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1. 发明专利

DE60302174D1 未知
公开(公告)号：DE60302174D1
公开(公告)日：2005-12-15
申请号：DE60302174
申请日：2003-04-24
申请人： TOYODA MACHINE WORKS LTD
发明人： FUJIWARA HIDETOSHI , SUZUKI YOSHINORI , YAMAUCHI KENTARO
IPC分类号： F01C21/10 , F04C2/344 , F04C14/26 , F04C15/06 , F04C15/04
摘要： In a housing of a pump apparatus having a flow control valve to discharge a part of excess fluid in a deviated slanting way to a bypass pass 11, a pair of suction paths 19, 19' is formed opposite to end portions 119, 119' of the bypass path 11 to send operation fluid to suction ports of the pump apparatus. A dividing wall is equipped at opening portions of said pair of suction paths 19, 19' to distribute the operation fluid to each of suction paths 19, 19'. A cross sectional area of one of said opening portions in a side of a direction of said deviated slanting way is smaller than a cross sectional area of the other of said opening portions in an opposite side of the deviated slanting way to relatively restrict a flow of said operation fluid in said one of opening portions. In a housing of a pump apparatus having a flow control valve to discharge a part of excess fluid in a deviated slanting way to a bypass pass 11, a pair of suction paths 19, 19' is formed opposite to end portions 119, 119' of the bypass path 11 to send operation fluid to suction ports of the pump apparatus. A dividing wall is equipped at opening portions of said pair of suction paths 19, 19' to distribute the operation fluid to each of suction paths 19, 19'. A cross sectional area of one of said opening portions in a side of a direction of said deviated slanting way is smaller than a cross sectional area of the other of said opening portions in an opposite side of the deviated slanting way to relatively restrict a flow of said operation fluid in said one of opening portions.

2. 发明专利

DE69908741T2 未知
公开(公告)号：DE69908741T2
公开(公告)日：2004-04-22
申请号：DE69908741
申请日：1999-12-09
申请人： TOYODA MACHINE WORKS LTD
发明人： FUJIWARA HIDETOSHI , YAMAMORI MOTOYASU , YAMAUCHI KENTARO
IPC分类号： F01C21/08 , F04C2/344

3. 发明专利

DE60302174T2 未知
公开(公告)号：DE60302174T2
公开(公告)日：2006-07-20
申请号：DE60302174
申请日：2003-04-24
申请人： TOYODA MACHINE WORKS LTD
发明人： FUJIWARA HIDETOSHI , SUZUKI YOSHINORI , YAMAUCHI KENTARO
IPC分类号： F04C2/344 , F01C21/10 , F04C14/26 , F04C15/06
摘要： In a housing of a pump apparatus having a flow control valve to discharge a part of excess fluid in a deviated slanting way to a bypass pass 11, a pair of suction paths 19, 19' is formed opposite to end portions 119, 119' of the bypass path 11 to send operation fluid to suction ports of the pump apparatus. A dividing wall is equipped at opening portions of said pair of suction paths 19, 19' to distribute the operation fluid to each of suction paths 19, 19'. A cross sectional area of one of said opening portions in a side of a direction of said deviated slanting way is smaller than a cross sectional area of the other of said opening portions in an opposite side of the deviated slanting way to relatively restrict a flow of said operation fluid in said one of opening portions. In a housing of a pump apparatus having a flow control valve to discharge a part of excess fluid in a deviated slanting way to a bypass pass 11, a pair of suction paths 19, 19' is formed opposite to end portions 119, 119' of the bypass path 11 to send operation fluid to suction ports of the pump apparatus. A dividing wall is equipped at opening portions of said pair of suction paths 19, 19' to distribute the operation fluid to each of suction paths 19, 19'. A cross sectional area of one of said opening portions in a side of a direction of said deviated slanting way is smaller than a cross sectional area of the other of said opening portions in an opposite side of the deviated slanting way to relatively restrict a flow of said operation fluid in said one of opening portions.

4. 发明专利

DE69820809D1 未知
公开(公告)号：DE69820809D1
公开(公告)日：2004-02-05
申请号：DE69820809
申请日：1998-04-09
申请人： TOYODA MACHINE WORKS LTD
发明人： WATANABE KAZUHIRO , IMANISHI TAKASHI , HONAGA SUSUMU , INAGUMA YOSHIHARU , FUJIWARA HIDETOSHI , KATO HIDEYA
IPC分类号： B62D5/06 , F15B11/042 , F15B11/05 , F15B13/00
摘要： A flow control device, responsive to the rotational speed of a pump and to load pressure, has a simple structure. And a housing of the flow control device for saving energy can make use of a general pump housing (10) not for saving energy as a common housing. The flow control device of a power steering apparatus, arranged in a housing (10) of a pump, includes a flow control valve (37) and a load pressure responsive valve (61). The flow control valve (37) includes a bypass spool (30) with a control rod (50) penetrating a metering orifice (22). The load pressure responsive valve (61) is incorporated in a union for response to the load pressure. The control rod (50) is located on the bypass spool (30) for response to the rotational speed of the pump.

