"bent on improving" is a correct and usable phrase in written English, and it is often used to express enthusiasm for making progress or achieving success
For example, "The team is bent on improving their ranking and winning the championship this year."
Scientifically inclined and pedagogical, he seems bent on improving me.
A concerned liberal, she writes earnest books about Africa's problems and is bent on improving Michael and elevating herself.
He warned the country's reclusive government that it faced further isolation, swift retaliation and a United States bent on improving its own missile defense systems.
In the Helicon Hall affair, as on other occasions, Sinclair was plagued by the kind of comic misfortune that tends to befall those bent on improving themselves and others.
Even our most test-successful children seem bent on improving their test scores by any means necessary, as witnessed recently by the testing scandal at Stuyvesant High School in Manhattan (my alma mater), where more than 80 students are being investigated for cheating on tests that they knew would have no significant impact on their academic futures.
Until Maxygen came along, scientists bent on improving gene function had traditionally relied on so-called rational drug design or random muta-genesis.
"[They] hurt the livelihood of the North Korean people before they affect the interest of their leadership, hell-bent on improving its nuclear arsenal," he wrote in the Korea Times.
Rather than being like the Americans, who have allowed big business to run government, we need our leaders to have faith in us as empowered, active citizens, hell-bent on improving our society.
In both projects, the administration, bent on proving that outside consultants could improve the workings of government, ignored clear signs that the projects were foundering, the interviews and records show.
This stems the inexorability of health care cost inflation exceeding the CPI, and thus will have a major impact on improving outcomes and bending the cost curve down.
Where you've tried everything you can to improve a difficult relationship at work but the individual still seems hell bent on making you miserable, then it's time to look at your options.
