntaket (22) til klemmebraketten (22).10. Den elektriske utenbordsmotoren (30) i samsvar med krav 8, hvori treveisventilen (34) er innrettet for å tilføre kjølevann til kjølekretsen fra kjølevannsinntaket (22) til klemmebraketten (20) når den elektriske motoren er tiltet opp, og å tilføre kjølevann til kjølekretsen fra kjølevannsinntaket (32) i den nedre delen (36) av den elektriske utenbordsmotoren (30) når den elektriske utenbordsmotoren (30) er tiltet ned i vannet (16).11. Den elektriske utenbordsmotoren (30) i samsvar med krav 8, hvori motorhuset (38) til den elektriske utenbordsmotoren (30) omfatter en eller flere batterier, lader og/eller andre vannkjølte komponenter.
Drawings

Priority

No priority

Patent classes

IPC classesB63H 20/28B63H 21/17B63H 20/32F01P 3/20H02K 5/20CPC classesB63H 20/28B63H 21/17B63H 20/32F01P 3/202H02K 5/20

Citations

US 2015/232163 A1 (A1)JP H07–323894 A (A)US 5045001 A (A)US 5304079 A (A)JP 2010–228534 A (A)

Applicants, owners and inventors

Owners
EVOY AS
Hamregata 19 6900 FLORØ NO (KINN Municipality, Vestland county)Org. number: 920430384Inventors
Audun Magne Askeland
Askelandsvegen 128B 5938 SÆBØVÅGEN NO (ALVER Municipality, Vestland county)
Marius Dyrseth
Hamregata 19 6900 FLORØ NO (KINN Municipality, Vestland county)
Sten Inge Hellevang
Brendøyvegen 1 6906 FLORØ NO (KINN Municipality, Vestland county)
Carl Magnus Midtbø
Hamregata 19 6900 FLORØ NO (KINN Municipality, Vestland county)
Leif Arne Stavøstrand
Prof Indrebøgate 10 6900 FLORØ NO (KINN Municipality, Vestland county)

Agent

ACAPO ONSAGERS AS
ACAPO ONSAGERS AS

Org. number: 932214636

Name and address are automatically synchronized with the Brønnøysund Register Centre.

Open in The Brønnøysund Register Centre
Edvard Griegs vei 1 5059 BERGEN NO (BERGEN Municipality, Vestland county)
Org. number: 932214636
Reference: P20310NO00

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