5. 发明专利

DE69219184D1 未知
公开(公告)号：DE69219184D1
公开(公告)日：1997-05-28
申请号：DE69219184
申请日：1992-02-17
申请人： TOYODA MACHINE WORKS LTD
发明人： FUJIWARA HIDETOSHI , NARUSA MITSUNORI
IPC分类号： F01C21/08 , F04C11/00 , F04C15/00 , F04C2/344
摘要： There is disclosed an improved tandem pump which operates satisfactorily even at low temperatures. The pump comprises a pump housing, a first rotor, plural first vanes held by the first rotor, a second rotor, and plural second vanes held by the second rotor. A first cam ring, an intermediate side plate, and a second cam ring are disposed side by side to constitute first and second pump chambers in the housing. The side plate is split into plural parts. Oil delivered by rotation of the first rotor is forced into a pressure chamber formed between the plural parts of the intermediate side plate. The portion of the inner end surface of each first vane which receives pressure is made smaller in area than the portion of the inner end surface of each second vane which receives pressure.

6. 发明专利

DE69816202T2 未知
公开(公告)号：DE69816202T2
公开(公告)日：2004-04-15
申请号：DE69816202
申请日：1998-09-03
申请人： TOYODA MACHINE WORKS LTD
发明人： HONAGA SUSUMU , FUJIWARA HIDETOSHI , YAMAMORI MOTOYASU
IPC分类号： F04C14/26 , F04B49/00 , F04C15/06 , F04C15/04

7. 发明专利

DE69816202D1 未知
公开(公告)号：DE69816202D1
公开(公告)日：2003-08-14
申请号：DE69816202
申请日：1998-09-03
申请人： TOYODA MACHINE WORKS LTD
发明人： HONAGA SUSUMU , FUJIWARA HIDETOSHI , YAMAMORI MOTOYASU
IPC分类号： F04C14/26 , F04B49/00 , F04C15/06 , F04C15/04

8. 发明专利

DE69219184T2 未知
公开(公告)号：DE69219184T2
公开(公告)日：1997-08-14
申请号：DE69219184
申请日：1992-02-17
申请人： TOYODA MACHINE WORKS LTD
发明人： FUJIWARA HIDETOSHI , NARUSA MITSUNORI
IPC分类号： F01C21/08 , F04C11/00 , F04C15/00 , F04C2/344
摘要： There is disclosed an improved tandem pump which operates satisfactorily even at low temperatures. The pump comprises a pump housing, a first rotor, plural first vanes held by the first rotor, a second rotor, and plural second vanes held by the second rotor. A first cam ring, an intermediate side plate, and a second cam ring are disposed side by side to constitute first and second pump chambers in the housing. The side plate is split into plural parts. Oil delivered by rotation of the first rotor is forced into a pressure chamber formed between the plural parts of the intermediate side plate. The portion of the inner end surface of each first vane which receives pressure is made smaller in area than the portion of the inner end surface of each second vane which receives pressure.

9. 发明专利

DE69820809T2 未知
公开(公告)号：DE69820809T2
公开(公告)日：2004-11-04
申请号：DE69820809
申请日：1998-04-09
申请人： TOYODA MACHINE WORKS LTD
发明人： WATANABE KAZUHIRO , IMANISHI TAKASHI , HONAGA SUSUMU , INAGUMA YOSHIHARU , FUJIWARA HIDETOSHI , KATO HIDEYA
IPC分类号： B62D5/06 , F15B11/042 , F15B11/05 , F15B13/00
摘要： A flow control device, responsive to the rotational speed of a pump and to load pressure, has a simple structure. And a housing of the flow control device for saving energy can make use of a general pump housing (10) not for saving energy as a common housing. The flow control device of a power steering apparatus, arranged in a housing (10) of a pump, includes a flow control valve (37) and a load pressure responsive valve (61). The flow control valve (37) includes a bypass spool (30) with a control rod (50) penetrating a metering orifice (22). The load pressure responsive valve (61) is incorporated in a union for response to the load pressure. The control rod (50) is located on the bypass spool (30) for response to the rotational speed of the pump.

10. 发明专利

DE69908741D1 未知
公开(公告)号：DE69908741D1
公开(公告)日：2003-07-17
申请号：DE69908741
申请日：1999-12-09
申请人： TOYODA MACHINE WORKS LTD
发明人： FUJIWARA HIDETOSHI , YAMAMORI MOTOYASU , YAMAUCHI KENTARO
IPC分类号： F01C21/08 , F04C2/344

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