公开(公告)号：US20250020237A1

公开(公告)日：2025-01-16

申请号：US18754662

申请日：2024-06-26

Applicant: Robert Bosch GmbH

Inventor： Hank Brockner ,  Chris Franklin ,  Stephen Zukowski ,  Paul Mason ,  David Toutant ,  Thomas R. Chapman ,  George Popovici

IPC: F16K31/524 ,  F01P7/14

Abstract: A valve assembly includes an assembly housing and fluid valves disposed in the assembly housing. The assembly housing includes a first manifold that defines a plurality of first ports and a second manifold that defines a plurality of second valve ports. Each second valve port is associated with a corresponding one of the first ports to form a port pair. The assembly housing includes a valve chamber disposed between the first manifold and the second manifold. The valve chamber is in fluid communication with an interior space of the first manifold via the first ports and is in fluid communication with an interior space of the second manifold via the second valve ports. Each fluid valve is configured to control fluid flow between the first valve port and the second valve port of a respective port pair.

公开(公告)号：US20250020236A1

公开(公告)日：2025-01-16

申请号：US18754642

申请日：2024-06-26

Applicant: Robert Bosch GmbH

Inventor： Hank Brockner ,  Chris Franklin ,  Stephen Zukowski ,  Paul Mason ,  David Toutant ,  Thomas R. Chapman ,  George Popovici

IPC: F16K31/524 ,  F01P7/14

Abstract: A cam-driven valve system includes a valve housing configured to define a plurality of fluid passageways and to support an array of sliding gate fluid valves in the fluid passageways in such a way that the flow of fluid therethrough is controlled. The system includes a plurality of cams supported on a cam shaft. The cam shaft is arranged so that each cam is associated with a corresponding sliding gate valve. Rotation of the cam shaft results in actuation of the valves via the cams. The cams of the cam shaft vary in shape and size.

公开(公告)号：US20170191402A1

公开(公告)日：2017-07-06

申请号：US15320417

申请日：2015-06-19

Applicant: Robert Bosch GmbH

Inventor： Michael Sortor ,  Dana Nicgorski ,  Stephen Zukowski

IPC: F01P5/04 ,  F01P9/06 ,  B60H1/32 ,  F01P7/04

CPC classification number: F01P5/04 ,  B60H1/3204 ,  B60H1/3227 ,  B60H2001/3248 ,  B60H2001/3251 ,  B60H2001/3255 ,  B60H2001/326 ,  B60H2001/3277 ,  F01P7/048 ,  F01P9/06 ,  F01P2005/046 ,  F04D25/166

Abstract: Method of cooling a heat exchanger of an engine using a cooling fan system includes: measuring conditions of an engine cooling system, determining a desired fan cooling demand. Based on the fan cooling demand, a fan control circuit operates to selectively control an electrically commutated (EC) motor at a continuously variable speed for an EC cooling fan and to control a direct current (DC) motor of a DC cooling fan. The DC motor is controlled to: not operate the DC cooling fan, operate the DC motor at a first predetermined operating speed, and operate the DC motor at a second predetermined operating speed corresponding to a second DC motor speed signal that is less than the first predetermined operating speed. The conditions for determining fan cooling demand include at least one of a temperature and a pressure of an engine coolant and of a refrigerant of a vehicle air conditioning system.