	US 12,104,787 B2
	Grate bar, grate bar arrangement, and method for operating a grate bar arrangement
Ulrich Martin, Munich (DE); Helmut Pupp, Erding (DE); and Max Josef Schoensteiner, Munich (DE)
Assigned to MARTIN GmbH fuer Umwelt- und Energietechnik, Munich (DE)
Filed by MARTIN GmbH fuer Umwelt- und Energietechnik, Munich (DE)
Filed on Aug. 18, 2023, as Appl. No. 18/235,442.
Application 18/235,442 is a division of application No. 17/327,840, filed on May 24, 2021, granted, now 11,906,162.
Claims priority of application No. 10 2020 003 114.5 (DE), filed on May 25, 2020.
Prior Publication US 2023/0392787 A1, Dec. 7, 2023
Int. Cl. F23H 17/12 (2006.01); F23H 17/08 (2006.01)

CPC F23H 17/12 (2013.01) [F23H 17/08 (2013.01); F23H 2900/17002 (2013.01)]

11 Claims

1. A grate bar arrangement (90) comprising at least three grate bars (91, 92, 93) each comprising a running surface (98, 99) and a grate bar head (100, 101), in which arrangement an upper grate bar (93) with its grate bar head (101) is arranged to be movable relative to a lower grate bar (91) in such a way that the grate bar head (101) may slide over a front area (102), and a rear area (103) of the running surface (98, 99) of the grate bar (91), wherein the running surface (98, 99) has air slots (94, 95, 96, 97) in the front and rear areas (102, 103) and the grate bar head (100, 101) is displaceable relative to these air slots (94, 95, 96, 97) in such a way that the opening cross section of all air slots (94, 95, 96, 97) remains constant.