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1. 发明授权

US4724867A Vacuum check valve 失效
标题翻译：真空止回阀
公开(公告)号：US4724867A
公开(公告)日：1988-02-16
申请号：US909738
申请日：1986-09-19
申请人： William H. Gillespie, III , Donald L. Heffner , David A. Homan , Dennis G. Merical , James W. Miller , Donald L. Parker
发明人： William H. Gillespie, III , Donald L. Heffner , David A. Homan , Dennis G. Merical , James W. Miller , Donald L. Parker
IPC分类号： F16K15/06 , F16K47/02
CPC分类号： F16K47/02 , F16K15/063 , Y10T137/785 , Y10T137/7897
摘要： Resilient side loading of vacuum brake booster check valves to inhibit valve pulsations and resulting valve noises generated by pulsations from the vacuum source.
摘要翻译：真空制动助力器止回阀的弹性侧装载，以阻止阀脉动和由真空源产生的脉动产生的阀门噪音。

2. 发明授权

US4750516A Vacuum check valve 失效
标题翻译：真空止回阀
公开(公告)号：US4750516A
公开(公告)日：1988-06-14
申请号：US76033
申请日：1987-07-21
申请人： Donald L. Heffner , Donald L. Parker
发明人： Donald L. Heffner , Donald L. Parker
IPC分类号： F16K15/06 , F16K47/02
CPC分类号： F16K15/063 , F16K47/02 , Y10T137/785 , Y10T137/7897
摘要： Resilient side loading of vacuum brake booster check valves by U-shaped spring clips engaging the valve stems to inhibit valve pulsations and resulting valve noises generated by pulsations from the vacuum source.
摘要翻译：通过与阀杆接合的U形弹簧夹来对真空制动助力器止回阀进行弹性侧面装载，以阻止阀脉动和由真空源产生的脉动产生的阀门噪声。

3. 发明授权

US4763689A Vacuum check valve 失效
标题翻译：真空止回阀
公开(公告)号：US4763689A
公开(公告)日：1988-08-16
申请号：US76201
申请日：1987-07-21
申请人： Donald L. Heffner , Donald L. Parker
发明人： Donald L. Heffner , Donald L. Parker
IPC分类号： F16K15/06 , F16K47/02
CPC分类号： F16K47/02 , F16K15/063 , Y10T137/785 , Y10T137/7897
摘要： Resilient side loading of vacuum brake booster check valves by an O-ring type resilient spring to inhibit valve pulsations and resulting valve noises generated by pulsations from the vacuum source.
摘要翻译：通过O形圈弹性弹簧来弹性侧装载真空制动助力止回阀，以阻止阀脉动和由真空源脉动产生的阀门噪声。

4. 发明授权

US4750517A Vacuum check valve 失效
标题翻译：真空止回阀
公开(公告)号：US4750517A
公开(公告)日：1988-06-14
申请号：US076034
申请日：1987-07-21
申请人： Donald L. Heffner , Donald L. Parker
发明人： Donald L. Heffner , Donald L. Parker
IPC分类号： F16K15/06 , F16K47/02
CPC分类号： F16K47/02 , F16K15/063 , Y10T137/785 , Y10T137/7897
摘要： Resilient side loading of vacuum brake booster check valves by lightly loaded coil springs acting directly on said valve member to inhibit valve pulsations and resulting valve noises generated by pulsations from the vacuum source.
摘要翻译：通过轻载螺旋弹簧直接作用在所述阀构件上的真空制动助力止回阀的弹性侧装载，以阻止阀脉动和由真空源脉动产生的所产生的阀噪声。

5. 发明授权

US4628959A Vacuum check valve 失效
标题翻译：真空止回阀
公开(公告)号：US4628959A
公开(公告)日：1986-12-16
申请号：US771219
申请日：1985-08-30
申请人： Donald L. Parker , Donald L. Heffner
发明人： Donald L. Parker , Donald L. Heffner
IPC分类号： B60T13/56 , B60T13/52 , F16K15/06
CPC分类号： F16K15/063 , B60T13/52 , Y10T137/7897 , Y10T137/7917
摘要： A vacuum check valve assembly having an axially guided poppet valve and a minimal restriction to air flow. The poppet valve has a seal made of a fluoro-silicone rubber which has excellent non-sticking and non-leaking characteristics over a wide temperature range. The valve assembly may be combined with a fuel vapor adsorbent canister.
摘要翻译：一种真空止回阀组件，其具有轴向引导的提升阀并且对气流的最小限制。提升阀具有由氟硅橡胶制成的密封件，其在宽温度范围内具有优异的不粘和非泄漏特性。阀组件可以与燃料蒸气吸附剂罐组合。

6. 发明授权

US4756333A Vacuum check valve 失效
标题翻译：真空止回阀
公开(公告)号：US4756333A
公开(公告)日：1988-07-12
申请号：US76205
申请日：1987-07-21
申请人： Donald L. Heffner , Dennis G. Merical
发明人： Donald L. Heffner , Dennis G. Merical
IPC分类号： F16K15/06 , F16K47/02
CPC分类号： F16K47/02 , F16K15/063 , Y10T137/785 , Y10T137/7897
摘要： Resilient side loading of vacuum brake booster check valves to inhibit valve pulsations and resulting valve noises generated by pulsations from the vacuum source achieved by a single spring member functioning as a valve closing spring and as a lateral biasing spring acting on the valve.
摘要翻译：真空制动助力止回阀的弹性侧装载，以阻止阀脉动，并由作为阀关闭弹簧的单个弹簧构件和作用在阀上的侧向偏置弹簧由真空源产生的脉动产生的阀门噪声。

7. 发明授权

US4856554A Vacuum check valve and method of control 失效
标题翻译：真空止回阀及控制方法
公开(公告)号：US4856554A
公开(公告)日：1989-08-15
申请号：US277749
申请日：1988-11-30
申请人： Donald L. Heffner , Dennis G. Merical , David A. Homan
发明人： Donald L. Heffner , Dennis G. Merical , David A. Homan
IPC分类号： F16K15/06
CPC分类号： F16K15/063 , Y10S137/903 , Y10T137/785 , Y10T137/7897 , Y10T137/7905 , Y10T137/7932
摘要： A high flow vacuum check valve incorporates a plurality of rubber dampening feet located on the sealing bead side of the valve poppet. The feet extend axially slightly beyond the sealing surface of the sealing bead so as to have an axial compression interference, the feet first engaging the valve seat as the valve poppet moves from its open position toward its closed position, and then compressing as the valve poppet continues its movement until the valve is fully closed with the sealing bead in full sealing engagement with the valve seat. This interference compression causes the feet to perform as rate changing springs so long as they are compressed to any extent, dampening axial movements of the valve poppet, and also act as stabilizing members on the valve poppet in the lateral plane. The feet may also be constructed with tiers which also contribute to the stability of the valve poppet.
摘要翻译：高流量真空止回阀包括位于阀提升阀的密封珠侧的多个橡胶阻尼脚。脚沿轴向略微延伸超过密封边缘的密封表面，以便具有轴向压缩干扰，当阀提升阀从其打开位置向其关闭位置移动时，脚首先接合阀座，然后随着阀提动而压缩继续运动，直到阀门完全关闭，密封圈与阀座完全密封接合。这种干涉压缩使得脚作为速率改变弹簧执行，只要它们被压缩到任何程度，抑制阀提升阀的轴向运动，并且还用作侧向平面上的阀提升阀上的稳定构件。脚也可以用层次构成，这也有助于阀提升阀的稳定性。

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