公开(公告)号：US833588A

公开(公告)日：1906-10-16

申请号：US1902132881

申请日：1902-11-26

申请人： DABONVILLE HENRI JULES

发明人： DABONVILLE HENRI JULES

CPC分类号： F01C21/0845

公开(公告)号：US791694A

公开(公告)日：1905-06-06

申请号：US1904219687

申请日：1904-08-05

申请人： HUDSON CLIFFORD C ,  DANIELL CAMMIE W

发明人： HUDSON CLIFFORD C ,  DANIELL CAMMIE W

CPC分类号： F01C21/0845

公开(公告)号：US744614A

公开(公告)日：1903-11-17

申请号：US1903164348

申请日：1903-07-06

申请人： RICE MARK A

发明人： RICE MARK A

CPC分类号： F01C21/0845

公开(公告)号：US722185A

公开(公告)日：1903-03-03

申请号：US1902131896

申请日：1902-11-18

申请人： JOSIAH A STRATTON ,  ROBINSON JAMES

发明人： ROBINSON JAMES

CPC分类号： F01C21/0845

公开(公告)号：US593808A

公开(公告)日：1897-11-16

申请号：US593808D

CPC分类号： F01C21/0845

公开(公告)号：US224146A

公开(公告)日：1880-02-03

申请号：US224146D

CPC分类号： F01C21/0845

公开(公告)号：US191205A

公开(公告)日：1877-05-22

申请号：US191205D

CPC分类号： F01C21/0845

公开(公告)号：US104950A

公开(公告)日：1870-07-05

申请号：US104950D

CPC分类号： F01C21/0845

公开(公告)号：US20240191625A1

公开(公告)日：2024-06-13

申请号：US18582521

申请日：2024-02-20

申请人： Herbert Dym

发明人： Herbert Dym

IPC分类号： F01C1/067 ,  F01C21/08 ,  F04C2/344 ,  F04C15/00

CPC分类号： F01C1/067 ,  F01C21/08 ,  F01C21/0845 ,  F04C2/3442 ,  F04C15/0061

摘要： A hydraulic device comprises a rotary toroidal piston chamber having a rectangular space with a bottom, two sidewalls, and an open top. Four stationary pistons and two retractable gates for each piston are within the toroidal chamber mounted on a chamber wheel fixed to an axle on which it rotates, wherein the pistons and the gates are evenly spaced around the toroidal chamber separating the chamber into four partitions. A piston support for each piston is configured to hold the piston stationary while the piston chamber rotates. A stationary cover encircles and seals the open top of the piston chamber wherein openings through the stationary cover allow each of the piston supports to pass through and be sealed. An input port opening and an output port opening are in the stationary cover for each partition. The piston chamber rotates by reacting directly to continuous hydraulic force on the stationary pistons.

公开(公告)号：US20180209271A1

公开(公告)日：2018-07-26

申请号：US15327481

申请日：2015-07-19

申请人： PADMINI VNA MECHATRONICS PVT. LTD.

发明人： KABIR BHANDARI ,  RAJESH KUMAR SAHOO ,  PRAVEEN GUPTA ,  SUMIT RAJPAL

IPC分类号： F01C21/08 ,  F04C18/344 ,  F04C25/02 ,  F04C28/06 ,  F04C29/02 ,  B60T17/02

CPC分类号： F01C21/0845 ,  B60T17/02 ,  F01C21/0881 ,  F04C18/3441 ,  F04C25/02 ,  F04C28/06 ,  F04C29/021

摘要： A vacuum pump for automobiles used for brake application is provided wherein a method of reducing power consumption and running torque in a vacuum pump of a motor vehicle is explained. The present invention also provides a vacuum pump for automobiles comprising an actuator, a new vane locking assembly, a new vane and rotor assembly, a new non return valve assembly, the controlled oil supply means and a reed stopper assembly that reduces power loss and unnecessary frictional forces and to maintain a controlled oil supply to the vacuum pump.