US 12,134,298 B2
High efficiency centrifugal blower
Srikanth Kanduri, Hyderabad (IN); Ramesh Vedula, Bengaluru (IN); Preman Reynold Joseph, Hyderabad (IN); Sudalairaja Madasamy, Eral (IN); and Ajaya Kumar, Minneapolis, MN (US)
Assigned to THERMO KING LLC, Minneapolis, MN (US)
Filed by THERMO KING LLC, Minneapolis, MN (US)
Filed on May 27, 2022, as Appl. No. 17/826,650.
Claims priority of application No. 202141023784 (IN), filed on May 28, 2021.
Prior Publication US 2022/0379684 A1, Dec. 1, 2022
Int. Cl. B60H 1/00 (2006.01); F04D 17/08 (2006.01); F04D 29/28 (2006.01)
CPC B60H 1/00471 (2013.01) [F04D 17/08 (2013.01); F04D 29/281 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A centrifugal blower, comprising:
a saucer-shaped blower base;
multiple blades fastened to the blower base; and
a casing to provide surrounding coverage to the multiple blades with a clearance between a tip of each of the multiple blades and an internal surface of a top of the casing,
wherein each of the multiple blades is trimmed near a leading edge thereof to create a slant face to provide clearance for servicing from an upper portion of the casing, with the top of the casing removed, to the blower base,
wherein the casing is disposed within the centrifugal blower,
wherein the centrifugal blower is housed within an evaporator,
wherein the blower base and the casing are fastened together by pins projecting from a bottom portion of at least some of the blades,
wherein a diameter of the centrifugal blower is 430 mm, and
wherein an axial center of the centrifugal blower is 32 mm towards a back portion of the evaporator.