TITLE: Cardioid-looking curve, does it have a name?
QUESTION [22 upvotes]: The curve, given in polar coordinates as $r(\theta)=\sin(\theta)/\theta$
is plotted below.

This is similar to the classical cardioid, but it is not the same curve (the curve above is not even algebraic, I believe). Does this curve have a name? Does it show up somewhere?
This curve has the property that it solves $\mathrm{Im}(1/z+\log(z))=0$, if this perhaps rings a bell.
This particular curve arises in some research I am working on at the moment, and it would be great if it perhaps connects to some classical area.
Edit: Thanks for the great references!
As a reward, here is a more artistic rendering of the shape
using a type of complex dynamical systems.

REPLY [2 votes]: From what LSpice and skbmoore shared https://mathcurve.com/courbes2d/cochleoid/cochleoid.shtml,
There's this illustration of a helix on a cylinder
The picture in the middle is the view when lined up with the side of the cylinder. If I understand the site correctly, the line traced by the helix in this perspective is a cochleoid.