US 11,781,657 B2
3-2 way expansion valve
Daniel Zens, Kreuzau (DE); Toni Spies, Cologne (DE); Marc Graaf, Krefeld (DE); Dominik Wiechard, Cologne (DE); Markus Herzog, Bedburg (DE); and Corinne Le Pellec, Pulheim (DE)
Assigned to HANON SYSTEMS, Daejeon (KR)
Filed by HANON SYSTEMS, Daejeon (KR)
Filed on Mar. 13, 2022, as Appl. No. 17/693,363.
Application 17/693,363 is a continuation of application No. 15/873,444, filed on Jan. 17, 2018, abandoned.
Claims priority of application No. 102017101208.7 (DE), filed on Jan. 23, 2017.
Prior Publication US 2022/0196160 A1, Jun. 23, 2022
Int. Cl. F16K 5/06 (2006.01); B60H 1/00 (2006.01); F16K 5/12 (2006.01); F16K 5/10 (2006.01); F16K 11/087 (2006.01)
CPC F16K 5/0605 (2013.01) [B60H 1/00485 (2013.01); B60H 1/00885 (2013.01); B60H 1/00899 (2013.01); F16K 5/10 (2013.01); F16K 5/12 (2013.01); F16K 11/0876 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A valve for a heat pump system in a motor vehicle comprising:
a rotary drive;
a valve shaft;
a valve block;
a valve element being received in the valve block;
the valve element being actuatable by the valve shaft through the rotary drive;
the valve block including an inlet, a first outlet and a second outlet, wherein the first outlet and the second outlet are positioned opposed to each other;
the inlet of the valve block being positioned opposed to the rotary drive;
the valve element including an L-shaped throughlet wherein the valve element does not include a substantially straight passage which pass through a center of the valve element to allow passage from one end of the valve element to an opposing end of the valve element;
the valve element including an expansion recess connected at an opening of the throughlet;
the expansion recess extending away from the opening of the throughlet and in a plane defined as being perpendicular to the valve shaft;
the expansion recess being in the form of a groove;
the cross section of the groove of the expansion recess being substantially V-shaped or rectangularly U-shaped;
a depth of the groove of the expansion recess being continuously decreased away from the opening of the throughlet;
the depth of the groove of the expansion recess being decreased to zero at approximately a quarter circle, along the circumference of the valve element, away from the opening of the throughlet;
the expansion recess extending approximately a quarter circle along the circumference of the valve element wherein the expansion recess does not extend more than a quarter circle along the circumference of the valve element and the expansion recess does not extend less than approximately a quarter circle along the circumference of the valve element;
wherein the valve element can be rotated to be in a closed position where there is no longer a fluidic connection between any one of the inlet, the first outlet, and the second outlet to any one of the inlet, the first outlet, and the second outlet because the expansion recess does not extend more than a quarter circle along the circumference of the valve element; and
wherein the valve element can be rotated to be in an open position which allows one passage between the inlet and only one of the first and second outlets because the expansion recess does not extend more than approximately a quarter circle along the circumference of the valve element.