US 11,815,261 B2
Steam generator, and system for steam cleaning workpieces
Antonio Alvarez, Stolberg (DE); and Dietmar Sonntag, Simmerath (DE)
Assigned to ELWEMA AUTOMOTIVE GMBH, Ellwangen (DE)
Appl. No. 16/756,033
Filed by ELWEMA Automotive GmbH, Ellwangen (DE)
PCT Filed Nov. 2, 2018, PCT No. PCT/EP2018/080070
§ 371(c)(1), (2) Date Apr. 14, 2020,
PCT Pub. No. WO2019/086641, PCT Pub. Date May 9, 2019.
Claims priority of application No. 10 2017 125 666.0 (DE), filed on Nov. 2, 2017.
Prior Publication US 2020/0309362 A1, Oct. 1, 2020
Int. Cl. F22B 1/28 (2006.01); B08B 3/02 (2006.01); B08B 3/14 (2006.01); F22B 27/16 (2006.01); F22B 37/60 (2006.01); F22G 1/16 (2006.01)
CPC F22B 1/287 (2013.01) [B08B 3/02 (2013.01); B08B 3/14 (2013.01); F22B 27/16 (2013.01); F22B 37/60 (2013.01); F22G 1/165 (2013.01); B08B 2203/00 (2013.01); B08B 2230/01 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A steam generator (1) for generating dry steam for an automated industrial cleaning system (30) for cleaning workpieces by means of a steam jet, comprising
a steam generator container with a water inlet (5) and a steam outlet (9);
a heatable core (2) of thermally conductive material arranged in the steam generator container and having an inner primary cavity and an inner surface (2A);
a primary heating device (8) for heating the core (2);
a spray nozzle (6) connected to the water inlet (5) and arranged to spray water in a dosed manner onto the inner surface (2A) of the core (2); and
an additional supplementary heating device (10) provided in the steam generator container upstream of the steam outlet (9) and at least partially inside the core (2);
wherein
the supplementary heating device (10) comprises a heatable body (10A) having a secondary cavity (11) through which steam (13) generated upstream in the primary cavity of the core (2) can flow for post-heating it to dry steam (14) and which is connected at an inlet side via a passage opening (12) to the primary cavity of the core (2) and at an outlet side to the steam outlet (9).