US 12,486,847 B2
Electric pump
Takuya Nakano, Nagano (JP); Norihiro Sudo, Nagano (JP); Akihiro Takeda, Nagano (JP); and Yuki Sakyu, Nagano (JP)
Assigned to SHINANO KENSHI CO., LTD., Ueda (JP)
Filed by SHINANO KENSHI CO., LTD., Ueda (JP)
Filed on Feb. 22, 2024, as Appl. No. 18/584,554.
Claims priority of application No. 2023-026318 (JP), filed on Feb. 22, 2023.
Prior Publication US 2024/0280106 A1, Aug. 22, 2024
Int. Cl. F04D 29/18 (2006.01); F04C 29/00 (2006.01); F04D 29/08 (2006.01); F04D 29/40 (2006.01)
CPC F04C 29/0064 (2013.01) [F04D 29/08 (2013.01); F04D 29/18 (2013.01); F04D 29/40 (2013.01); F04C 2240/20 (2013.01); F04C 2240/40 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An electric pump comprising:
a case;
a motor that includes a rotor and a stator and is surrounded by the case; and
a partition member that partitions the rotor and the stator,
wherein
the case includes an introduction pipe portion for introducing a fluid and a discharge pipe portion for discharging the fluid,
the rotor is disposed in a space surrounded by the case, the stator, and the partition member and communicating with the introduction pipe portion and the discharge pipe portion,
the rotor includes a first blade member, a second blade member, and a relay portion,
an outer diameter of the relay portion is smaller than an outer diameter of at least one of the first and second blade members,
the relay portion is positioned between the first blade member and the second blade member,
each of the introduction pipe portion and the discharge pipe portion is located closer to the first blade member than to the second blade member,
the space is sealed by the case and the partition member except at the introduction pipe portion and the discharge pipe portion, and
the second blade member is surrounded by the partition member.