公开(公告)号：US20240318734A1

公开(公告)日：2024-09-26

申请号：US18732284

申请日：2024-06-03

Applicant: DENSO CORPORATION

Inventor： Hiroshi OGAWA ,  Kazuhide UCHIDA ,  Mikio MATSUDA ,  Teppei MATSUMOTO ,  Akira HIGUCHI

IPC: F16K11/074 ,  F16K41/10

CPC classification number: F16K11/074 ,  F16K41/106

Abstract: A rotor is placed on one axial side relative to a passage hole forming portion at an inside of a housing. A differential pressure device is placed on the one axial side relative to the rotor and has a pressure chamber. The housing has: a one-side space that is placed on the one axial side relative to the rotor; and at least one other-side space that is placed on another axial side, which is opposite to the one axial side, relative to the passage hole forming portion. The differential pressure device generates an urging force that urges the rotor against the passage hole forming portion by a differential pressure between a pressure in the pressure chamber and a pressure in the one-side space in a case where a pressure in the at least one other-side space is higher than the pressure in the one-side space.

公开(公告)号：US20190203714A1

公开(公告)日：2019-07-04

申请号：US16084062

申请日：2017-03-10

Applicant: DENSO CORPORATION

Inventor： Yuichi OHNO ,  Mikio MATSUDA ,  Hiroshi OGAWA ,  Yoshinori MURASE

IPC: F04C18/344 ,  F04C23/00

CPC classification number: F04C18/3441 ,  F04C18/344 ,  F04C23/00 ,  F04C23/003 ,  F04C29/00 ,  F04C2240/20 ,  F05B2240/20

Abstract: A rotary cylinder type compressor includes: a cylinder that is rotatably placed in an inside of a housing; a rotor that is placed in an inside of the cylinder and is rotatable about an eccentric axis that is eccentric to a rotational central axis of the cylinder; and a partition member that partitions a working chamber formed between an outer peripheral surface of the rotor and an inner peripheral surface of the cylinder into a suction space and a compression space. When a pressure of fluid in the compression space is equal to or larger than a reference pressure, a contact stress, which is exerted at an adjoining portion between the outer peripheral surface of the rotor and the inner peripheral surface of the cylinder, is increased in comparison to a case where the pressure of the fluid in the compression space is smaller than the reference pressure.

公开(公告)号：US20180202569A1

公开(公告)日：2018-07-19

申请号：US15743850

申请日：2016-07-07

Applicant: DENSO CORPORATION ,  SOKEN, INC.

Inventor： Yasuhiro KAWASE ,  Yukikatsu OZAKI ,  Mikio MATSUDA ,  Tetsuya ITOU ,  Sadahisa ONIMARU ,  Hiroki ISHII

IPC: F16K31/04 ,  F16K11/14 ,  F16K1/44 ,  F16K31/53 ,  B60H1/00

Abstract: An actuator includes a rod, an electric motor to generate a rotational driving force on supply of electricity, an output shaft to output the rotational driving force of the electric motor to the rod, a feed screw mechanism, and a rotation prevention mechanism. The feed screw mechanism includes a female screw portion formed on one of the output shaft and the rod, and a male screw portion formed on the other to mesh with the female screw portion. The rotation prevention mechanism is configured to regulate rotation of the rod caused by the rotational driving force of the electric motor.