US 11,753,120 B2
Hydrojet propulsion system
Donald Lewis Montague, Paia, HI (US); Peter Jell, Breitbrunn (DE); Merten Stroetzel, Pacific Palisades, CA (US); Joseph Andrew Brock, Alameda, CA (US); and Matthew Campbell Greaves, Corinda (AU)
Assigned to Kai Concepts, LLC, Alameda, CA (US)
Filed by Kai Concepts, LLC, Alameda, CA (US)
Filed on Nov. 1, 2022, as Appl. No. 17/978,898.
Application 17/978,898 is a continuation of application No. 17/522,260, filed on Nov. 9, 2021, granted, now 11,485,457.
Claims priority of provisional application 63/210,211, filed on Jun. 14, 2021.
Prior Publication US 2023/0071780 A1, Mar. 9, 2023
Int. Cl. B63B 34/10 (2020.01); B63B 34/45 (2020.01); B63H 21/17 (2006.01); B63H 1/14 (2006.01); B63B 32/10 (2020.01)
CPC B63B 34/10 (2020.02) [B63B 32/10 (2020.02); B63B 34/45 (2020.02); B63H 1/14 (2013.01); B63H 21/17 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A personal watercraft comprising:
a flotation portion having a top surface and a bottom surface;
a strut extending away from the bottom surface of the flotation portion;
a motor pod disposed along the strut;
an electric motor operably coupled to a driveshaft, wherein the electric motor is disposed within the motor pod;
a hydrojet unit attached rearward of the motor pod, wherein the hydrojet unit further comprises:
an inlet portion comprising:
a substantially conical attachment interface attached to a rear portion of the motor pod; and
one or more fins extending outwardly from the attachment interface; and
a housing removably coupled to the inlet portion, the attachment interface intermediate the motor pod and the housing, the housing having an inlet region diameter greater than an outer diameter of the motor pod, the housing defining a fluid flow path from the inlet region to an outlet region;
an impeller coupled to the driveshaft and disposed within the housing; and
a stator disposed within the housing rearward of the impeller.